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Elastic's Rank_Features Equivalent in Typesense

TLDR George asked if Typesense has an equivalent to Elastic's rank_features for sparse maps. Kishore Nallan confirmed that there's no equivalent and no current plans to add it.

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Apr 29, 2023 (5 months ago)

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George

09:55 AM

Hi there! Is there an equivalent to Elastic's rank_features in typesense? Vector search appears to be similar but it's a dense array, and I'm looking to index/query sparse maps. https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-rank-feature-query.html

May 01, 2023 (5 months ago)

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Kishore Nallan

04:36 PM

There's no equivalent in Typesense.

George

04:37 PM

Ah thanks for the response 👍. Any plans for such a thing? Or a bit to esoteric?

Kishore Nallan

04:42 PM

Correct me if I am wrong. What that feature does is allow you to come up with a boosting score that uses specific field values in the documents. Almost like sum up the field values (based on boost fraction) and use that final value for sorting?

George

05:57 PM

That's right yeah. You might store a tag list as a string field and just search for its presence, but with this you can give weights to each tag to customise its relevance score to the query, so its a little more than just boosting.

May 03, 2023 (5 months ago)

Kishore Nallan

02:49 PM

Thanks for the clarification. We don't have any current plans on adding that. We typically go by user demand, so things can change if we see a request come up often enough.

George

03:01 PM

Ok thanks, will have to stick with elastic for now 👍

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