# \[ANN\] LemmaGen Analysis for ElasticSearch plugin

**URL:** <https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585>\
**Category:** Elasticsearch\
**Created:** [November 25, 2013, 9:04pm UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585 "2013-11-25T21:04:28Z")\
**Posts on this page:** 16\
**Page:** 1

<div class="post-metadata">

**Author:** ![vhyza1](https://avatars.discourse-cdn.com/v4/letter/v/aeb1de/32.png) [@vhyza1](https://discuss.elastic.co/u/vhyza1)\
**Post date:** [November 25, 2013, 9:04pm UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/1 "2013-11-25T21:04:28Z")

</div>

Hello,

I wrote plugin which provides jLemmaGen ([https://bitbucket.org/hlavki/jlemmagen](https://bitbucket.org/hlavki/jlemmagen)) lemmatizer with 14 prebuilt European lexicons.

jLemmaGen is Java implementation of LemmaGen (Multilingual Open Source Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)

If you are interested, source code is located at GitHub [https://github.com/vhyza/elasticsearch-analysis-lemmagen](https://github.com/vhyza/elasticsearch-analysis-lemmagen)

Regards,  
Vojta

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**Author:** ![Lukas\_Vlcek1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas_vlcek1/32/819_2.png) [@Lukas\_Vlcek1](https://discuss.elastic.co/u/Lukas_Vlcek1)\
**Post date:** [November 26, 2013, 7:37am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/2 "2013-11-26T07:37:50Z")

</div>

Hi Vojta,

Very interesting. Do you think you can include license info for both the  
code and linguistic resources?

Regards,  
Lukáš  
Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.vojtech@gmail.com](mailto:hyza.vojtech@gmail.com) napsal(a):

> Hello,
> 
> I wrote plugin which provides jLemmaGen (  
> [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)) lemmatizer with 14 prebuilt  
> European lexicons.
> 
> jLemmaGen is Java implementation of LemmaGen (Multilingual Open Source  
> Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)
> 
> If you are interested, source code is located at GitHub  
> [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)
> 
> Regards,  
> Vojta
> 
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<div class="post-metadata">

**Author:** ![vhyza1](https://avatars.discourse-cdn.com/v4/letter/v/aeb1de/32.png) [@vhyza1](https://discuss.elastic.co/u/vhyza1)\
**Post date:** [November 26, 2013, 9:02am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/3 "2013-11-26T09:02:39Z")

</div>

Hi Lukas,

according to the jLemmaGen author, dictionaries are licensed, but prebuilt  
trees are not  
([http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html](http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html)). So I  
guess whole plugin can be licensed under Apache 2 license  
([Added LICENSE · vhyza/elasticsearch-analysis-lemmagen@144f449 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/144f4490493c9d973683f6a611acb7bdfbee15cc))

Regards,  
Vojta

On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:

> Hi Vojta,
> 
> Very interesting. Do you think you can include license info for both the  
> code and linguistic resources?
> 
> Regards,  
> Lukáš  
> Dne 25.11.2013 22:04 "Vojtech Hyza" \<[hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) \<javascript:\>\>  
> napsal(a):
> 
> > Hello,
> > 
> > I wrote plugin which provides jLemmaGen (  
> > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > lemmatizer with 14 prebuilt European lexicons.
> > 
> > jLemmaGen is Java implementation of LemmaGen (Multilingual Open Source  
> > Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > 
> > If you are interested, source code is located at GitHub  
> > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > 
> > Regards,  
> > Vojta
> > 
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**Author:** ![Lukas\_Vlcek1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas_vlcek1/32/819_2.png) [@Lukas\_Vlcek1](https://discuss.elastic.co/u/Lukas_Vlcek1)\
**Post date:** [November 26, 2013, 9:49am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/4 "2013-11-26T09:49:02Z")

</div>

Hi Vojta,

I am not a layer but from my initial investigation of MULTEXT-East V4  
license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)) it sounded as if any  
work built on top of "RESOURCES" could be used for "Research Purpose" only  
and "[...] excludes the development or commercial exploitation of any  
product or prototype product incorporating, using or based upon RESOURCES  
or any parts of RESOURCES."

Hopefully, I am just missing something. I feel a bit confused about the  
licensing though (but not saying this is your fault!).

Regards,  
Lukáš

On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.vojtech@gmail.com](mailto:hyza.vojtech@gmail.com) wrote:

> Hi Lukas,
> 
> according to the jLemmaGen author, dictionaries are licensed, but prebuilt  
> trees are not (  
> [http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html](http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html)). So  
> I guess whole plugin can be licensed under Apache 2 license (  
> [Added LICENSE · vhyza/elasticsearch-analysis-lemmagen@144f449 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/144f4490493c9d973683f6a611acb7bdfbee15cc)  
> )
> 
> Regards,  
> Vojta
> 
> On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> 
> > Hi Vojta,
> > 
> > Very interesting. Do you think you can include license info for both the  
> > code and linguistic resources?
> > 
> > Regards,  
> > Lukáš  
> > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) napsal(a):
> > 
> > > Hello,
> > > 
> > > I wrote plugin which provides jLemmaGen ([Bitbucket](https://bitbucket.org/hlavki/)  
> > > jlemmagen[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > lemmatizer with 14 prebuilt European lexicons.
> > > 
> > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open Source  
> > > Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > 
> > > If you are interested, source code is located at GitHub  
> > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > 
> > > Regards,  
> > > Vojta
> > > 
> > > --  
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**Author:** ![vhyza1](https://avatars.discourse-cdn.com/v4/letter/v/aeb1de/32.png) [@vhyza1](https://discuss.elastic.co/u/vhyza1)\
**Post date:** [November 26, 2013, 10:22am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/5 "2013-11-26T10:22:38Z")

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Hi Lukas,

hmm, I understood from the post I sent before, that the prebuilt trees are  
not affected by license. And on the mail page of LemmaGen project  
([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)) is

• it is free - open source licence for all the code included in the project,  
• multilingual support - currently 12 different languages included,

So I'm little bit confused now.

Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons are part  
of his lemmagen-lang.jar package).

Regards,  
Vojta

On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:

> Hi Vojta,
> 
> I am not a layer but from my initial investigation of MULTEXT-East V4  
> license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> it sounded as if any work built on top of "RESOURCES" could be used for  
> "Research Purpose" only and "[...] excludes the development or commercial  
> exploitation of any product or prototype product incorporating, using or  
> based upon RESOURCES or any parts of RESOURCES."
> 
> Hopefully, I am just missing something. I feel a bit confused about the  
> licensing though (but not saying this is your fault!).
> 
> Regards,  
> Lukáš
> 
> On Tue, Nov 26, 2013 at 10:02 AM, vhyza \<[hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) \<javascript:\>
> 
> > wrote:
> 
> > Hi Lukas,
> > 
> > according to the jLemmaGen author, dictionaries are licensed, but  
> > prebuilt trees are not (  
> > [http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html](http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > So I guess whole plugin can be licensed under Apache 2 license (  
> > [Added LICENSE · vhyza/elasticsearch-analysis-lemmagen@144f449 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/144f4490493c9d973683f6a611acb7bdfbee15cc)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > )
> > 
> > Regards,  
> > Vojta
> > 
> > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > 
> > > Hi Vojta,
> > > 
> > > Very interesting. Do you think you can include license info for both the  
> > > code and linguistic resources?
> > > 
> > > Regards,  
> > > Lukáš  
> > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) napsal(a):
> > > 
> > > > Hello,
> > > > 
> > > > I wrote plugin which provides jLemmaGen ([Bitbucket](https://bitbucket.org/hlavki/)  
> > > > jlemmagen[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > lemmatizer with 14 prebuilt European lexicons.
> > > > 
> > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open Source  
> > > > Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > 
> > > > If you are interested, source code is located at GitHub  
> > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > 
> > > > Regards,  
> > > > Vojta
> > > > 
> > > > --  
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**Author:** ![Lukas\_Vlcek1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas_vlcek1/32/819_2.png) [@Lukas\_Vlcek1](https://discuss.elastic.co/u/Lukas_Vlcek1)\
**Post date:** [November 26, 2013, 10:59am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/6 "2013-11-26T10:59:41Z")

</div>

Vojta,

based on what @hlavki says in his email it seems he prebuilt the data  
himself and is not using those found in C# project ("I obtained also  
licenced dictionaries to build rules tree for 15 languages. Dictionaries  
are licenced, but prebuilded trees don't."). In which case I am not sure  
this is a valid according the the license V4 of "RESOURCES" for any other  
use than "Research Purposes".

Looking further on the C# implementation ([http://lemmatise.ijs.si/Software](http://lemmatise.ijs.si/Software))  
it seems to me that they mostly refer to Multext-East V3 or older datasets  
(which might have different license).

In any case, further clarification might be useful. And thanks a lot for  
the effort.

Regards,  
Lukas

On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.vojtech@gmail.com](mailto:hyza.vojtech@gmail.com) wrote:

> Hi Lukas,
> 
> hmm, I understood from the post I sent before, that the prebuilt trees are  
> not affected by license. And on the mail page of LemmaGen project (  
> [http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)) is
> 
> • it is free - open source licence for all the code included in the  
> project,  
> • multilingual support - currently 12 different languages included,
> 
> So I'm little bit confused now.
> 
> Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons are  
> part of his lemmagen-lang.jar package).
> 
> Regards,  
> Vojta
> 
> On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> 
> > Hi Vojta,
> > 
> > I am not a layer but from my initial investigation of MULTEXT-East V4  
> > license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > it sounded as if any work built on top of "RESOURCES" could be used for  
> > "Research Purpose" only and "[...] excludes the development or commercial  
> > exploitation of any product or prototype product incorporating, using or  
> > based upon RESOURCES or any parts of RESOURCES."
> > 
> > Hopefully, I am just missing something. I feel a bit confused about the  
> > licensing though (but not saying this is your fault!).
> > 
> > Regards,  
> > Lukáš
> > 
> > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > 
> > > Hi Lukas,
> > > 
> > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > prebuilt trees are not ([http://lucene.472066.n3](http://lucene.472066.n3).  
> > > [nabble.com/JLemmaGen-project-td4097466.html](http://nabble.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > )
> > > 
> > > Regards,  
> > > Vojta
> > > 
> > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > 
> > > > Hi Vojta,
> > > > 
> > > > Very interesting. Do you think you can include license info for both  
> > > > the code and linguistic resources?
> > > > 
> > > > Regards,  
> > > > Lukáš  
> > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) napsal(a):
> > > > 
> > > > > Hello,
> > > > > 
> > > > > I wrote plugin which provides jLemmaGen ([Bitbucket](https://bitbucket.org/hlavki/)  
> > > > > jlemmagen[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > 
> > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open Source  
> > > > > Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > 
> > > > > If you are interested, source code is located at GitHub  
> > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > 
> > > > > Regards,  
> > > > > Vojta
> > > > > 
> > > > > --  
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<div class="post-metadata">

**Author:** ![vhyza1](https://avatars.discourse-cdn.com/v4/letter/v/aeb1de/32.png) [@vhyza1](https://discuss.elastic.co/u/vhyza1)\
**Post date:** [November 26, 2013, 12:19pm UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/7 "2013-11-26T12:19:27Z")

</div>

Yes, thats exactly why I'm confused right now. I didn't find @hlavki's  
mail, so I tried to ask for help on his Twitter account.

Thank you for the help.

Regards,  
Vojta

On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:

> Vojta,
> 
> based on what @hlavki says in his email it seems he prebuilt the data  
> himself and is not using those found in C# project ("I obtained also  
> licenced dictionaries to build rules tree for 15 languages. Dictionaries  
> are licenced, but prebuilded trees don't."). In which case I am not sure  
> this is a valid according the the license V4 of "RESOURCES" for any other  
> use than "Research Purposes".
> 
> Looking further on the C# implementation ([http://lemmatise.ijs.si/Software](http://lemmatise.ijs.si/Software)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> it seems to me that they mostly refer to Multext-East V3 or older datasets  
> (which might have different license).
> 
> In any case, further clarification might be useful. And thanks a lot for  
> the effort.
> 
> Regards,  
> Lukas
> 
> On Tue, Nov 26, 2013 at 11:22 AM, vhyza \<[hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) \<javascript:\>
> 
> > wrote:
> 
> > Hi Lukas,
> > 
> > hmm, I understood from the post I sent before, that the prebuilt trees  
> > are not affected by license. And on the mail page of LemmaGen project (  
> > [http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > is
> > 
> > • it is free - open source licence for all the code included in the  
> > project,  
> > • multilingual support - currently 12 different languages included,
> > 
> > So I'm little bit confused now.
> > 
> > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons are  
> > part of his lemmagen-lang.jar package).
> > 
> > Regards,  
> > Vojta
> > 
> > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > 
> > > Hi Vojta,
> > > 
> > > I am not a layer but from my initial investigation of MULTEXT-East V4  
> > > license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > exploitation of any product or prototype product incorporating, using or  
> > > based upon RESOURCES or any parts of RESOURCES."
> > > 
> > > Hopefully, I am just missing something. I feel a bit confused about the  
> > > licensing though (but not saying this is your fault!).
> > > 
> > > Regards,  
> > > Lukáš
> > > 
> > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > 
> > > > Hi Lukas,
> > > > 
> > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > prebuilt trees are not ([http://lucene.472066.n3](http://lucene.472066.n3).  
> > > > [nabble.com/JLemmaGen-project-td4097466.html](http://nabble.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > )
> > > > 
> > > > Regards,  
> > > > Vojta
> > > > 
> > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > 
> > > > > Hi Vojta,
> > > > > 
> > > > > Very interesting. Do you think you can include license info for both  
> > > > > the code and linguistic resources?
> > > > > 
> > > > > Regards,  
> > > > > Lukáš  
> > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) napsal(a):
> > > > > 
> > > > > > Hello,
> > > > > > 
> > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > 
> > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > 
> > > > > > If you are interested, source code is located at GitHub  
> > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > 
> > > > > > Regards,  
> > > > > > Vojta
> > > > > > 
> > > > > > --  
> > > > > > You received this message because you are subscribed to the Google  
> > > > > > Groups "elasticsearch" group.  
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> > > > > > send an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com).
> > > > > > 
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> > > > > 
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<div class="post-metadata">

**Author:** ![Lukas\_Vlcek1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas_vlcek1/32/819_2.png) [@Lukas\_Vlcek1](https://discuss.elastic.co/u/Lukas_Vlcek1)\
**Post date:** [November 26, 2013, 12:46pm UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/8 "2013-11-26T12:46:03Z")

</div>

Vojta,

by @hlavki's email I meant  
[http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html](http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html)

On Tue, Nov 26, 2013 at 1:19 PM, vhyza [hyza.vojtech@gmail.com](mailto:hyza.vojtech@gmail.com) wrote:

> Yes, thats exactly why I'm confused right now. I didn't find @hlavki's  
> mail, so I tried to ask for help on his Twitter account.
> 
> Thank you for the help.
> 
> Regards,  
> Vojta
> 
> On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:
> 
> > Vojta,
> > 
> > based on what @hlavki says in his email it seems he prebuilt the data  
> > himself and is not using those found in C# project ("I obtained also  
> > licenced dictionaries to build rules tree for 15 languages. Dictionaries  
> > are licenced, but prebuilded trees don't."). In which case I am not sure  
> > this is a valid according the the license V4 of "RESOURCES" for any other  
> > use than "Research Purposes".
> > 
> > Looking further on the C# implementation ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)  
> > Software[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> > it seems to me that they mostly refer to Multext-East V3 or older datasets  
> > (which might have different license).
> > 
> > In any case, further clarification might be useful. And thanks a lot for  
> > the effort.
> > 
> > Regards,  
> > Lukas
> > 
> > On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > 
> > > Hi Lukas,
> > > 
> > > hmm, I understood from the post I sent before, that the prebuilt trees  
> > > are not affected by license. And on the mail page of LemmaGen project (  
> > > [http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > > is
> > > 
> > > • it is free - open source licence for all the code included in the  
> > > project,  
> > > • multilingual support - currently 12 different languages included,
> > > 
> > > So I'm little bit confused now.
> > > 
> > > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons are  
> > > part of his lemmagen-lang.jar package).
> > > 
> > > Regards,  
> > > Vojta
> > > 
> > > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > > 
> > > > Hi Vojta,
> > > > 
> > > > I am not a layer but from my initial investigation of MULTEXT-East V4  
> > > > license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > > exploitation of any product or prototype product incorporating, using or  
> > > > based upon RESOURCES or any parts of RESOURCES."
> > > > 
> > > > Hopefully, I am just missing something. I feel a bit confused about the  
> > > > licensing though (but not saying this is your fault!).
> > > > 
> > > > Regards,  
> > > > Lukáš
> > > > 
> > > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > 
> > > > > Hi Lukas,
> > > > > 
> > > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > > prebuilt trees are not ([http://lucene.472066.n3.nabbl](http://lucene.472066.n3.nabbl)  
> > > > > [e.com/JLemmaGen-project-td4097466.html](http://e.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > > )
> > > > > 
> > > > > Regards,  
> > > > > Vojta
> > > > > 
> > > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > > 
> > > > > > Hi Vojta,
> > > > > > 
> > > > > > Very interesting. Do you think you can include license info for both  
> > > > > > the code and linguistic resources?
> > > > > > 
> > > > > > Regards,  
> > > > > > Lukáš  
> > > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) napsal(a):
> > > > > > 
> > > > > > > Hello,
> > > > > > > 
> > > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > > 
> > > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > > 
> > > > > > > If you are interested, source code is located at GitHub  
> > > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > > 
> > > > > > > Regards,  
> > > > > > > Vojta
> > > > > > > 
> > > > > > > --  
> > > > > > > You received this message because you are subscribed to the Google  
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<div class="post-metadata">

**Author:** ![Michal\_Hlavac](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/michal_hlavac/32/1940_2.png) [@Michal\_Hlavac](https://discuss.elastic.co/u/Michal_Hlavac)\
**Post date:** [November 27, 2013, 9:25am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/9 "2013-11-27T09:25:39Z")

</div>

Hi Vojta & Lukas,

I understand your confusion and it's quite simple. All binaries are  
licensed under Apache License 2.0 including .lem binary files in  
lemmagen-lang.jar  
.lem file is java serialized rule tree for lemmatization and contains only  
some little fragments from original dictionary.  
This implies that .lem is not dictionary. I have confirmation from author  
of LemmaGen project about it.  
Dictionaries licensed by [http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt) are NOT  
part of project and are stored only on my local computer.  
I use them only to build .lem files. So result is, you can use all content  
of [Bitbucket](https://bitbucket.org/hlavki/jlemmagen) according to Apache License 2.0

If you will have any question, feel free to ask

thanks, miso

On Tuesday, November 26, 2013 1:46:03 PM UTC+1, Lukáš Vlček wrote:

> Vojta,
> 
> by @hlavki's email I meant  
> [http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html](http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html)
> 
> On Tue, Nov 26, 2013 at 1:19 PM, vhyza \<[hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) \<javascript:\>\>wrote:
> 
> > Yes, thats exactly why I'm confused right now. I didn't find @hlavki's  
> > mail, so I tried to ask for help on his Twitter account.
> > 
> > Thank you for the help.
> > 
> > Regards,  
> > Vojta
> > 
> > On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:
> > 
> > > Vojta,
> > > 
> > > based on what @hlavki says in his email it seems he prebuilt the data  
> > > himself and is not using those found in C# project ("I obtained also  
> > > licenced dictionaries to build rules tree for 15 languages. Dictionaries  
> > > are licenced, but prebuilded trees don't."). In which case I am not  
> > > sure this is a valid according the the license V4 of "RESOURCES" for any  
> > > other use than "Research Purposes".
> > > 
> > > Looking further on the C# implementation ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)  
> > > Software[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> > > it seems to me that they mostly refer to Multext-East V3 or older datasets  
> > > (which might have different license).
> > > 
> > > In any case, further clarification might be useful. And thanks a lot for  
> > > the effort.
> > > 
> > > Regards,  
> > > Lukas
> > > 
> > > On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > 
> > > > Hi Lukas,
> > > > 
> > > > hmm, I understood from the post I sent before, that the prebuilt trees  
> > > > are not affected by license. And on the mail page of LemmaGen project (  
> > > > [http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > > > is
> > > > 
> > > > - it is free - open source licence for all the code included in the  
> > > > project,
> > > > - multilingual support - currently 12 different languages included,
> > > > 
> > > > So I'm little bit confused now.
> > > > 
> > > > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons are  
> > > > part of his lemmagen-lang.jar package).
> > > > 
> > > > Regards,  
> > > > Vojta
> > > > 
> > > > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > > > 
> > > > > Hi Vojta,
> > > > > 
> > > > > I am not a layer but from my initial investigation of MULTEXT-East V4  
> > > > > license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > > > exploitation of any product or prototype product incorporating, using or  
> > > > > based upon RESOURCES or any parts of RESOURCES."
> > > > > 
> > > > > Hopefully, I am just missing something. I feel a bit confused about  
> > > > > the licensing though (but not saying this is your fault!).
> > > > > 
> > > > > Regards,  
> > > > > Lukáš
> > > > > 
> > > > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > 
> > > > > > Hi Lukas,
> > > > > > 
> > > > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > > > prebuilt trees are not ([http://lucene.472066.n3.nabbl](http://lucene.472066.n3.nabbl)  
> > > > > > [e.com/JLemmaGen-project-td4097466.html](http://e.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > > > )
> > > > > > 
> > > > > > Regards,  
> > > > > > Vojta
> > > > > > 
> > > > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > > > 
> > > > > > > Hi Vojta,
> > > > > > > 
> > > > > > > Very interesting. Do you think you can include license info for both  
> > > > > > > the code and linguistic resources?
> > > > > > > 
> > > > > > > Regards,  
> > > > > > > Lukáš  
> > > > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) napsal(a):
> > > > > > > 
> > > > > > > > Hello,
> > > > > > > > 
> > > > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > > > 
> > > > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > > > 
> > > > > > > > If you are interested, source code is located at GitHub  
> > > > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > > > 
> > > > > > > > Regards,  
> > > > > > > > Vojta
> > > > > > > > 
> > > > > > > > --  
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<div class="post-metadata">

**Author:** ![vhyza1](https://avatars.discourse-cdn.com/v4/letter/v/aeb1de/32.png) [@vhyza1](https://discuss.elastic.co/u/vhyza1)\
**Post date:** [November 27, 2013, 9:44am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/10 "2013-11-27T09:44:48Z")

</div>

Hi Michal,

thats great! Thank you for your work and clarification.

Regards,  
Vojta

On Wednesday, November 27, 2013 10:25:39 AM UTC+1, Michal Hlaváč wrote:

> Hi Vojta & Lukas,
> 
> I understand your confusion and it's quite simple. All binaries are  
> licensed under Apache License 2.0 including .lem binary files in  
> lemmagen-lang.jar  
> .lem file is java serialized rule tree for lemmatization and contains only  
> some little fragments from original dictionary.  
> This implies that .lem is not dictionary. I have confirmation from author  
> of LemmaGen project about it.  
> Dictionaries licensed by [http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt) are NOT  
> part of project and are stored only on my local computer.  
> I use them only to build .lem files. So result is, you can use all content  
> of [Bitbucket](https://bitbucket.org/hlavki/jlemmagen) according to Apache License 2.0
> 
> If you will have any question, feel free to ask
> 
> thanks, miso
> 
> On Tuesday, November 26, 2013 1:46:03 PM UTC+1, Lukáš Vlček wrote:
> 
> > Vojta,
> > 
> > by @hlavki's email I meant  
> > [http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html](http://lucene.472066.n3.nabble.com/JLemmaGen-project-td4097466.html)
> > 
> > On Tue, Nov 26, 2013 at 1:19 PM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > 
> > > Yes, thats exactly why I'm confused right now. I didn't find @hlavki's  
> > > mail, so I tried to ask for help on his Twitter account.
> > > 
> > > Thank you for the help.
> > > 
> > > Regards,  
> > > Vojta
> > > 
> > > On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:
> > > 
> > > > Vojta,
> > > > 
> > > > based on what @hlavki says in his email it seems he prebuilt the data  
> > > > himself and is not using those found in C# project ("I obtained also  
> > > > licenced dictionaries to build rules tree for 15 languages. Dictionaries  
> > > > are licenced, but prebuilded trees don't."). In which case I am not  
> > > > sure this is a valid according the the license V4 of "RESOURCES" for any  
> > > > other use than "Research Purposes".
> > > > 
> > > > Looking further on the C# implementation ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)  
> > > > Software[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> > > > it seems to me that they mostly refer to Multext-East V3 or older datasets  
> > > > (which might have different license).
> > > > 
> > > > In any case, further clarification might be useful. And thanks a lot  
> > > > for the effort.
> > > > 
> > > > Regards,  
> > > > Lukas
> > > > 
> > > > On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > 
> > > > > Hi Lukas,
> > > > > 
> > > > > hmm, I understood from the post I sent before, that the prebuilt trees  
> > > > > are not affected by license. And on the mail page of LemmaGen project (  
> > > > > [http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > > > > is
> > > > > 
> > > > > • it is free - open source licence for all the code included in the  
> > > > > project,  
> > > > > • multilingual support - currently 12 different languages included,
> > > > > 
> > > > > So I'm little bit confused now.
> > > > > 
> > > > > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons are  
> > > > > part of his lemmagen-lang.jar package).
> > > > > 
> > > > > Regards,  
> > > > > Vojta
> > > > > 
> > > > > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > > > > 
> > > > > > Hi Vojta,
> > > > > > 
> > > > > > I am not a layer but from my initial investigation of MULTEXT-East V4  
> > > > > > license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > > > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > > > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > > > > exploitation of any product or prototype product incorporating, using or  
> > > > > > based upon RESOURCES or any parts of RESOURCES."
> > > > > > 
> > > > > > Hopefully, I am just missing something. I feel a bit confused about  
> > > > > > the licensing though (but not saying this is your fault!).
> > > > > > 
> > > > > > Regards,  
> > > > > > Lukáš
> > > > > > 
> > > > > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > > 
> > > > > > > Hi Lukas,
> > > > > > > 
> > > > > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > > > > prebuilt trees are not ([http://lucene.472066.n3.nabbl](http://lucene.472066.n3.nabbl)  
> > > > > > > [e.com/JLemmaGen-project-td4097466.html](http://e.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > > > > )
> > > > > > > 
> > > > > > > Regards,  
> > > > > > > Vojta
> > > > > > > 
> > > > > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > 
> > > > > > > > Hi Vojta,
> > > > > > > > 
> > > > > > > > Very interesting. Do you think you can include license info for  
> > > > > > > > both the code and linguistic resources?
> > > > > > > > 
> > > > > > > > Regards,  
> > > > > > > > Lukáš  
> > > > > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)  
> > > > > > > > napsal(a):
> > > > > > > > 
> > > > > > > > > Hello,
> > > > > > > > > 
> > > > > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > > > > 
> > > > > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > > > > 
> > > > > > > > > If you are interested, source code is located at GitHub  
> > > > > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > > > > 
> > > > > > > > > Regards,  
> > > > > > > > > Vojta
> > > > > > > > > 
> > > > > > > > > --  
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<div class="post-metadata">

**Author:** ![Lukas\_Vlcek1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas_vlcek1/32/819_2.png) [@Lukas\_Vlcek1](https://discuss.elastic.co/u/Lukas_Vlcek1)\
**Post date:** [November 27, 2013, 10:00am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/11 "2013-11-27T10:00:53Z")

</div>

Hi Michal,

this sounds like a good news.  
Tough, I am still confused (sorry, please bear with me). We can eventually  
take this discussion off list. The following are my concerns:

1. Don't we need confirmation from MULTEXT-East license holder(s) instead  
of LemmaGen author?

2. When you say ".lem is not a dictionary" does it mean it is not a  
"product" in terms of "[...] based upon RESOURCES or any parts of RESOURCES  
"?

Just to make it clear, I am not asking about validity of LemmGen license  
[in my opinion it might be questionable but it is not important], I am  
questioning directly about license of the dictionaries and work based on  
any parts of it.

Regards,  
Lukáš

On Wed, Nov 27, 2013 at 10:25 AM, Michal Hlaváč [hlavki@hlavki.eu](mailto:hlavki@hlavki.eu) wrote:

> Hi Vojta & Lukas,
> 
> I understand your confusion and it's quite simple. All binaries are  
> licensed under Apache License 2.0 including .lem binary files in  
> lemmagen-lang.jar  
> .lem file is java serialized rule tree for lemmatization and contains only  
> some little fragments from original dictionary.  
> This implies that .lem is not dictionary. I have confirmation from author  
> of LemmaGen project about it.  
> Dictionaries licensed by [http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt) are NOT  
> part of project and are stored only on my local computer.  
> I use them only to build .lem files. So result is, you can use all content  
> of [Bitbucket](https://bitbucket.org/hlavki/jlemmagen) according to Apache License 2.0
> 
> If you will have any question, feel free to ask
> 
> thanks, miso
> 
> On Tuesday, November 26, 2013 1:46:03 PM UTC+1, Lukáš Vlček wrote:
> 
> > Vojta,
> > 
> > by @hlavki's email I meant [http://lucene.472066.n3](http://lucene.472066.n3).  
> > [nabble.com/JLemmaGen-project-td4097466.html](http://nabble.com/JLemmaGen-project-td4097466.html)
> > 
> > On Tue, Nov 26, 2013 at 1:19 PM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > 
> > > Yes, thats exactly why I'm confused right now. I didn't find @hlavki's  
> > > mail, so I tried to ask for help on his Twitter account.
> > > 
> > > Thank you for the help.
> > > 
> > > Regards,  
> > > Vojta
> > > 
> > > On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:
> > > 
> > > > Vojta,
> > > > 
> > > > based on what @hlavki says in his email it seems he prebuilt the data  
> > > > himself and is not using those found in C# project ("I obtained also  
> > > > licenced dictionaries to build rules tree for 15 languages. Dictionaries  
> > > > are licenced, but prebuilded trees don't."). In which case I am not  
> > > > sure this is a valid according the the license V4 of "RESOURCES" for any  
> > > > other use than "Research Purposes".
> > > > 
> > > > Looking further on the C# implementation ([http://lemmatise.ijs.si/Softw](http://lemmatise.ijs.si/Softw)  
> > > > are[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> > > > it seems to me that they mostly refer to Multext-East V3 or older datasets  
> > > > (which might have different license).
> > > > 
> > > > In any case, further clarification might be useful. And thanks a lot  
> > > > for the effort.
> > > > 
> > > > Regards,  
> > > > Lukas
> > > > 
> > > > On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > 
> > > > > Hi Lukas,
> > > > > 
> > > > > hmm, I understood from the post I sent before, that the prebuilt trees  
> > > > > are not affected by license. And on the mail page of LemmaGen project (  
> > > > > [http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > > > > is
> > > > > 
> > > > > • it is free - open source licence for all the code included in the  
> > > > > project,  
> > > > > • multilingual support - currently 12 different languages included,
> > > > > 
> > > > > So I'm little bit confused now.
> > > > > 
> > > > > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons are  
> > > > > part of his lemmagen-lang.jar package).
> > > > > 
> > > > > Regards,  
> > > > > Vojta
> > > > > 
> > > > > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > > > > 
> > > > > > Hi Vojta,
> > > > > > 
> > > > > > I am not a layer but from my initial investigation of MULTEXT-East V4  
> > > > > > license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > > > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > > > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > > > > exploitation of any product or prototype product incorporating, using or  
> > > > > > based upon RESOURCES or any parts of RESOURCES."
> > > > > > 
> > > > > > Hopefully, I am just missing something. I feel a bit confused about  
> > > > > > the licensing though (but not saying this is your fault!).
> > > > > > 
> > > > > > Regards,  
> > > > > > Lukáš
> > > > > > 
> > > > > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > > 
> > > > > > > Hi Lukas,
> > > > > > > 
> > > > > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > > > > prebuilt trees are not ([http://lucene.472066.n3.nabbl](http://lucene.472066.n3.nabbl)  
> > > > > > > [e.com/JLemmaGen-project-td4097466.html](http://e.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > > > > )
> > > > > > > 
> > > > > > > Regards,  
> > > > > > > Vojta
> > > > > > > 
> > > > > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > 
> > > > > > > > Hi Vojta,
> > > > > > > > 
> > > > > > > > Very interesting. Do you think you can include license info for  
> > > > > > > > both the code and linguistic resources?
> > > > > > > > 
> > > > > > > > Regards,  
> > > > > > > > Lukáš  
> > > > > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)  
> > > > > > > > napsal(a):
> > > > > > > > 
> > > > > > > > > Hello,
> > > > > > > > > 
> > > > > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > > > > 
> > > > > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > > > > 
> > > > > > > > > If you are interested, source code is located at GitHub  
> > > > > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > > > > 
> > > > > > > > > Regards,  
> > > > > > > > > Vojta
> > > > > > > > > 
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**Author:** ![Michal\_Hlavac](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/michal_hlavac/32/1940_2.png) [@Michal\_Hlavac](https://discuss.elastic.co/u/Michal_Hlavac)\
**Post date:** [November 29, 2013, 10:00am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/12 "2013-11-29T10:00:53Z")

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Cau Lukas,

you are right, I'll ask them.

m.

On Wednesday, November 27, 2013 11:00:53 AM UTC+1, Lukáš Vlček wrote:

> Hi Michal,
> 
> this sounds like a good news.  
> Tough, I am still confused (sorry, please bear with me). We can eventually  
> take this discussion off list. The following are my concerns:
> 
> 1. Don't we need confirmation from MULTEXT-East license holder(s) instead  
> of LemmaGen author?
> 
> 2. When you say ".lem is not a dictionary" does it mean it is not a  
> "product" in terms of "[...] based upon RESOURCES or any parts of  
> RESOURCES"?
> 
> Just to make it clear, I am not asking about validity of LemmGen license  
> [in my opinion it might be questionable but it is not important], I am  
> questioning directly about license of the dictionaries and work based on  
> any parts of it.
> 
> Regards,  
> Lukáš
> 
> On Wed, Nov 27, 2013 at 10:25 AM, Michal Hlaváč \<hla...@hlavki.eu\<javascript:\>
> 
> > wrote:
> 
> > Hi Vojta & Lukas,
> > 
> > I understand your confusion and it's quite simple. All binaries are  
> > licensed under Apache License 2.0 including .lem binary files in  
> > lemmagen-lang.jar  
> > .lem file is java serialized rule tree for lemmatization and contains  
> > only some little fragments from original dictionary.  
> > This implies that .lem is not dictionary. I have confirmation from author  
> > of LemmaGen project about it.  
> > Dictionaries licensed by [http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt) are  
> > NOT part of project and are stored only on my local computer.  
> > I use them only to build .lem files. So result is, you can use all  
> > content of [Bitbucket](https://bitbucket.org/hlavki/jlemmagen) according to Apache  
> > License 2.0
> > 
> > If you will have any question, feel free to ask
> > 
> > thanks, miso
> > 
> > On Tuesday, November 26, 2013 1:46:03 PM UTC+1, Lukáš Vlček wrote:
> > 
> > > Vojta,
> > > 
> > > by @hlavki's email I meant [http://lucene.472066.n3](http://lucene.472066.n3).  
> > > [nabble.com/JLemmaGen-project-td4097466.html](http://nabble.com/JLemmaGen-project-td4097466.html)
> > > 
> > > On Tue, Nov 26, 2013 at 1:19 PM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > 
> > > > Yes, thats exactly why I'm confused right now. I didn't find @hlavki's  
> > > > mail, so I tried to ask for help on his Twitter account.
> > > > 
> > > > Thank you for the help.
> > > > 
> > > > Regards,  
> > > > Vojta
> > > > 
> > > > On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:
> > > > 
> > > > > Vojta,
> > > > > 
> > > > > based on what @hlavki says in his email it seems he prebuilt the data  
> > > > > himself and is not using those found in C# project ("I obtained also  
> > > > > licenced dictionaries to build rules tree for 15 languages. Dictionaries  
> > > > > are licenced, but prebuilded trees don't."). In which case I am not  
> > > > > sure this is a valid according the the license V4 of "RESOURCES" for any  
> > > > > other use than "Research Purposes".
> > > > > 
> > > > > Looking further on the C# implementation ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)  
> > > > > Software[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> > > > > it seems to me that they mostly refer to Multext-East V3 or older datasets  
> > > > > (which might have different license).
> > > > > 
> > > > > In any case, further clarification might be useful. And thanks a lot  
> > > > > for the effort.
> > > > > 
> > > > > Regards,  
> > > > > Lukas
> > > > > 
> > > > > On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > 
> > > > > > Hi Lukas,
> > > > > > 
> > > > > > hmm, I understood from the post I sent before, that the prebuilt  
> > > > > > trees are not affected by license. And on the mail page of LemmaGen project  
> > > > > > ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > > > > > is
> > > > > > 
> > > > > > • it is free - open source licence for all the code included in the  
> > > > > > project,  
> > > > > > • multilingual support - currently 12 different languages included,
> > > > > > 
> > > > > > So I'm little bit confused now.
> > > > > > 
> > > > > > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons  
> > > > > > are part of his lemmagen-lang.jar package).
> > > > > > 
> > > > > > Regards,  
> > > > > > Vojta
> > > > > > 
> > > > > > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > > > > > 
> > > > > > > Hi Vojta,
> > > > > > > 
> > > > > > > I am not a layer but from my initial investigation of MULTEXT-East  
> > > > > > > V4 license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > > > > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > > > > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > > > > > exploitation of any product or prototype product incorporating, using or  
> > > > > > > based upon RESOURCES or any parts of RESOURCES."
> > > > > > > 
> > > > > > > Hopefully, I am just missing something. I feel a bit confused about  
> > > > > > > the licensing though (but not saying this is your fault!).
> > > > > > > 
> > > > > > > Regards,  
> > > > > > > Lukáš
> > > > > > > 
> > > > > > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > > > 
> > > > > > > > Hi Lukas,
> > > > > > > > 
> > > > > > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > > > > > prebuilt trees are not ([http://lucene.472066.n3.nabbl](http://lucene.472066.n3.nabbl)  
> > > > > > > > [e.com/JLemmaGen-project-td4097466.html](http://e.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > > > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > > > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > > > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > > > > > )
> > > > > > > > 
> > > > > > > > Regards,  
> > > > > > > > Vojta
> > > > > > > > 
> > > > > > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > > 
> > > > > > > > > Hi Vojta,
> > > > > > > > > 
> > > > > > > > > Very interesting. Do you think you can include license info for  
> > > > > > > > > both the code and linguistic resources?
> > > > > > > > > 
> > > > > > > > > Regards,  
> > > > > > > > > Lukáš  
> > > > > > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)  
> > > > > > > > > napsal(a):
> > > > > > > > > 
> > > > > > > > > > Hello,
> > > > > > > > > > 
> > > > > > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > > > > > 
> > > > > > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Software/Version3](http://lemmatise.ijs.si/Software/Version3)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > > > > > 
> > > > > > > > > > If you are interested, source code is located at GitHub  
> > > > > > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > > > > > 
> > > > > > > > > > Regards,  
> > > > > > > > > > Vojta
> > > > > > > > > > 
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**Author:** ![Michal\_Hlavac](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/michal_hlavac/32/1940_2.png) [@Michal\_Hlavac](https://discuss.elastic.co/u/Michal_Hlavac)\
**Post date:** [December 2, 2013, 9:31am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/13 "2013-12-02T09:31:21Z")

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Cau Lukas,

unfortunately, you were right 🙂 As Tomaz from Dept. of Knowledge  
Technologies, Jozef Stefan Institute wrote:

_"the overall MULTEXT-East licence does indeed require only non-commercial  
use, even for derivatives. And there is no problem with the Slovene one."_

So, it means I have to exclude all .lem files from Apache License 2.0

sorry for confusion, m.

On Friday, November 29, 2013 11:00:53 AM UTC+1, Michal Hlaváč wrote:

> Cau Lukas,
> 
> you are right, I'll ask them.
> 
> m.
> 
> On Wednesday, November 27, 2013 11:00:53 AM UTC+1, Lukáš Vlček wrote:
> 
> > Hi Michal,
> > 
> > this sounds like a good news.  
> > Tough, I am still confused (sorry, please bear with me). We can  
> > eventually take this discussion off list. The following are my concerns:
> > 
> > 1. Don't we need confirmation from MULTEXT-East license holder(s) instead  
> > of LemmaGen author?
> > 
> > 2. When you say ".lem is not a dictionary" does it mean it is not a  
> > "product" in terms of "[...] based upon RESOURCES or any parts of  
> > RESOURCES"?
> > 
> > Just to make it clear, I am not asking about validity of LemmGen license  
> > [in my opinion it might be questionable but it is not important], I am  
> > questioning directly about license of the dictionaries and work based on  
> > any parts of it.
> > 
> > Regards,  
> > Lukáš
> > 
> > On Wed, Nov 27, 2013 at 10:25 AM, Michal Hlaváč [hla...@hlavki.eu](mailto:hla...@hlavki.eu) wrote:
> > 
> > > Hi Vojta & Lukas,
> > > 
> > > I understand your confusion and it's quite simple. All binaries are  
> > > licensed under Apache License 2.0 including .lem binary files in  
> > > lemmagen-lang.jar  
> > > .lem file is java serialized rule tree for lemmatization and contains  
> > > only some little fragments from original dictionary.  
> > > This implies that .lem is not dictionary. I have confirmation from  
> > > author of LemmaGen project about it.  
> > > Dictionaries licensed by [http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt) are  
> > > NOT part of project and are stored only on my local computer.  
> > > I use them only to build .lem files. So result is, you can use all  
> > > content of [Bitbucket](https://bitbucket.org/hlavki/jlemmagen) according to Apache  
> > > License 2.0
> > > 
> > > If you will have any question, feel free to ask
> > > 
> > > thanks, miso
> > > 
> > > On Tuesday, November 26, 2013 1:46:03 PM UTC+1, Lukáš Vlček wrote:
> > > 
> > > > Vojta,
> > > > 
> > > > by @hlavki's email I meant [http://lucene.472066.n3](http://lucene.472066.n3).  
> > > > [nabble.com/JLemmaGen-project-td4097466.html](http://nabble.com/JLemmaGen-project-td4097466.html)
> > > > 
> > > > On Tue, Nov 26, 2013 at 1:19 PM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > 
> > > > > Yes, thats exactly why I'm confused right now. I didn't find @hlavki's  
> > > > > mail, so I tried to ask for help on his Twitter account.
> > > > > 
> > > > > Thank you for the help.
> > > > > 
> > > > > Regards,  
> > > > > Vojta
> > > > > 
> > > > > On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:
> > > > > 
> > > > > > Vojta,
> > > > > > 
> > > > > > based on what @hlavki says in his email it seems he prebuilt the data  
> > > > > > himself and is not using those found in C# project ("I obtained also  
> > > > > > licenced dictionaries to build rules tree for 15 languages. Dictionaries  
> > > > > > are licenced, but prebuilded trees don't."). In which case I am not  
> > > > > > sure this is a valid according the the license V4 of "RESOURCES" for any  
> > > > > > other use than "Research Purposes".
> > > > > > 
> > > > > > Looking further on the C# implementation ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)  
> > > > > > Software[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> > > > > > it seems to me that they mostly refer to Multext-East V3 or older datasets  
> > > > > > (which might have different license).
> > > > > > 
> > > > > > In any case, further clarification might be useful. And thanks a lot  
> > > > > > for the effort.
> > > > > > 
> > > > > > Regards,  
> > > > > > Lukas
> > > > > > 
> > > > > > On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > > 
> > > > > > > Hi Lukas,
> > > > > > > 
> > > > > > > hmm, I understood from the post I sent before, that the prebuilt  
> > > > > > > trees are not affected by license. And on the mail page of LemmaGen project  
> > > > > > > ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > > > > > > is
> > > > > > > 
> > > > > > > • it is free - open source licence for all the code included in the  
> > > > > > > project,  
> > > > > > > • multilingual support - currently 12 different languages included,
> > > > > > > 
> > > > > > > So I'm little bit confused now.
> > > > > > > 
> > > > > > > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons  
> > > > > > > are part of his lemmagen-lang.jar package).
> > > > > > > 
> > > > > > > Regards,  
> > > > > > > Vojta
> > > > > > > 
> > > > > > > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > 
> > > > > > > > Hi Vojta,
> > > > > > > > 
> > > > > > > > I am not a layer but from my initial investigation of MULTEXT-East  
> > > > > > > > V4 license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > > > > > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > > > > > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > > > > > > exploitation of any product or prototype product incorporating, using or  
> > > > > > > > based upon RESOURCES or any parts of RESOURCES."
> > > > > > > > 
> > > > > > > > Hopefully, I am just missing something. I feel a bit confused about  
> > > > > > > > the licensing though (but not saying this is your fault!).
> > > > > > > > 
> > > > > > > > Regards,  
> > > > > > > > Lukáš
> > > > > > > > 
> > > > > > > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)wrote:
> > > > > > > > 
> > > > > > > > > Hi Lukas,
> > > > > > > > > 
> > > > > > > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > > > > > > prebuilt trees are not ([http://lucene.472066.n3.nabbl](http://lucene.472066.n3.nabbl)  
> > > > > > > > > [e.com/JLemmaGen-project-td4097466.html](http://e.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > > > > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > > > > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > > > > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > > > > > > )
> > > > > > > > > 
> > > > > > > > > Regards,  
> > > > > > > > > Vojta
> > > > > > > > > 
> > > > > > > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > > > 
> > > > > > > > > > Hi Vojta,
> > > > > > > > > > 
> > > > > > > > > > Very interesting. Do you think you can include license info for  
> > > > > > > > > > both the code and linguistic resources?
> > > > > > > > > > 
> > > > > > > > > > Regards,  
> > > > > > > > > > Lukáš  
> > > > > > > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)  
> > > > > > > > > > napsal(a):
> > > > > > > > > > 
> > > > > > > > > > > Hello,
> > > > > > > > > > > 
> > > > > > > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > > > > > > 
> > > > > > > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Soft](http://lemmatise.ijs.si/Soft)  
> > > > > > > > > > > ware/Version3[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > > > > > > 
> > > > > > > > > > > If you are interested, source code is located at GitHub  
> > > > > > > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > > > > > > 
> > > > > > > > > > > Regards,  
> > > > > > > > > > > Vojta
> > > > > > > > > > > 
> > > > > > > > > > > --  
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<div class="post-metadata">

**Author:** ![Lukas\_Vlcek1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas_vlcek1/32/819_2.png) [@Lukas\_Vlcek1](https://discuss.elastic.co/u/Lukas_Vlcek1)\
**Post date:** [December 2, 2013, 10:54am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/14 "2013-12-02T10:54:38Z")

</div>

Hmm... yea. That is sad. Thanks for getting this cleared out.  
I think MULTEXT-East had different license(s) in the past (even GNU) but  
unfortunately I see many interesting language packages (and especially  
dictionaries) from universities are not really open source (and Apache 2  
License) friendly. Not sure why, in the end of the day the research is  
funded from public taxes.

Regards,  
Lukas

On Mon, Dec 2, 2013 at 10:31 AM, Michal Hlaváč [hlavki@hlavki.eu](mailto:hlavki@hlavki.eu) wrote:

> Cau Lukas,
> 
> unfortunately, you were right 🙂 As Tomaz from Dept. of Knowledge  
> Technologies, Jozef Stefan Institute wrote:
> 
> \*"the overall MULTEXT-East licence does indeed require only non-commercial  
> use, even for derivatives. \*And there is no problem with the Slovene one.  
> _"_
> 
> So, it means I have to exclude all .lem files from Apache License 2.0
> 
> sorry for confusion, m.
> 
> On Friday, November 29, 2013 11:00:53 AM UTC+1, Michal Hlaváč wrote:
> 
> > Cau Lukas,
> > 
> > you are right, I'll ask them.
> > 
> > m.
> > 
> > On Wednesday, November 27, 2013 11:00:53 AM UTC+1, Lukáš Vlček wrote:
> > 
> > > Hi Michal,
> > > 
> > > this sounds like a good news.  
> > > Tough, I am still confused (sorry, please bear with me). We can  
> > > eventually take this discussion off list. The following are my concerns:
> > > 
> > > 1. Don't we need confirmation from MULTEXT-East license holder(s)  
> > > instead of LemmaGen author?
> > > 
> > > 2. When you say ".lem is not a dictionary" does it mean it is not a  
> > > "product" in terms of "[...] based upon RESOURCES or any parts of  
> > > RESOURCES"?
> > > 
> > > Just to make it clear, I am not asking about validity of LemmGen license  
> > > [in my opinion it might be questionable but it is not important], I am  
> > > questioning directly about license of the dictionaries and work based on  
> > > any parts of it.
> > > 
> > > Regards,  
> > > Lukáš
> > > 
> > > On Wed, Nov 27, 2013 at 10:25 AM, Michal Hlaváč [hla...@hlavki.eu](mailto:hla...@hlavki.eu)wrote:
> > > 
> > > > Hi Vojta & Lukas,
> > > > 
> > > > I understand your confusion and it's quite simple. All binaries are  
> > > > licensed under Apache License 2.0 including .lem binary files in  
> > > > lemmagen-lang.jar  
> > > > .lem file is java serialized rule tree for lemmatization and contains  
> > > > only some little fragments from original dictionary.  
> > > > This implies that .lem is not dictionary. I have confirmation from  
> > > > author of LemmaGen project about it.  
> > > > Dictionaries licensed by [http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt) are  
> > > > NOT part of project and are stored only on my local computer.  
> > > > I use them only to build .lem files. So result is, you can use all  
> > > > content of [Bitbucket](https://bitbucket.org/hlavki/jlemmagen) according to Apache  
> > > > License 2.0
> > > > 
> > > > If you will have any question, feel free to ask
> > > > 
> > > > thanks, miso
> > > > 
> > > > On Tuesday, November 26, 2013 1:46:03 PM UTC+1, Lukáš Vlček wrote:
> > > > 
> > > > > Vojta,
> > > > > 
> > > > > by @hlavki's email I meant [http://lucene.472066.n3](http://lucene.472066.n3).  
> > > > > [nabble.com/JLemmaGen-project-td4097466.html](http://nabble.com/JLemmaGen-project-td4097466.html)
> > > > > 
> > > > > On Tue, Nov 26, 2013 at 1:19 PM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > 
> > > > > > Yes, thats exactly why I'm confused right now. I didn't find  
> > > > > > @hlavki's mail, so I tried to ask for help on his Twitter account.
> > > > > > 
> > > > > > Thank you for the help.
> > > > > > 
> > > > > > Regards,  
> > > > > > Vojta
> > > > > > 
> > > > > > On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:
> > > > > > 
> > > > > > > Vojta,
> > > > > > > 
> > > > > > > based on what @hlavki says in his email it seems he prebuilt the  
> > > > > > > data himself and is not using those found in C# project ("I  
> > > > > > > obtained also licenced dictionaries to build rules tree for 15 languages.  
> > > > > > > Dictionaries are licenced, but prebuilded trees don't."). In which  
> > > > > > > case I am not sure this is a valid according the the license V4 of  
> > > > > > > "RESOURCES" for any other use than "Research Purposes".
> > > > > > > 
> > > > > > > Looking further on the C# implementation ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)  
> > > > > > > Software[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> > > > > > > it seems to me that they mostly refer to Multext-East V3 or older datasets  
> > > > > > > (which might have different license).
> > > > > > > 
> > > > > > > In any case, further clarification might be useful. And thanks a lot  
> > > > > > > for the effort.
> > > > > > > 
> > > > > > > Regards,  
> > > > > > > Lukas
> > > > > > > 
> > > > > > > On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > > > 
> > > > > > > > Hi Lukas,
> > > > > > > > 
> > > > > > > > hmm, I understood from the post I sent before, that the prebuilt  
> > > > > > > > trees are not affected by license. And on the mail page of LemmaGen project  
> > > > > > > > ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > > > > > > > is
> > > > > > > > 
> > > > > > > > • it is free - open source licence for all the code included in  
> > > > > > > > the project,  
> > > > > > > > • multilingual support - currently 12 different languages included,
> > > > > > > > 
> > > > > > > > So I'm little bit confused now.
> > > > > > > > 
> > > > > > > > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons  
> > > > > > > > are part of his lemmagen-lang.jar package).
> > > > > > > > 
> > > > > > > > Regards,  
> > > > > > > > Vojta
> > > > > > > > 
> > > > > > > > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > > 
> > > > > > > > > Hi Vojta,
> > > > > > > > > 
> > > > > > > > > I am not a layer but from my initial investigation of MULTEXT-East  
> > > > > > > > > V4 license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > > > > > > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > > > > > > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > > > > > > > exploitation of any product or prototype product incorporating, using or  
> > > > > > > > > based upon RESOURCES or any parts of RESOURCES."
> > > > > > > > > 
> > > > > > > > > Hopefully, I am just missing something. I feel a bit confused  
> > > > > > > > > about the licensing though (but not saying this is your fault!).
> > > > > > > > > 
> > > > > > > > > Regards,  
> > > > > > > > > Lukáš
> > > > > > > > > 
> > > > > > > > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)wrote:
> > > > > > > > > 
> > > > > > > > > > Hi Lukas,
> > > > > > > > > > 
> > > > > > > > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > > > > > > > prebuilt trees are not ([http://lucene.472066.n3.nabbl](http://lucene.472066.n3.nabbl)  
> > > > > > > > > > [e.com/JLemmaGen-project-td4097466.html](http://e.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > > > > > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > > > > > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > > > > > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > > > > > > > )
> > > > > > > > > > 
> > > > > > > > > > Regards,  
> > > > > > > > > > Vojta
> > > > > > > > > > 
> > > > > > > > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > > > > 
> > > > > > > > > > > Hi Vojta,
> > > > > > > > > > > 
> > > > > > > > > > > Very interesting. Do you think you can include license info for  
> > > > > > > > > > > both the code and linguistic resources?
> > > > > > > > > > > 
> > > > > > > > > > > Regards,  
> > > > > > > > > > > Lukáš  
> > > > > > > > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)  
> > > > > > > > > > > napsal(a):
> > > > > > > > > > > 
> > > > > > > > > > > > Hello,
> > > > > > > > > > > > 
> > > > > > > > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > > > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > > > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > > > > > > > 
> > > > > > > > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > > > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Soft](http://lemmatise.ijs.si/Soft)  
> > > > > > > > > > > > ware/Version3[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > > > > > > > 
> > > > > > > > > > > > If you are interested, source code is located at GitHub  
> > > > > > > > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > > > > > > > 
> > > > > > > > > > > > Regards,  
> > > > > > > > > > > > Vojta
> > > > > > > > > > > > 
> > > > > > > > > > > > --  
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<div class="post-metadata">

**Author:** ![vhyza1](https://avatars.discourse-cdn.com/v4/letter/v/aeb1de/32.png) [@vhyza1](https://discuss.elastic.co/u/vhyza1)\
**Post date:** [December 15, 2013, 6:27pm UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/15 "2013-12-15T18:27:46Z")

</div>

Ou, that's a pity. In that case I guess this plugin is pretty useless,  
because even for free dictionary download (located at  
[Index of /ME/download](http://nl.ijs.si/ME/download/)) there is README with following text:

"This directory contains the download files of the MULTEXT-East  
Resouces that are available for research use, according to the license  
agreement at [http://nl.ijs.si/ME/license/mteV4-license.html](http://nl.ijs.si/ME/license/mteV4-license.html)"

So, it seems to me, that is "academic sandbox" with no practical use (in  
real project) and with no ability to buy licence...I think its really  
weird, because as Lukas said, its funded using public taxes...

Anyway, thank you for making this clear.

On Monday, December 2, 2013 10:31:21 AM UTC+1, Michal Hlaváč wrote:

> Cau Lukas,
> 
> unfortunately, you were right 🙂 As Tomaz from Dept. of Knowledge  
> Technologies, Jozef Stefan Institute wrote:
> 
> \*"the overall MULTEXT-East licence does indeed require only non-commercial  
> use, even for derivatives. \*And there is no problem with the Slovene one.  
> _"_
> 
> So, it means I have to exclude all .lem files from Apache License 2.0
> 
> sorry for confusion, m.
> 
> On Friday, November 29, 2013 11:00:53 AM UTC+1, Michal Hlaváč wrote:
> 
> > Cau Lukas,
> > 
> > you are right, I'll ask them.
> > 
> > m.
> > 
> > On Wednesday, November 27, 2013 11:00:53 AM UTC+1, Lukáš Vlček wrote:
> > 
> > > Hi Michal,
> > > 
> > > this sounds like a good news.  
> > > Tough, I am still confused (sorry, please bear with me). We can  
> > > eventually take this discussion off list. The following are my concerns:
> > > 
> > > 1. Don't we need confirmation from MULTEXT-East license holder(s)  
> > > instead of LemmaGen author?
> > > 
> > > 2. When you say ".lem is not a dictionary" does it mean it is not a  
> > > "product" in terms of "[...] based upon RESOURCES or any parts of  
> > > RESOURCES"?
> > > 
> > > Just to make it clear, I am not asking about validity of LemmGen license  
> > > [in my opinion it might be questionable but it is not important], I am  
> > > questioning directly about license of the dictionaries and work based on  
> > > any parts of it.
> > > 
> > > Regards,  
> > > Lukáš
> > > 
> > > On Wed, Nov 27, 2013 at 10:25 AM, Michal Hlaváč [hla...@hlavki.eu](mailto:hla...@hlavki.eu)wrote:
> > > 
> > > > Hi Vojta & Lukas,
> > > > 
> > > > I understand your confusion and it's quite simple. All binaries are  
> > > > licensed under Apache License 2.0 including .lem binary files in  
> > > > lemmagen-lang.jar  
> > > > .lem file is java serialized rule tree for lemmatization and contains  
> > > > only some little fragments from original dictionary.  
> > > > This implies that .lem is not dictionary. I have confirmation from  
> > > > author of LemmaGen project about it.  
> > > > Dictionaries licensed by [http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt) are  
> > > > NOT part of project and are stored only on my local computer.  
> > > > I use them only to build .lem files. So result is, you can use all  
> > > > content of [Bitbucket](https://bitbucket.org/hlavki/jlemmagen) according to Apache  
> > > > License 2.0
> > > > 
> > > > If you will have any question, feel free to ask
> > > > 
> > > > thanks, miso
> > > > 
> > > > On Tuesday, November 26, 2013 1:46:03 PM UTC+1, Lukáš Vlček wrote:
> > > > 
> > > > > Vojta,
> > > > > 
> > > > > by @hlavki's email I meant [http://lucene.472066.n3](http://lucene.472066.n3).  
> > > > > [nabble.com/JLemmaGen-project-td4097466.html](http://nabble.com/JLemmaGen-project-td4097466.html)
> > > > > 
> > > > > On Tue, Nov 26, 2013 at 1:19 PM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > 
> > > > > > Yes, thats exactly why I'm confused right now. I didn't find  
> > > > > > @hlavki's mail, so I tried to ask for help on his Twitter account.
> > > > > > 
> > > > > > Thank you for the help.
> > > > > > 
> > > > > > Regards,  
> > > > > > Vojta
> > > > > > 
> > > > > > On Tuesday, November 26, 2013 11:59:41 AM UTC+1, Lukáš Vlček wrote:
> > > > > > 
> > > > > > > Vojta,
> > > > > > > 
> > > > > > > based on what @hlavki says in his email it seems he prebuilt the  
> > > > > > > data himself and is not using those found in C# project ("I  
> > > > > > > obtained also licenced dictionaries to build rules tree for 15 languages.  
> > > > > > > Dictionaries are licenced, but prebuilded trees don't."). In which  
> > > > > > > case I am not sure this is a valid according the the license V4 of  
> > > > > > > "RESOURCES" for any other use than "Research Purposes".
> > > > > > > 
> > > > > > > Looking further on the C# implementation ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)  
> > > > > > > Software[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware&sa=D&sntz=1&usg=AFQjCNFQA5dLuwbv13lQxSq1HhflSFd3xQ))  
> > > > > > > it seems to me that they mostly refer to Multext-East V3 or older datasets  
> > > > > > > (which might have different license).
> > > > > > > 
> > > > > > > In any case, further clarification might be useful. And thanks a lot  
> > > > > > > for the effort.
> > > > > > > 
> > > > > > > Regards,  
> > > > > > > Lukas
> > > > > > > 
> > > > > > > On Tue, Nov 26, 2013 at 11:22 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com) wrote:
> > > > > > > 
> > > > > > > > Hi Lukas,
> > > > > > > > 
> > > > > > > > hmm, I understood from the post I sent before, that the prebuilt  
> > > > > > > > trees are not affected by license. And on the mail page of LemmaGen project  
> > > > > > > > ([http://lemmatise.ijs.si/](http://lemmatise.ijs.si/)[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2F&sa=D&sntz=1&usg=AFQjCNHjzKSH2ZIVLNxScUwZAO19GLcfQA))  
> > > > > > > > is
> > > > > > > > 
> > > > > > > > • it is free - open source licence for all the code included in  
> > > > > > > > the project,  
> > > > > > > > • multilingual support - currently 12 different languages included,
> > > > > > > > 
> > > > > > > > So I'm little bit confused now.
> > > > > > > > 
> > > > > > > > Anyway I'll try to write email to Michal Hlaváč (prebuilt lexicons  
> > > > > > > > are part of his lemmagen-lang.jar package).
> > > > > > > > 
> > > > > > > > Regards,  
> > > > > > > > Vojta
> > > > > > > > 
> > > > > > > > On Tuesday, November 26, 2013 10:49:02 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > > 
> > > > > > > > > Hi Vojta,
> > > > > > > > > 
> > > > > > > > > I am not a layer but from my initial investigation of MULTEXT-East  
> > > > > > > > > V4 license ([http://nl.ijs.si/ME/V4/mteV4-licence.txt](http://nl.ijs.si/ME/V4/mteV4-licence.txt)[http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ](http://www.google.com/url?q=http%3A%2F%2Fnl.ijs.si%2FME%2FV4%2FmteV4-licence.txt&sa=D&sntz=1&usg=AFQjCNHHrDWmY7Y0nF1UiCvDfG46OoKRxQ))  
> > > > > > > > > it sounded as if any work built on top of "RESOURCES" could be used for  
> > > > > > > > > "Research Purpose" only and "[...] excludes the development or commercial  
> > > > > > > > > exploitation of any product or prototype product incorporating, using or  
> > > > > > > > > based upon RESOURCES or any parts of RESOURCES."
> > > > > > > > > 
> > > > > > > > > Hopefully, I am just missing something. I feel a bit confused  
> > > > > > > > > about the licensing though (but not saying this is your fault!).
> > > > > > > > > 
> > > > > > > > > Regards,  
> > > > > > > > > Lukáš
> > > > > > > > > 
> > > > > > > > > On Tue, Nov 26, 2013 at 10:02 AM, vhyza [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)wrote:
> > > > > > > > > 
> > > > > > > > > > Hi Lukas,
> > > > > > > > > > 
> > > > > > > > > > according to the jLemmaGen author, dictionaries are licensed, but  
> > > > > > > > > > prebuilt trees are not ([http://lucene.472066.n3.nabbl](http://lucene.472066.n3.nabbl)  
> > > > > > > > > > [e.com/JLemmaGen-project-td4097466.html](http://e.com/JLemmaGen-project-td4097466.html)[http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg](http://www.google.com/url?q=http%3A%2F%2Flucene.472066.n3.nabble.com%2FJLemmaGen-project-td4097466.html&sa=D&sntz=1&usg=AFQjCNG9Slni8XEbwJomTdnIaF3skhe4qg)).  
> > > > > > > > > > So I guess whole plugin can be licensed under Apache 2 license (  
> > > > > > > > > > [Updated for elasicsearch 8.6.1 · vhyza/elasticsearch-analysis-lemmagen@1411478 · GitHub](https://github.com/vhyza/elasticsearch-analysis-lemmagen/commit/)  
> > > > > > > > > > 144f4490493c9d973683f6a611acb7bdfbee15cc[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen%2Fcommit%2F144f4490493c9d973683f6a611acb7bdfbee15cc&sa=D&sntz=1&usg=AFQjCNHOKjDTgRO0f2qgM4IAqiFHXzbSIw)  
> > > > > > > > > > )
> > > > > > > > > > 
> > > > > > > > > > Regards,  
> > > > > > > > > > Vojta
> > > > > > > > > > 
> > > > > > > > > > On Tuesday, November 26, 2013 8:37:50 AM UTC+1, Lukáš Vlček wrote:
> > > > > > > > > > 
> > > > > > > > > > > Hi Vojta,
> > > > > > > > > > > 
> > > > > > > > > > > Very interesting. Do you think you can include license info for  
> > > > > > > > > > > both the code and linguistic resources?
> > > > > > > > > > > 
> > > > > > > > > > > Regards,  
> > > > > > > > > > > Lukáš  
> > > > > > > > > > > Dne 25.11.2013 22:04 "Vojtech Hyza" [hyza.v...@gmail.com](mailto:hyza.v...@gmail.com)  
> > > > > > > > > > > napsal(a):
> > > > > > > > > > > 
> > > > > > > > > > > > Hello,
> > > > > > > > > > > > 
> > > > > > > > > > > > I wrote plugin which provides jLemmaGen (  
> > > > > > > > > > > > [Bitbucket](https://bitbucket.org/hlavki/jlemmagen)[https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg](https://www.google.com/url?q=https%3A%2F%2Fbitbucket.org%2Fhlavki%2Fjlemmagen&sa=D&sntz=1&usg=AFQjCNEhai9tb0up5-WAOpmGFjtuicqGrg))  
> > > > > > > > > > > > lemmatizer with 14 prebuilt European lexicons.
> > > > > > > > > > > > 
> > > > > > > > > > > > jLemmaGen is Java implementation of LemmaGen (Multilingual Open  
> > > > > > > > > > > > Source Lemmatisation) - [http://lemmatise.ijs.si/Soft](http://lemmatise.ijs.si/Soft)  
> > > > > > > > > > > > ware/Version3[http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw](http://www.google.com/url?q=http%3A%2F%2Flemmatise.ijs.si%2FSoftware%2FVersion3&sa=D&sntz=1&usg=AFQjCNE-hO-oJoFYEcknXhybrZO2McEsEw)
> > > > > > > > > > > > 
> > > > > > > > > > > > If you are interested, source code is located at GitHub  
> > > > > > > > > > > > [GitHub - vhyza/elasticsearch-analysis-lemmagen: Elasticsearch lemmatizer for 15 languages](https://github.com/vhyza/elasticsearch-analysis-lemmagen)[https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg](https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fvhyza%2Felasticsearch-analysis-lemmagen&sa=D&sntz=1&usg=AFQjCNE28TXXPDe2847oZcxduUSuUnJWAg)
> > > > > > > > > > > > 
> > > > > > > > > > > > Regards,  
> > > > > > > > > > > > Vojta
> > > > > > > > > > > > 
> > > > > > > > > > > > --  
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> > > > > > > > > > > > 
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> > > > > > > > > > > > ps/opt\_out.
> > > > > > > > > > > 
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> > > > > > > > > > > Google Groups "elasticsearch" group.  
> > > > > > > > > > > To unsubscribe from this group and stop receiving emails from it,  
> > > > > > > > > > > send an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com).  
> > > > > > > > > > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out).
> > > > > > > > > 
> > > > > > > > > --  
> > > > > > > > > You received this message because you are subscribed to the Google  
> > > > > > > > > Groups "elasticsearch" group.  
> > > > > > > > > To unsubscribe from this group and stop receiving emails from it,  
> > > > > > > > > send an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com).  
> > > > > > > > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out).
> > > > > > > 
> > > > > > > --  
> > > > > > > You received this message because you are subscribed to the Google  
> > > > > > > Groups "elasticsearch" group.  
> > > > > > > To unsubscribe from this group and stop receiving emails from it,  
> > > > > > > send an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com).  
> > > > > > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out).
> > > > > 
> > > > > --  
> > > > > You received this message because you are subscribed to the Google  
> > > > > Groups "elasticsearch" group.  
> > > > > To unsubscribe from this group and stop receiving emails from it, send  
> > > > > an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com).  
> > > > > To view this discussion on the web visit  
> > > > > [https://groups.google.com/d/msgid/elasticsearch/8ecf60f5-6f21-4710-8904-6d2871c40dd4%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/8ecf60f5-6f21-4710-8904-6d2871c40dd4%40googlegroups.com)  
> > > > > .
> > > > 
> > > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out).

--  
You received this message because you are subscribed to the Google Groups "elasticsearch" group.  
To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com).  
To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/a803c9cd-d1d3-4ae3-9daa-081d620f285a%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a803c9cd-d1d3-4ae3-9daa-081d620f285a%40googlegroups.com).  
For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out).

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 2:01am UTC](https://discuss.elastic.co/t/ann-lemmagen-analysis-for-elasticsearch-plugin/14585/16 "2017-07-06T02:01:09Z")

</div>


