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Table 6 Performance Comparison with TREC 2007 Submissions.

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

MAP Aspect Passage Passage2 Document
Max 0.2631 0.0976 0.1148 0.3286
Min 0.0197 0.0029 0.0008 0.0329
Median 0.1311 0.0565 0.0377 0.1897
gLTR 0.1878 0.0533 0.0706 0.2179
LTR 0.1923 0.0784 0.0831 0.2721