Stemming acronyms ending in "s"; keyword marker token filter; minimal english stemmer

Elastic Stack Elasticsearch
1

Using the minimal_english stemmerhttp://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 filterhttp://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.htmlto 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?

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2

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 wrote:

Using the minimal_english stemmerhttp://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 filterhttp://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.htmlto 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?

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Adrien Grand

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3

Done!

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 <javascript:>>wrote:

Using the minimal_english stemmerhttp://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 filterhttp://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-keyword-marker-tokenfilter.htmlto 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?

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Adrien Grand

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