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#16906: PiPNN style level 0 graph construction
1.3 hours ago  2 comments  0 votes  0 watches  Tony-X
Description HNSW merges that cannot reuse an existing graph (deletes, or no segment with a usable ... That cost grows with log n per insertion, is random-access bound, and is the dominant part of a ... PiPNN (Rubel et al., KDD 2026) builds level 0 without any graph search: randomized ball carving ...
    Tony-X 1.3 hours ago:  Identified the leaf assignment as the a major source of slowdown since it is doing the scalar math. Good news is that the blocked (tile) dot-product can apply here, too. With that fixed, PiPNN scales much better, <img width="1710" height="464" alt="Image" src="https: ...
    Tony-X 7.4 hours ago:  A test about the parallel potential | workers | HNSW | PiPNN | ratio | HNSW speedup (eff.) | ...

#16896 PR: fix long overflow in GCD-encoded DocValues range transform
2.7 hours ago  1 comments  0 votes  0 watches  costin, github-actions[bot], kkewwei
Description In NumericDocValues, GCD encoding stores(v - min) / gcd as an unsigned long, andmin ... When querying the range[-1, 1] ,saturatingShiftLower andsaturatingShiftUpper computev - delta . Sincedelta < 0 , the computation overflows, causing the encoded range to become[Long.MAX_VALUE, ...
    kkewwei 2.7 hours ago:  @costin Sorry to bother you — I saw that you have optimized the code before, could you help review ... Very thank you, and sorry for the ping.

#16893 PR: Skip index-sort range shortcuts on segments with blocks and multi-valued fields
2.8 hours ago  2 comments  0 votes  0 watches  HoustonPutman, github-actions[bot], kkewwei
Fixes https://github.com/apache/lucene/issues/16884, https://github.com/apache/lucene/issues/16885, ... Description This fixes a few range query bugs regarding multi-valued fields and segments with ...
    kkewwei 2.8 hours ago:  Are the testBlocksChildrenWithoutValue and testBlocksChildrenWithValue covering the same case? Could we remove one of them?

#16907 PR: Add native vector integration tests with a small C fixture
4.4 hours ago  0 comments  0 votes  0 watches  ColinLeeo, github-actions[bot]
DescriptionThe Java-backed tests in #16795 exercise dispatch and argument/result handling, but ... This adds the small native-integration follow-up discussed in #15840, based directly on current ... It can be reviewed independently of 16795.

#16660 PR: Skip blocks without decompressing them when reading selected stored fields.
5 hours ago  2 comments  0 votes  0 watches  github-actions[bot], vsop-479
This change implements skip entire sub blocks without decompressing them, when these blocks only ... Inspired by https://github.com/apache/lucene/pull/1003. Relates to https://github.com/apache/lucene/issues/11652.
    github-actions[bot] 29.3 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!
    vsop-479 1.5 months ago:  No regression on wikimediumall: ` TaskQPS baseline StdDevQPS my_modified_version ...

#16795 PR: Add Java-backed tests for NativeVectorUtilSupport
5.4 hours ago  2 comments  0 votes  0 watches  ColinLeeo, github-actions[bot], shubhamvishu
Description NativeVectorUtilSupport is normally exercised only when a native library is supplied ... This adds Java-backed method handles so the regular core test suite can exercise native dispatch, ... .
    ColinLeeo 5.4 hours ago:  @shubhamvishu Sorry for the delayed follow-up. This PR implements the Java-backed testing approach we discussed in #15840. I've updated it against the latest main and aligned the tests with the native contract changes in ...
    github-actions[bot] 6.7 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!

#16791 PR: Validate dict and block lengths in preset-dict decompressors
6.7 hours ago  1 comments  0 votes  0 watches  github-actions[bot], harshvardhanrp
Description > The preset-dict decompressors (LZ4WithPresetDictCompressionMode for BEST_SPEED ... . > > If these values are broken, reading a stored document can fail badly instead > of throwing ...
    github-actions[bot] 6.7 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!

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