Table 2.

Examples of EDFs and CDFs

Feature type	Examples	# of features
EDF I	Name = human serotonin transporter gene,	--
EDF II	Left1 = human, Left2 = human serotonin, Left3 = human serotonin transporter, Right1 = gene, Right2 = transporter gene, Right3 = serotonin transporter gene	--
CDF I (left)	X gene, X binding sites, X is involved in ...	300
CDF I (right)	human X, kinase ( X, the expression of X...	300
CDF II	t > 0.5, t > 0.25, t> 0, t>-0.25, t > -0.5, t < -0.75, t < -1, t < -1.25, t < -1.5, t < -1.75, t < -2	11

In the examples of CDF II, t is the prediction score given by a SVM trained by local context words.