Struct BinaryStore

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pub struct BinaryStore { /* private fields */ }

Expand description

Binary code store for Hamming distance pre-filtering. Encodes vectors as 1-bit-per-dimension codes via randomized Walsh-Hadamard rotation + sign extraction (SimHash).

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impl BinaryStore

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pub fn build(store: &PointStore) -> Self

Build binary codes: random sign flips (D) + Walsh-Hadamard in blocks of largest_pow2_factor(dim). Fixed seed for build/query consistency.

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pub fn code(&self, id: u32) -> &[u64]

Get the binary code (packed u64 words) for point id.

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pub fn code_words(&self) -> usize

Number of u64 words per binary code.

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pub fn encode_query(&self, query: &[f32]) -> Vec<u64>

Encode a query vector to binary code using the same HD rotation.

Auto Trait Implementations§

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impl UnwindSafe for BinaryStore

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impl<T> Any for T
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impl<T> From<T> for T

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Returns the argument unchanged.

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Calls U::from(self).

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