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datastax
jvector
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Add int8 / byte-vector similarity support
- #709
#709
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r-devulap
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Add int8 / byte-vector similarity support
#709
r-devulap
wants to merge 33 commits into
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datastax/jvector:main
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Commits on Nov 13, 2026
Add random-access int8 vector value support
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Add byte-similarity methods to VectorUtilSupport / VectorUtil / DefaultVectorUtilSupport
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Add ByteVectorSimilarityFunction enum
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Add BuildScoreProvider.byteVectorScoreProvider and searchProviderFor(ByteSequence)
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Wire byteVectorScoreProvider into GraphIndexBuilder
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Vectorize ByteSequence similarity metrics with SIMD
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Add InlineByteVectors feature for native int8 on-disk storage
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Add INT8 end-to-end tutorial (Int8Example)
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Add int8 test coverage for byte-vector similarity, RABVV, BSP, SIMD, graph build, and disk round-trip
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Remove dead offset locals from byte similarity methods
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Fix maxMagnitude calculation for ByteVectorSimilarityFunction.DOT_PRODUCT
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Extract asRandomAccessSupplier with type check in BuildScoreProvider
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Add INT8 dataset configs for wikipedia-2023-11-en-mxbai and wiki-multilingual-v3 (1M) to BenchYAML
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Fix build and test failures in base, native and tests modules
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Add end-to-end int8/byte-vector support to the BenchYAML benchmark pipeline
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Fix dot_product_i8 and cosine_i8 odd accumulator loss on ARM SVE/NEON
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Address review feedback on int8 vector support
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Address second round of review feedback on int8 vector support
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Use integer accumulation for int8 defaults and reuse a scratch buffer for disk reranking
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Add and update tests for int8 review feedback
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Preserve score spacing in int8 DOT_PRODUCT at high dimensions
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Get rid of local paths
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Mark new int8 vector APIs as @Experimental
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Add getVectorInto to the common VectorValues interface
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Require explicit reranking/fusedGraph config instead of assuming defaults
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Fix Int8Example comments: siftsmall ships with the repo
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Make GraphIndexBuilder.build read the supplied int8 vectors like the float path
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Add 4.1.0 release note for int8 vector support
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Fix flaky int8 cosine tests on all-zero random vectors
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Register an InlineByteVectors FeatureProvider for int8 datasets
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update on disk version to v7. Update all test yamls to v7. Add unit tests. Added fix for Feature hard coding on disk version that has already been applied in ash-dev as well (#799)
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Add default implementations for int8 methods in VectorUtilSupport
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Check dimensions match in int8 dotProduct and squareL2Distance
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