# Stemming acronyms ending in "s"; keyword marker token filter; minimal english stemmer **URL:** \ **Category:** Elasticsearch\ **Created:** [January 22, 2014, 4:10pm UTC](https://discuss.elastic.co/t/stemming-acronyms-ending-in-s-keyword-marker-token-filter-minimal-english-stemmer/15362 "2014-01-22T16:10:24Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![loren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/loren/32/44942_2.png) [@loren](https://discuss.elastic.co/u/loren)\ **Post date:** [January 22, 2014, 4:10pm UTC](https://discuss.elastic.co/t/stemming-acronyms-ending-in-s-keyword-marker-token-filter-minimal-english-stemmer/15362/1 "2014-01-22T16:10:24Z")
Using the minimal\_english stemmer[http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-stemmer-tokenfilter.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-stemmer-tokenfilter.html), acronym tokens like "irs" and "nps" get stemmed to "ir" and "np". I can use the keyword marker token filter[http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.html)to specify a list of acronyms to protect, but I do not know them all in advance so I will be constantly tweaking the list and reindexing. Ideally, I would like to be able to either tell the keyword marker to protect tokens 1-4 characters in length, or tell the minimal english stemmer to ignore tokens shorter than 5 characters. Are either of those options possible? -- 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/e385b457-6eed-4a98-975d-9cf19375c39f%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e385b457-6eed-4a98-975d-9cf19375c39f%40googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![jpountz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jpountz/32/45836_2.png) [@jpountz](https://discuss.elastic.co/u/jpountz)\ **Post date:** [January 23, 2014, 9:51pm UTC](https://discuss.elastic.co/t/stemming-acronyms-ending-in-s-keyword-marker-token-filter-minimal-english-stemmer/15362/2 "2014-01-23T21:51:46Z")
I think it would be nice to support protecting tokens based on their length. Maybe you can open an issue about it? On Wed, Jan 22, 2014 at 5:10 PM, Loren [loren@siebert.org](mailto:loren@siebert.org) wrote: > Using the minimal\_english stemmer[http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-stemmer-tokenfilter.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-stemmer-tokenfilter.html), > acronym tokens like "irs" and "nps" get stemmed to "ir" and "np". I can use > the keyword marker token filter[http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.html)to specify a list of acronyms to protect, but I do not know them all in > advance so I will be constantly tweaking the list and reindexing. > > Ideally, I would like to be able to either tell the keyword marker to > protect tokens 1-4 characters in length, or tell the minimal english > stemmer to ignore tokens shorter than 5 characters. > > Are either of those options possible? > > -- > 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/e385b457-6eed-4a98-975d-9cf19375c39f%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e385b457-6eed-4a98-975d-9cf19375c39f%40googlegroups.com) > . > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- Adrien Grand -- 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/CAL6Z4j7avbq%2B9f2O1HxMzkwDgEUQXj6%2BThVJs3dCSuQObPZFgA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAL6Z4j7avbq%2B9f2O1HxMzkwDgEUQXj6%2BThVJs3dCSuQObPZFgA%40mail.gmail.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![loren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/loren/32/44942_2.png) [@loren](https://discuss.elastic.co/u/loren)\ **Post date:** [January 23, 2014, 10:01pm UTC](https://discuss.elastic.co/t/stemming-acronyms-ending-in-s-keyword-marker-token-filter-minimal-english-stemmer/15362/3 "2014-01-23T22:01:06Z")
Done! > > > I would like to be able to tell the keyword marker to protect tokens 1-4 charact…ers in length, or tell the minimal english stemmer to ignore tokens shorter than 5 characters. > > Perhaps the more generic thing to have would be a Minimum Length Keyword Marker that could go in front of the other filters. > > Based on discussion at https://groups.google.com/forum/#!msg/elasticsearch/uFlKWq2HvQk/mM8KjaItPH0J On Thursday, January 23, 2014 1:51:46 PM UTC-8, Adrien Grand wrote: > I think it would be nice to support protecting tokens based on their > length. Maybe you can open an issue about it? > > On Wed, Jan 22, 2014 at 5:10 PM, Loren \<[lo...@siebert.org](mailto:lo...@siebert.org) \\>wrote: > > > Using the minimal\_english stemmer[http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-stemmer-tokenfilter.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-stemmer-tokenfilter.html), > > acronym tokens like "irs" and "nps" get stemmed to "ir" and "np". I can use > > the keyword marker token filter[http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.html)to specify a list of acronyms to protect, but I do not know them all in > > advance so I will be constantly tweaking the list and reindexing. > > > > Ideally, I would like to be able to either tell the keyword marker to > > protect tokens 1-4 characters in length, or tell the minimal english > > stemmer to ignore tokens shorter than 5 characters. > > > > Are either of those options possible? > > > > -- > > 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/e385b457-6eed-4a98-975d-9cf19375c39f%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e385b457-6eed-4a98-975d-9cf19375c39f%40googlegroups.com) > > . > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). > > -- > Adrien Grand -- 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/cf0b1c2c-55c6-4bc7-a662-752457de7e61%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/cf0b1c2c-55c6-4bc7-a662-752457de7e61%40googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**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, 1:55am UTC](https://discuss.elastic.co/t/stemming-acronyms-ending-in-s-keyword-marker-token-filter-minimal-english-stemmer/15362/4 "2017-07-06T01:55:05Z")