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  1. Solr
  2. SOLR-16857

Efficiently rerank collapsed queries with vector queries

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    • New Feature
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
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    Description

      E-commerce catalogs often use collapse to collapse product records within a group. For example a particular couch might come in different colors or fabrics. So a single couch might have a large number of slightly different records within the group.

      When reranking a collapsed query with a vector query the vector query will select the top K matches based on the vector. The top K could include multiple records from within the same product group although only one group head was selected from the group. This will pollute the top K results with lots of duplicate records of no value.

      The solution is to devise a filter that limits the vector query to searching only the selected group heads from the collapse.

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            jbernste Joel Bernstein
            jbernste Joel Bernstein
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              Created:
              Updated: