Tunable Bm25 Parameters K1 B For Algorithm Customization

via “tunable bm25 parameters (k1, b) for algorithm customization”

Various BM25 algorithms for document ranking

Unique: Exposes k1 and b as instance-level parameters that can be set during initialization, enabling per-instance customization without subclassing or code modification

vs others: More flexible than fixed-parameter implementations, but less automated than systems with built-in parameter optimization or learning-to-rank approaches