Drug-target networks are receiving a lot of attention in late years, given its relevance for pharmaceutical innovation and drug lead discovery. Different in silico approaches have been proposed for the identification of new drug-target interactions, many of which are based on kernel methods. Despite technical advances in the latest years, these methods are not able to cope with large drug-target interaction spaces and to integrate multiple sources of biological information. In this project, we aim to investigate techniques that allow the integration of multiple heterogeneous information sources for the identification of new interactions, and can also work with networks of arbitrary size.