# RSLP Stemmer (Brazilian Portuguese) plugin 1.0.0

**URL:** <https://discuss.elastic.co/t/rslp-stemmer-brazilian-portuguese-plugin-1-0-0/33905>\
**Category:** Community Ecosystem\
**Created:** [November 5, 2015, 6:14pm UTC](https://discuss.elastic.co/t/rslp-stemmer-brazilian-portuguese-plugin-1-0-0/33905 "2015-11-05T18:14:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![anaelcarvalho](https://avatars.discourse-cdn.com/v4/letter/a/b9bd4f/32.png) [@anaelcarvalho](https://discuss.elastic.co/u/anaelcarvalho)\
**Post date:** [November 5, 2015, 6:14pm UTC](https://discuss.elastic.co/t/rslp-stemmer-brazilian-portuguese-plugin-1-0-0/33905/1 "2015-11-05T18:14:50Z")

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This is an implementation of the RSLP stemmer algorithm as described in ["A Stemming Algorithm for the Portuguese Language" by Orengo, V.M. and Huyck, C](http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=989755).

> **[anaelcarvalho/elasticsearch-analysis-rslp](https://github.com/anaelcarvalho/elasticsearch-analysis-rslp)**
>
> elasticsearch-analysis-rslp - RSLP stemmer plugin for Elasticsearch

A new token filter named 'br\_rslp' is made available for use with custom filters and analyzers.

Version 1.0.0 requires Elasticsearch 2.0.0.

Sample configuration:

```
index:
  analysis:
    filter:
      my_stemmer:
        type: br_rslp

```

Feedback is very welcome - thanks!

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**Author:** ![diego.bernardes](https://avatars.discourse-cdn.com/v4/letter/d/a88e4f/32.png) [@diego.bernardes](https://discuss.elastic.co/u/diego.bernardes)\
**Post date:** [November 23, 2015, 9:15pm UTC](https://discuss.elastic.co/t/rslp-stemmer-brazilian-portuguese-plugin-1-0-0/33905/2 "2015-11-23T21:15:05Z")

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Nice.

Whats the main difference from the actual stemmer?  
I'm having some problems with the default stemmer, words like 'capinha' get stemmed to 'capinh' instead of 'cap', this is giving me false positives, this plugin solve this problems?

* * *

just tested the plugin, it works very well, solved my problem, much better than the lucene stemmer.  
thanks!

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<div class="post-metadata">

**Author:** ![anaelcarvalho](https://avatars.discourse-cdn.com/v4/letter/a/b9bd4f/32.png) [@anaelcarvalho](https://discuss.elastic.co/u/anaelcarvalho)\
**Post date:** [November 9, 2016, 1:59pm UTC](https://discuss.elastic.co/t/rslp-stemmer-brazilian-portuguese-plugin-1-0-0/33905/3 "2016-11-09T13:59:05Z")

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Updated to version 2.0.0 for compatibility with ES 5.0.

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**Author:** ![PtkFerraro](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ptkferraro/32/18892_2.png) [@PtkFerraro](https://discuss.elastic.co/u/PtkFerraro)\
**Post date:** [June 7, 2017, 8:00pm UTC](https://discuss.elastic.co/t/rslp-stemmer-brazilian-portuguese-plugin-1-0-0/33905/4 "2017-06-07T20:00:05Z")

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Hi. In elastic 5.4 it´s not installing. cheers.

What is a good setup for Pt-Br search? Analysers, filters, etc...

cheers

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [June 23, 2020, 6:03am UTC](https://discuss.elastic.co/t/rslp-stemmer-brazilian-portuguese-plugin-1-0-0/33905/5 "2020-06-23T06:03:51Z")

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