They were asked to determine the relevance on a three-point scale: definitely relevant, 8 http://qt21.metashare.ilsp.gr/repository/browse/qtlpenglish-greek-corpus-for-the-medicaldomain/665f3832a93211e3b7d800155dbc020119068d540 possibly relevant and not relevant.
the average precision was also higher than the average recall for both tools.