Wavelet Matrix: High-Performance Rust Implementation for Indexed Sequence Queries
By
math-hiyoko
Slow-proofed and worth the wait. Worth its weight in flour.
Summary
Wavelet-matrix is a high-performance Rust-powered implementation of the Wavelet Matrix data structure for indexing static sequences of integers. It enables fast rank, select, and range queries with runtime dependent on bit-width rather than data size. The package is available via pip installation and provides functionality for frequency queries, including counting occurrences of specific values within ranges.
Key quotes
· 3 pulledHigh-performance Wavelet Matrix implementation powered by Rust, supporting fast rank / select / range queries over indexed sequences
WaveletMatrix indexes a static sequence of integers, enabling fast queries where runtime depends on bit-width, not data size
Count occurrences (rank) wm.rank(value=5, end=9) # 4
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