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#16526 PR: [New feature] Add an adaptive filtered strategy PathSeer for Lucene filtered HNSW search
20.4 minutes ago  3 comments  0 votes  0 watches  github-actions[bot], lizhiyuell, 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 20.5 minutes 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 ...
    github-actions[bot] 4.4 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!

#16212 PR: Fix concurrent modification in LRUQueryCache.cleanUp()
8.8 hours ago  26 comments  0 votes  0 watches  benwtrent, github-actions[bot], iprithv, msfroh, romseygeek, sgup432
iterating and removing matching cache entries under the partition write lock
    msfroh 11.4 hours ago:  @iprithv -- can you please move the changelog entry to 11.0? The change itself looks fine.
    github-actions[bot] 2 months 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!

#16555 PR: fix: prevent HNSW node degree decay across merge generations by adding absolute M-based threshold
8.8 hours ago  3 comments  0 votes  0 watches  ethbak, github-actions[bot], msokolov, waterWang
# Fix This PR fixes a progressive recall degradation issue in IncrementalHnswGraphMerger when ... The node is flagged for repair only if it lost more than 15% of its neighbors in that single merge ... The threshold is relative to the node's **current** (potentially already thinned) degree at the ...
    github-actions[bot] 8.8 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!
    msokolov 14.7 days ago:  I do appreciate the problem description, but also the description of the problems with this ... I do think setting a minimum outdegree floor makes sense, and we should consider allowing it to ... And we definitely need benchmarks in order to settle on anything.

#16627 PR: Parallelize the repair process for disconnected nodes during HNSW merge-re-use
9 hours ago  21 comments  0 votes  0 watches  ethbak, github-actions[bot], msokolov
Overview Currently, when IncrementalHnswGraphMerger reuses an existing graph, InitializedHnswGra ... This logic runs inside ConcurrentHnswMerger.createBuilder. Which is called before HnswConcurrentMergeBuilder even exists, so the copy/repair/rebalance process ...
    ethbak 9 hours ago:  > Please try to avoid force-push if possible, since it loses the commits on which the reviews are ... I was trying to revise and my agent ended up modifying the PR when I meant to just reconcile and ... My error, please do not review yet, I will add a more detailed update when I get a chance to fully ...
    msokolov 14.6 hours ago:  Please try to avoid force-push if possible, since it loses the commits on which the reviews are ...

#16654 PR: Backwards-compatibility changes for [Byte|Float]VectorSimilarityQuery
9.7 hours ago  2 comments  0 votes  0 watches  github-actions[bot], hossman, kaivalnp
Description Backwards compatibility changes described in https://github.com/apache/lucene/pull/ ...
    hossman 9.7 hours ago:  > One issue with this change: users won't be able to subclass the queries and override functions ( ... . > I wonder if we should create new classes entirely, or keep initialization constructor-based?
    kaivalnp 9.9 hours ago:  One issue with this change: users won't be able to subclass the queries and override functions (for ... I wonder if we should create new classes entirely, or keep initialization constructor-based? (and let users discover the breakage through their tests)

#16030 PR: Implement data-blind scalar quantization
11.8 hours ago  27 comments  0 votes  0 watches  github-actions[bot], kaivalnp, mccullocht, mikemccand, romseygeek
Add an option to the quantization format to enable or disable centering (enabled by default). When centering is disabled we also stop writing the float vectors which can lead to significant ... Special handling is included during merges -- we check that all of the input is in the same ...
    mccullocht 12.9 hours ago:  It's not part of the automated indexing flow but IIUC there is already support for truncating the ... At 4 or 8 bits this is almost always pretty reasonable.
    mccullocht 13 hours ago:  This file has been deleted.

#16653 PR: deps(java): bump com.github.luben:zstd-jni from 1.5.7-15 to 1.5.7-16
12.9 hours ago  0 comments  0 votes  0 watches  dependabot[bot]
Bumps com.github.luben:zstd-jni from 1.5.7-15 to 1.5.7-16. <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/luben/zstd-jni/commit/ ... [Dependabot compatibility score](https://docs.github.com/en/github/managing-security-vulnerabilities ...

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