Frequently used molecular/gene interaction networks in network-based feature selection studies.

We listed below the basic information of the networks as well as exemplary studies that employed the networks. With STRING database we only considered the edges with confidence scores ≥ 0.9. When a database has information of many species, only Homo sapiens was considered. In the 4th and 5th columns, Data means that the network size is dependent on the dimensions of data. App means that the network size is dependent on the application. GO means that the network size is dependent on gene ontology terms.