Skip to main content

Advertisement

Table 10 The number of retrieved documents using OVID for the original and simplified boolean queries of Miscellaneous dataset.

From: Boolean versus ranked querying for biomedical systematic reviews

  Tier 0
Review Orig Simp
1 628 14,244
2 1,691 96,797
3 31,552 22,213
4 4,813 1,881
5 10 78,536
6 507 91,572
7 1,174 40,930
8 14,952 7,938
9 11 74,200
10 243 278,832
11 1,235 496,656
12 662 983