Fig. 1From: A two-tiered unsupervised clustering approach for drug repositioning through heterogeneous data integrationA generalized illustration of two alternative approaches involving in drug repositioning; (a), (b) and (c) represent the known interactions, New Target Recognition and New Indication Recognition, respectively. (The notations 1*-1* and m-n indicate one-or-many and many-to-many relationships, respectively)Back to article page