Fig. 9From: Symbol spotting for architectural drawings: state-of-the-art and new industry-driven developmentsPrecision-recall curve. Precision-recall curve of the proposed symbol spotting approach on the GREC contest dataset [5], ideal case. The best performance, shown with a red circle, is for a correlation threshold TH = 0.875, with a corresponding F-score of 0.987, a precision of 0.983 and a recall of 0.992Back to article page