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Table 3 Performance Comparison with Baselines on 2006 Collection.

From: Learning to rank diversified results for biomedical information retrieval from multiple features

MAP Aspect Passage Document
BM25 0.1972 0.0362 0.3449
DirKL 0.1591 0.0360 0.3566
gLTR 0.2292 0.0369 0.3547
LTR 0.2400
(+4.7%)
0.0416
(+12.7%)
0.3910
(+10.23%)