benwtrent commented on PR #14085:
URL: https://github.com/apache/lucene/pull/14085#issuecomment-2578689141

   
https://github.com/apache/lucene/compare/main...benwtrent:lucene:acorn_search?expand=1
   
   Here are two of my ideas:
   
    - We only go to 2-hop if a percentage of the current candidate's neighbors 
are filtered out
    - We oversample by a percentage the total candidates considered. 
   
   Tweaking the settings might take some steps. 
   
   I also think there are things to do around:
   
    - Considering jumping up the layer and going to a different entry point if 
we get "far away" from the current entry point
    - More intelligently choosing the candidates for two-hop
    - Consider three-hop on very restrictive filters (e.g. we don't satiate our 
expanded set, we should look one layer more out)
   


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