Objective function: sequence specificity score. The figure shows the comparison between the sequence specificity scores of the planted motifs (named TFBS in the legend) and the predictions of Weeder and ANN-Spec. For the same reason as in Figure 1, only datasets of "Generic" and "Markov" types are tested. The x-axis tells the indices of the datasets. The datasets are sorted in ascending order of TFBS scores for clarity. For each dataset, there are three scores: the score of TFBS motif, Weeder's prediction, and ANN-Spec's prediction, colored in red, blue and green respectively. Points on the x-axis corresponds to the datasets for which the tool didn't make any prediction.