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#15903 PR: Add TurboQuant rotation-based vector quantization codec to sandbox
1.1 hours ago  19 comments  0 votes  0 watches  benwtrent, github-actions[bot], mccullocht, mikemccand, shbhar, tveasey, xande
# Summary This PR adds a new FlatVectorsFormat implementation based on the TurboQuant algorithm ... This implementation was co-authored with an AI coding agent (Kiro) as an experiment in AI-assisted ... The agent handled the bulk of the code generation, test writing, and iterative debugging while I ...
    shbhar 1.1 hours ago:  Here are the updated results after some fixes - TQ8Bit is also comparable to SQ8bit now, but ... Changes from last run: 1. Merge int overflow fix 2.
    tveasey 1.7 hours ago:  > rotation is the real secret sauce here One thing to note on rotations is that block diagonal ... This might be competitive with Hadamard given we can perform the 64d matmul extremely fast with ... Regarding this comment I'm not sure we should mix up the choice of reranking representation and ...

#15933 PR: Add jmh benchmark for ReaderUtil#partitionByLeaf approaches
3.5 hours ago  0 comments  0 votes  0 watches  github-actions[bot], gsmiller
To support discussion in GH#15905 and an idea captured in GH#15934

#15934: Explore binary search in ReaderUtil#partitionByLeaf
4 hours ago  4 comments  0 votes  0 watches  gsmiller
DescriptionIn our current implementation, we linearly scan an array of sorted docIDs and compare ... I'm curious if a binary search approach might work better. The idea would be to iterate the leaves in order (which we're already doing) and bsearch the sorted ...
    gsmiller 4 hours ago:  I forgot to mention that the above two benchmarks were on a MacBook Pro (M3 chip). For fun, I ran benchmarks on two Linux boxes as well (x86 and ARM). Capturing benchmark results from all three machines here (some of this is duplicate from previous ...
    gsmiller 4 days ago:  I made the binary search approach a bit smarter and reran benchmarks. Providing new results and an AI-generated summary: ` Benchmark ... The difference is only in the partition step: - **Linear**: scan sorted doc IDs, advance leaf ...

#15937 PR: Add LongConsumer progress callback to Operations.determinize for memo…
4.9 hours ago  4 comments  0 votes  0 watches  drempapis, github-actions[bot], rmuir
Problem Lucene's Operations.determinize uses powerset construction to convert an NFA into a DFA. For patterns with combinatorial structure (e.g. *a*b*c*d*e*f*), this can cause exponential blowup in the number of DFA states, each carrying its ...
    drempapis 4.9 hours ago:  Thank you @rmuir , this makes sense to me. I agree that adding more resource-control knobs around determinization feels like the wrong ... I’ll experiment with the alternative path you suggested, removing upfront determinization from ...
    rmuir 8 hours ago:  > My intent with the callback was to support callers that already control the determinization call ... Well, I think lucene shouldn't have even a single parameter for this resource control, and ... Such parameters don't make sense to me and only come from people who think they can expose ...

#15574 PR: Introduce FirstPassGroupingCollectorManager
6.6 hours ago  1 comments  0 votes  0 watches  gaobinlong, github-actions[bot]
Description This pr introduces FirstPassGroupingCollectorManager and switches TestGrouping and ... Relates to https://github.com/apache/lucene/issues/12892.
    github-actions[bot] 2.2 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!

#15929 PR: Rename CollectionStatistics to FieldStatistics.
15.6 hours ago  0 comments  0 votes  0 watches  github-actions[bot], vsop-479

#15936 PR: Introduce BlockGroupingCollectorManager
15.6 hours ago  1 comments  0 votes  0 watches  dweiss, gaobinlong, github-actions[bot]
Description BlockGroupingCollector in grouping package did not have until now a corresponding ... This PR also implements a new TopGroups.mergeBlockGroup() method to merge blocking TopGroups() ... Relates to https://github.com/apache/lucene/issues/12892.
    gaobinlong 15.6 hours ago:  @dweiss , could you help to review this PR? Thank you~

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