Skip to main content

Advertisement

Table 8 Effectiveness of Boolean retrieval approaches: un-ordered documents using original and simplified Boolean queries (Ovid).

From: Boolean versus ranked querying for biomedical systematic reviews

  Level Precision recall
Boolean Tier 1 0.0282 0.2656
(Orig) Tier 2 0.0121 0.2853
Boolean Tier 1 0.0130 0.7904
(Simp) Tier 2 0.0058 0.8209