Document clustering based on non-negative matrix factorization
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Mixed Membership Stochastic Blockmodels
The Journal of Machine Learning Research
Multiplicative latent factor models for description and prediction of social networks
Computational & Mathematical Organization Theory
Link prediction via matrix factorization
ECML PKDD'11 Proceedings of the 2011 European conference on Machine learning and knowledge discovery in databases - Volume Part II
Generalized latent factor models for social network analysis
IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume Two
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In this paper we address the problem of link prediction in networked data, which appears in many applications such as social network analysis or recommender systems. Previous studies either consider latent feature based models but disregarding local structure in the network, or focus exclusively on capturing local structure of objects based on latent blockmodels without coupling with latent characteristics of objects. To combine the benefits of previous work, we propose a novel model that can incorporate the effects of latent features of objects and local structure in the network simultaneously. To achieve this, we model the relation graph as a function of both latent feature factors and latent cluster memberships of objects to collectively discover globally predictive intrinsic properties of objects and capture latent block structure in the network to improve prediction performance. Extensive experiments on several real world datasets suggest that our proposed model outperforms the other state of the art approaches for link prediction.