Tweak search algorithm for more relevant results #508
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Also, please review/test this for merging into core: https://github.com/10up/elasticpress-weight-recent |
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The search tweaks here look good (we've actually had to filter fuzziness down to one on client sites for the same reasons as you state above). Tested with wp_test content and a bit more and it all seems a bit more accurate now with this new tweak (I can actually find my last name mispelled "Weigman" without issue). I think this is fine to merge to core when you're ready. |
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This PR is not ready for merge but rather review. @allan23 @ChrisWiegman @lukaspawlik @dkotter @AaronHolbrook
Here are the proposed changes:
operator => 'and'tomulti_matchclause. Right now any document containing ANY of the search terms returns a match with a 2x boost. Let's only give the 2x boost to docs that contain ALL the terms.multi_matchquery of typephrase. This clause gives a 4x boost to documents containing the terms exactly as is in the EXACT order.P.S. If anyone wants a cool project, we need a way to unit test relevancy accuracy.