Back to Search-quality baseline: symbol-attribute (Phase 1.6, v1.2.0 candidate)

Metric | Value
--- | ---
Queries | 15
Mean P@5 (headline) | 0.2533
Mean P@1 | 0.2000
Mean P@10 | 0.2667
Zero P@5 queries | 8 / 15

This is the second-poorest baseline by P@5 after acronym (which was even more dramatic: 4/22 = 18%). For symbol-attribute, the picture is bimodal: some queries score near 1.0, many score 0.