Performance comparison on the simulated palindromic TFBS. The performance comparison of different methods for predicting the simulated palindromic TFBS A. The x-axis shows the number of motif sequences used for training. The y-axis is the Matthews correlation coefficient of each method in predicting the same testing dataset (150 false and 150 true sites, respectively). The figure shows that OMiMa performed significantly better than the other methods, regardless the number of training samples.