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obikmer/UserDocMD/usage
Eric Coissac b0890d1781 Add sparse storage variant to PersistentCompactIntMatrix
Introduce a new `Sparse` format alongside existing `Columnar` and `Packed` variants, enabling optimized row-major pairwise counting for distance and similarity metrics via the `CountPartials` trait. Update storage detection priorities, extend matrix dispatch logic to sparse backends, and correct diagonal/off-diagonal formulas in bit matrix partial computations. Expand layer APIs with format-agnostic `nonzero_iter`, update usage documentation for the `--sparse` flag, and add comprehensive tests verifying roundtrip integrity and metric equivalence against dense implementations.
2026-08-28 19:06:39 +02:00
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