Figure 2. Comparison of nucleotide precision recall curves for known and unknown motif length.

Figure 2a) shows the nucleotide precision recall curves for the de-novo motif discovery tools provided with the correct motif length, and Figure 2b) shows the nucleotide precision recall curves for the de-novo motif discovery tools when the correct motif length is not provided but must be learned by the tools. For reasons of visual clarity, we do not plot the partial nucleotide precision recall curves of those tools with and below 0.1 for all available thresholds. These curves would be located in the lower left corner of both subfigures.