Fig. 4From: A multiple classifier system identifies novel cannabinoid CB2 receptor ligandsPerformance comparison plot for testing stage (represented as a double arrow). a Indicates the performance obtained using the MCC measure and b shows the performance obtained using the PPV measure. Also shown (represented as dots) the name of classifier achieving the best performance for each cluster (C) together with its performance value during the optimization/training stage (P)Back to article page