Back to Search-quality baseline: prose / conceptual (Phase 1.5, v1.2.0 candidate)

Metric | Value
--- | ---
Queries | 15
Any relevant in top-3 (headline) | 4 / 15 (26.7%)
Any relevant in top-5 | 6 / 15 (40.0%)
Mean P@3 | 0.1111
Mean P@5 | 0.0933

This is the second-worst class baseline after acronym (4/22, 18%). For prose, this number represents an upper-bound on the methodology problem and a lower-bound on the ranker problem; the truth is somewhere in between.