title: Overlapping Community Detection using Bayesian Nonnegative Matrix Factorization. creator: Psorakis, Ioannis creator: Roberts, Stephen J creator: Ebden, Mark creator: Sheldon, Ben subject: Machine Learning subject: Incentive Engineering description: Identifying overlapping communities in networks is a challenging task. In this work we present a probabilistic approach to community detection that utilizes a Bayesian non-negative matrix factorization model to extract overlapping modules from a network. The scheme has the advantage of soft-partitioning solutions, assignment of node participation scores to modules, and an intuitive foundation. We present the performance of the method against a variety of benchmark problems and compare and contrast it to several other algorithms for community detection. date: 2011 type: Article type: PeerReviewed format: application/pdf identifier: http://www.orchid.ac.uk/eprints/38/1/PRE_NMF.pdf relation: http://pre.aps.org/pdf/PRE/v83/i6/e066114 identifier: Psorakis, Ioannis and Roberts, Stephen J and Ebden, Mark and Sheldon, Ben (2011) Overlapping Community Detection using Bayesian Nonnegative Matrix Factorization. Physical Review E, 83 (6). ISSN 1539-3755 relation: http://www.orchid.ac.uk/eprints/38/