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Apache Lucene open-source search software
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Shubham Chaudhary 52dfe50e8f
Ability to compute vector similarity scores with DoubleValuesSource (#12548) 
### Description

This PR addresses the issue #12394. It adds an API **`similarityToQueryVector`** to `DoubleValuesSource` to compute vector similarity scores between the query vector and the `KnnByteVectorField`/`KnnFloatVectorField` for documents using the 2 new DVS implementations (`ByteVectorSimilarityValuesSource` for byte vectors and `FloatVectorSimilarityValuesSource` for float vectors). Below are the method signatures added to DVS in this PR:

- `DoubleValues similarityToQueryVector(LeafReaderContext ctx, float[] queryVector, String vectorField)` *(uses ByteVectorSimilarityValuesSource)*
- `DoubleValues similarityToQueryVector(LeafReaderContext ctx, byte[] queryVector, String vectorField)` *(uses FloatVectorSimilarityValuesSource)*

Closes #12394
 		2023-10-12 13:34:37 -04:00
.github Generate gradle.properties from gradlew (#12131) 2023-02-06 19:47:15 +01:00
buildSrc GITHUB#12655: Upgrade to Gradle 8.4 2023-10-11 16:11:53 -04:00
dev-docs a bit of clarification about GitHub Milestone 2022-08-28 13:52:58 +09:00
dev-tools Add a little bit more hint to releaseWizard 2023-10-09 17:05:23 -03:00
gradle Fix Gradle toolchain download with Gradle 8.4 (#12655) (#12662) 2023-10-12 13:22:48 +02:00
help Generate gradle.properties from gradlew (#12131) 2023-02-06 19:47:15 +01:00
lucene Ability to compute vector similarity scores with DoubleValuesSource (#12548) 2023-10-12 13:34:37 -04:00
.asf.yaml .asf.yaml 2022-08-16 20:02:47 +09:00
.dir-locals.el LUCENE-9322: Add Lucene90 codec, including VectorFormat 2020-10-18 07:49:36 -04:00
.git-blame-ignore-revs GITHUB#12655: Add google java format upgrade tidy / regen to blame ignore 2023-10-11 16:15:42 -04:00
.gitattributes LUCENE-10305: Ensure line endings of versions.props is LF 2021-12-11 10:10:44 +09:00
.gitignore LUCENE-9920: Remove binary gradle-wrapper.jar from the repository 2021-04-10 16:08:39 +02:00
.hgignore LUCENE-2792: add FST impl 2010-12-12 15:36:08 +00:00
.lift.toml Disable liftbot, we have our own tools 2022-05-05 22:27:57 +02:00
CONTRIBUTING.md Fix type in CONTRIBUTING.md (#11879) 2022-11-01 20:10:05 +00:00
LICENSE.txt LUCENE-10163 Move LICENSE and NOTICE file to top level (#388) 2021-10-18 01:24:11 +02:00
NOTICE.txt Cleanup NOTICE.txt (#12227) 2023-04-18 15:58:09 -04:00
README.md Allow building with java 18 now that gradle supports it (#11889) 2022-10-28 23:41:09 -04:00
build.gradle GITHUB#12655: Upgrade to Gradle 8.4 2023-10-11 16:11:53 -04:00
gradlew GITHUB#12655: Upgrade to Gradle 8.4 2023-10-11 16:11:53 -04:00
gradlew.bat GITHUB#12655: Upgrade to Gradle 8.4 2023-10-11 16:11:53 -04:00
settings.gradle Fix Gradle toolchain download with Gradle 8.4 (#12655) (#12662) 2023-10-12 13:22:48 +02:00
versions.lock remove non-NRT replication support (#12038) 2023-01-14 11:14:46 -05:00
versions.props Upgrade to errorprone 2.18 (#12086) 2023-01-14 14:39:23 -05:00

README.md

Apache Lucene

Lucene Logo

Apache Lucene is a high-performance, full-featured text search engine library written in Java.

Build Status

Online Documentation

This README file only contains basic setup instructions. For more comprehensive documentation, visit:

Building

Basic steps:

  1. Install OpenJDK 17 or 18.
  2. Clone Lucene's git repository (or download the source distribution).
  3. Run gradle launcher script (gradlew).

We'll assume that you know how to get and set up the JDK - if you don't, then we suggest starting at https://jdk.java.net/ and learning more about Java, before returning to this README.

See Contributing Guide for details.

Contributing

Bug fixes, improvements and new features are always welcome! Please review the Contributing to Lucene Guide for information on contributing.

Discussion and Support