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#16526 PR: [New feature] Add an adaptive filtered strategy PathSeer for Lucene filtered HNSW search

15.8 minutes ago 4 comments 0 votes 0 watches benwtrent, github-actions[bot], jpountz, lizhiyuell, mikemccand, msokolov

Description This PR introduces PathSeer, an adaptive filtered HNSW search strategy, for ... . # Motivation Existing filtered HNSW strategies can perform very differently across workloads.

lizhiyuell 15.8 minutes ago:	Hi @benwtrent @mikemccand @jpountz, I hope you don’t mind the direct ping. I wanted to loop you in as well, since this PR touches filtered HNSW/vector search behavior. If you have a chance, I’d really appreciate it if you could join the discussion and help take a ...
lizhiyuell 6 days ago:	@msokolov Thanks for your interest in PathSeer! Over the past few weeks, we have continued evolving PathSeer’s search logic and improving its ... Based on the evaluations and discussions during our Weaviate integration, we made two improvements ...

#16675: CSOAI — Lucene AI governance search engine

3.9 hours ago 0 comments 0 votes 0 watches CSOAI-ORG

https://github.com/CSOAI-ORG/gspc-harness | Ed25519 | signed receipts | nicholas@csoai.org

#16674: Can we speed up centroid calculation in the OSQ vector format?

5.5 hours ago 0 comments 0 votes 0 watches kaivalnp

Description In the OSQ based vector format, we recalculate centroids on merge when there are ... If there aren't any deletes, the merged centroid is simply a weighted average of segment-level ... I wonder if we can re-use the information of the previous centroid, even when there are deletes?

#16268 PR: Use the doc-values skip index to skip per-doc value lookups in LongRangeFacetCutter

7.5 hours ago 53 comments 0 votes 0 watches epotyom, github-actions[bot], slow-J, stefanvodita

Resolves https://github.com/apache/lucene/issues/16249 Implementation heavily inspired by ... Range faceting (in the sandbox module -LongRangeFacetCutter) currently reads the doc-values value ... When the faceted field is single-valued, we can use a doc-values skip index.

stefanvodita 11.4 hours ago:	Cool idea and nice improvement! Do we know why BrowseIDOvlpRangeFacets QPS went down?
github-actions[bot] 10.3 days ago:	This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!

#16542 PR: GITHUB#15239: Honor exhaustive ScoreMode in BatchScoreBulkScorer

7.5 hours ago 35 comments 0 votes 0 watches NextbrickInc, github-actions[bot], hossman, jimczi

# Summary- Fixes 15239. - Make BatchScoreBulkScorer honor exhaustive ScoreMode before using a ... /gradlew :lucene:core:test --tests org.apache.lucene.search.TestMultiCollector (15 tests)- [x] ./gradlew :lucene:core:checkGoogleJavaFormat

github-actions[bot] 7.5 hours ago:	This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!
NextbrickInc 16.2 days ago:	<img width="939" height="390" alt="Screenshot 2026-08-29 at 8 31 08 PM" src="https://github.com/ ... Thank you.

#16673 PR: Fix all-docs bit range in TestIndexedDISI

7.7 hours ago 0 comments 0 votes 0 watches LuXugang, github-actions[bot]

Description testAllDocs chooses maxDoc in [1, 100000] but calls set.set(1, maxDoc). When maxDoc is 1, this would trigger assertion

#16567 PR: Add ivfaster: a segment-lifecycle-aware IVF vector codec for the sandbox

8.4 hours ago 3 comments 0 votes 0 watches RKSPD, github-actions[bot], gsmiller, msokolov

IVFaster: a segment-lifecycle-aware IVF vector codec (sandbox) It's no secret that vector search ... Segments are immutable and merge constantly, and both properties are cheap for an inverted index ... There have been attempts to improve this behavior, namely IncrementalHnswGraphMerger, which adopts ...

gsmiller 17.4 days ago:	Disclaimer: Rikhil and I work together and started a conversation about this earlier today, but I ... A property that really excites me about IVF is that docIDs can be traversed in monotonically ... I find this compelling since it means docs could potentially be evaluated doc-at-a-time along with ...
RKSPD 18.6 days ago:	> exciting! the numbers you shared look compelling. Can you address the failing checks?

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