kaivalnp commented on PR #12679:
URL: https://github.com/apache/lucene/pull/12679#issuecomment-1769235109

   Thanks for running this @benwtrent!
   
   I just had a couple of questions:
   1. What was your baseline in the test? If the baseline / goal is to "get the 
K-Nearest Neighbors", then the threshold-based search is not the best way to 
achieve it. I believe the true baseline should be *all* vectors *above* the 
score threshold
   2. If the baseline is KNN, we should at least post-filter results below the 
threshold. The threshold-based search will never be able to find results below 
the `resultSimilarity`, and it may not be a fair comparison
   
   As I'm writing this, I see your comment. I'll post my setup in a while


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