The Scientific World Journal / 2014 / Article / Fig 1

Research Article

Information Filtering via Biased Random Walk on Coupled Social Network

Figure 1

Illustration of a coupled social network with five users and five objects, where circles denoteusers and squares represent objects (color online). The social network (upper layer) consists of five users; the information network (lower layer) consists of five objects and five users, while user nodes are the same in the social network.