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BM25S: Accelerating Lexical Search with Eager Sparse Scoring

BM25S is a new Python tool. It accelerates search by 500 times, outperforming popular Python and Java tools. It achieves this by storing search scores in a specialized matrix during setup. This method makes it exceptionally fast. It also adeptly handles various types of BM25 searches. The code is available online for anyone to use.

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