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#15708 PR: Add optional query bit size hint to KnnSearchStrategy.Hnsw

10.7 hours ago 1 comments 0 votes 0 watches arup-chauhan, benwtrent, github-actions[bot]

This PR introduces an optional query bit-size hint for KnnSearchStrategy.Hnsw as a first ... I intentionally limited the scope to search-strategy API plumbing and tests to keep risk low. Default behavior remains unchanged: the new hint is metadata-only in this PR and does not alter ...

arup-chauhan 10.8 hours ago:

Hey @benwtrent Implemented the first incremental step by adding an optional queryBitSizeHint to ... I’ve preserved backward compatibility, forwarded the hint through Patience / seeded wrapping paths, ... This PR intentionally does not change scoring behavior.

#15620 PR: Add Temporal Merge Policy for time-series data

22.7 hours ago 39 comments 0 votes 0 watches benwtrent, churromorales, github-actions[bot], msfroh, shubhamsrkdev

Description This PR introduces TemporalMergePolicy, a new merge policy designed for time-series ... The policy groups segments into time windows and merges segments within the same window, but never ... This preserves temporal locality and improves query performance for time-range queries. relates to ...

churromorales 22.7 hours ago:	just a defensive check, its really if compactionRatio == 1.0d, I can do that as well.
churromorales 2 days ago:	@msfroh honeslty I felt if you had less than 5% deletes than this works just fine, but we could do ... I am totally fine with either approach, I will defer to you guys here.

#15659 PR: Avoid unnecessary DisjunctionMaxBulkScorer overhead

1 day ago 11 comments 0 votes 0 watches benwtrent, github-actions[bot], jpountz, shimpeko, uschindler

This change inspects clause bulk scorers up front and only uses DisjunctionMaxBulkScorer if at ... Otherwise, we fall back to the scorer-based path. c88f9334e5c99abbeb4f233f9606873e5037c118 made DisjunctionMaxQuery use DisjunctionMaxBulkScorer when ...

shimpeko 1.1 days ago:	@jpountz I’ve dropped the idea of switching from DisjunctionMaxBulkScorer to DisjunctionMaxScorer ... That approach has been reverted. Instead, this change (fe86ceb) now makes DisjunctionMaxBulkScorer start with a window size of 1 and ...
shimpeko 10.4 days ago:	I added test case that are closer to my query which has dismax + constant_score as https:// ... Looking at the following benchmark result, I think I can say that the changes on this PR has ... .

#15508 PR: Use native vectorization in Lucene

1.1 days ago 49 comments 0 votes 0 watches dweiss, github-actions[bot], goankur, rmuir, shubhamvishu

Description This is continuation of the work @goankur started in https://github.com/apache/ ... Quoting the comment below from the initial PR.

dweiss 1.1 days ago:	Thank you.
shubhamvishu 1.3 days ago:	Thank you @dweiss ! I'll wait for a few days to see if anyone has more feedback and then merge.

#15361 PR: [BackPort] Making Vector Search Deterministic

1.8 days ago 1 comments 0 votes 0 watches avinashdevp, github-actions[bot]

Description Backporting changes of https://github.com/apache/lucene/pull/14226 https:// ... -- If this is your first contribution to Lucene, please make sure you have reviewed the ... https://github.com/apache/lucene/blob/main/CONTRIBUTING.md -->

github-actions[bot] 3.2 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!

#15627 PR: Deferring lambda in TermStates.java according to prefetch

1.8 days ago 23 comments 0 votes 0 watches epotyom, github-actions[bot], shubhamsrkdev, uschindler

Problem Currently, for term lookup TermStates.get defers for every case (to the lambda in ... This works great for cold indexes but might not be the best for hot indexes. Solution We can depend upon prefetch for deferring.

github-actions[bot] 1.8 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!
shubhamsrkdev 16 days ago:	> +31% QPS - nice improvement for hot index scenario! I don't think we should see cold index improvements though - is the index cold enough 🥶? Hmm I have tried with even lower memory (4 GB) with same results

#15292: Expose the name or an indication of which VectorizationProvider is being used

1.9 days ago 1 comments 0 votes 0 watches hossman, risdenk, tflobbe

Description Given an application that could benefit from using PanamaVectorizationProvider, I ... Right now, this doesn't seem possible without using some kind of reflection and hacks on the ... I was thinking we could have a public static String getImplementationName() or something that's ...

hossman 1.9 days ago:

tomas pointed me to this issue in a recent mailing list thread where i proposed something similar.. ... Meaning that if/when we want to rename the Panama* classes because "Panama" is no longer an ... .

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