Table 4 Performance Comparison with Baselines on 2007 Collection.
From: Learning to rank diversified results for biomedical information retrieval from multiple features
MAP | Aspect | Passage | Passage2 | Document |
|---|---|---|---|---|
BM25 | 0.1622 | 0.0651 | 0.0697 | 0.2402 |
DirKL | 0.1383 | 0.0693 | 0.0637 | 0.2376 |
gLTR | 0.1878 | 0.0533 | 0.0706 | 0.2179 |
LTR | 0.1923 (+2.4%) | 0.0784 (+47.1%) | 0.0831 (+17.7%) | 0.2721 (+24.9%) |