Crate clark_hash 

Clark Hash: stateless sparse-JL quantization for neural embeddings.

The library centers around ClarkHash, a deterministic codec that projects an input vector into a low-dimensional sparse signed sketch and then applies a fixed scalar quantizer. The resulting code can be scored asymmetrically against floating-point queries while staying fully online and fully stateless.

The original codec and configuration names, SQuaJL and SQuaJLConfig, remain public for compatibility with earlier experiments and papers.

See the crate-level README.md for motivation, design notes, and usage examples.

Re-exports

pub use config::SQuaJLConfig;

pub use config::SimilarityMetric;

pub use error::Result;

pub use error::SQuaJLError;

pub use index::FlatIndex;

pub use index::ScoredIndex;

pub use quantized::QuantizedVector;

pub use quantized::QuerySketch;

pub use squajl::SQuaJL;

Modules

config

Configuration types and similarity-mode selection.

error

Error types returned by the crate.

index

A simple exact-scan index over quantized vectors.

quantized

Encoded database vectors and prepared query sketches.

squajl

The core stateless codec implementation.

Type Aliases

ClarkHash

Package-level name for the stateless sparse-JL codec.

ClarkHashConfig

Package-level name for the codec configuration.

ClarkHashError

Package-level name for errors returned by this crate.