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elasticsearchstemmingsearchkickelasticsearch-analyzers

Searchkick stemming

Using searchkick and see that a search for "animals" is returning results for "anime" because of their stem "anim". Does anyone have any suggestions on how to improve these results?

I see the in docs you can do something like

exclude_queries = {
  "animals" => ["anime"],
}

Product.search query, exclude: exclude_queries[query]

But it seems like a lot of work to keep a running list for all of the bad ones like this.

Wondering if I need to change the stemmer?

Solution

  • I might try something like this. https://www.elastic.co/guide/en/elasticsearch/reference/master/mixing-exact-search-with-stemming.html

    Update

    Ankane at searchkick gem was kind enough to add a feature to help with this. As of 4.4.1 you can do this.

    class Product < ApplicationRecord
  searchkick stemmer_override: ["anime => anime"]
end

    This will prevent "anime" from being stemmed to "anim". So it won't show up in the "animals" search results.