Struct MinHasher 

pub struct MinHasher { /* private fields */ }

MinHasher computes MinHash signatures from documents.

This struct maintains the hash function coefficients and provides methods to compute signatures from raw bytes or strings.

Implementations

impl MinHasher

pub fn new(config: &Config) -> Result<Self>

Create a new MinHasher from a configuration.

Errors

Returns an error if the configuration is invalid.

pub fn compute(&self, data: &[u8], doc_id: usize) -> Result<MinHashSignature>

Compute MinHash signature for a byte sequence.

Errors

Returns an error if the document is empty or too large.

pub fn compute_str(&self, text: &str, doc_id: usize) -> Result<MinHashSignature>

Compute signature for a string.

Errors

Returns an error if the document is empty or too large.

pub fn compute_batch( &self, documents: &[&[u8]], start_id: usize, ) -> Vec<Result<MinHashSignature>>

Compute signatures for multiple documents in batch.

This is more efficient than calling compute repeatedly due to better cache utilization.

pub fn compute_from_hashed_shingles( &self, shingle_hashes: &[u64], doc_id: usize, ) -> MinHashSignature

Compute signature from pre-hashed shingles.

Useful when shingles are computed elsewhere or cached.

pub const fn signature_size(&self) -> usize

Get the signature size.

pub const fn shingle_size(&self) -> usize

Get the shingle size.