4, where Mintz (Mintz et al., 2009), MultiR (Hoffmann et al., 2011) and MIMLRE (Surdeanu et al., 2012) are conventional feature-based methods, and (Lin et al., 2016) and  are PCNN-based ones 4 .
table 5 compares the AUC values reported in these two papers and the results of our proposed models.