#evaluation

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The First Real-Scale Evaluation: BM25 Against 657,867 Documents, from 0.170 to 0.366 After Fixing the Set

While the embedding run advances over 6.7 million chunks, we built the full-corpus FTS5 index (2.7 GiB) and ran the first real-scale BM25 evaluation. The v2 query set produced an MRR of 0.170; after fixing fake titles and ambiguous queries, v3 reached 0.366 and the partial hybrid smoke test 0.402. Along the way: a COUNT(*) that lies, 32 documents almost invisible to the index, and a token-pruning step that turned 21 hours of queries into 34 minutes without changing the metrics.

Joaquín Bravo ContrerasRead more