Frequencies of features used by SVMs for training. (a) The features used for training each SVM. Green boxes indicate features used to train an SVM with that physicochemical property. Red boxes indicate features that were not used. (b) The relative frequency with which each feature is used in SVM training highlights the most important positions for accurate SVM training.
Brick et al. Genome Biology 2008 9:R178 doi:10.1186/gb-2008-9-12-r178