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Update rescoring explanation#387

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g-despot wants to merge 4 commits into
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quantization-note
Open

Update rescoring explanation#387
g-despot wants to merge 4 commits into
mainfrom
quantization-note

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@g-despot g-despot commented Apr 7, 2026

What's being changed:

  • Reworked the over-fetching / re-scoring section on the vector quantization concept page: split into configurable (rescoreLimit) vs automatic re-scoring, grouped quantizers correctly by index type.
  • Clarified that SQ and RQ expose rescoreLimit on HNSW; RQ and BQ expose it on flat; PQ (and BQ on HNSW) re-score automatically with no rescoreLimit.
  • Updated the matching rescoring explanation in the compression starter guide.
  • Corrected the rescoreLimit defaults in the SQ/RQ/BQ parameter tables: SQ 20, RQ 20/512 on HNSW (-1 on flat), BQ -1 (flat-only) — and explained what the -1 flat default does.

Type of change:

  • Documentation content updates (non-breaking change to fix/update documentation )

How has this been tested?

  • Local build - the site works as expected when running yarn start

@g-despot g-despot requested a review from Dabz April 7, 2026 12:54
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g-despot added 3 commits May 31, 2026 18:36
SQ defaults to 20 and RQ to 20/512 on HNSW (not -1, which is the flat
sentinel). Clarify what the -1 flat default does, and note that BQ
rescoreLimit only applies to flat indexes.
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