Figure 1.

Feature space of the position and significance score representing the training sets distribution of the ARF-binding sites (red color) and false positives (blue color). Three fuzzy sets and their corresponding membership degree functions (μSc(i) and P(j)). The latter parameters were defined for each feature (position and score) and found to yield nine regions. The boundaries of the different sets were determined through a learning step as much as possible to define the discriminative regions.