Support different values of b per field in BM25FQuery [LUCENE-8710]
Open
legacy-jira-priority:Minor
type:enhancement
- Dominant language
- Java
- Stars
- 3.6k
- Forks
- 1.4k
- Avg merge
- 2d 11h
- Merged PRs (30d)
- 88
Description
Currently BM25FQuery only supports the simple variant of BM25F, can we also support having different values of b per field?
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Migrated from [LUCENE-8710](https://issues.apache.org/jira/browse/LUCENE-8710) by Adrien Grand (@jpountz)
Contributor guide
Research direction
Start with BM25FQuery and inspect how its current simple BM25F variant represents the b value for fields. Define the per-field behavior and verify that queries can accept distinct b values for each field while preserving the existing variant's behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- search
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100