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Posted to issues@lucene.apache.org by "iprithv (via GitHub)" <gi...@apache.org> on 2026/05/27 18:23:00 UTC
[PR] Fix IBSimilarity with DistributionSPL producing negative scores [lucene]
iprithv opened a new pull request, #16139:
URL: https://github.com/apache/lucene/pull/16139
IBSimilarity with DistributionSPL could produce negative scores due to floating-point rounding errors when lambda is extremely close to 1. This breaks the contract that Lucene scores must be non-negative.
#16137, so clamped the computed score to be non-negative.
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Re: [PR] Fix IBSimilarity with DistributionSPL producing negative scores [lucene]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #16139:
URL: https://github.com/apache/lucene/pull/16139#issuecomment-4700297611
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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Re: [PR] Fix IBSimilarity with DistributionSPL producing negative scores [lucene]
Posted by "msfroh (via GitHub)" <gi...@apache.org>.
msfroh merged PR #16139:
URL: https://github.com/apache/lucene/pull/16139
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Re: [PR] Fix IBSimilarity with DistributionSPL producing negative scores [lucene]
Posted by "iprithv (via GitHub)" <gi...@apache.org>.
iprithv commented on PR #16139:
URL: https://github.com/apache/lucene/pull/16139#issuecomment-4727757101
@romseygeek I think this should be ideal fix for now. also we do the same in Axiomatic..And i did some digging and tried other ways but couldn't find any better fix..
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Re: [PR] Fix IBSimilarity with DistributionSPL producing negative scores [lucene]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #16139:
URL: https://github.com/apache/lucene/pull/16139#issuecomment-4940814830
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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