FP and FN rates of SP predictions based on different SP cutoffs.

The first column gives the various cutoffs for the average log probability of SP prediction (refer to equation 5). The next two columns denote the number and percentage of false-positive SP with respect to 572 predicted SP from SCOP α- and membrane proteins based on the corresponding cutoff rate. Similarly, the last two columns describe the number and percentage of false-negative SP with respect to 45 predicted SP in seed sequences from SMART version 6 alignments.