Fig. 4

An illustrative example of heterogeneous network. An illustrative example of heterogeneous network. The squares indicate the nodes of diseases, and the edges between disease nodes describe the weights determined by the similarity value between diseases. The circles indicate the nodes of lncRNAs, and the edges between lncRNAs nodes describe the weights determined by the similarity value between lncRNAs. The edges between diseases and lncRNAs indicate the known lncRNA-disease associations, and the dashed lines indicate the predicted potential lncRNA-disease relationship