Collective Multi-relational Network Mining

Thursday, March 2, 2017 - 10:00
TH 434
Shobeir Fakhraei
Our world is becoming increasingly interconnected and so is the data collected from it. Developing computational models capable of correctly representing the underlying interrelated structure and the heterogeneous characteristics of the real-world data is essential for representing and reasoning about it. Domains such as biology, online social networks, the World Wide Web, information networks, recommender systems, and scholarly networks are just a few examples that include explicit or implicit interdependent structures. In this talk, I will present approaches to model heterogeneous interlinked data ranging from feature-based and embedding-based approaches to statistical relational learning methods that more explicitly model the dependencies between entities. I will discuss different methods of modeling node classification and link inference in networks for several domains and highlight the effect of two important aspects: (1) Heterogeneous entities and multi-relational structures, (2) joint inference and collective classification of the unlabeled data. I will also introduce a model for link inference that serves as a template to encode a variety of information such as structural, biological, social, and contextual interactions in various domains.

Shobeir Fakhraei is a Ph.D. candidate at the Department of Computer Science, University of Maryland College Park (UMD) and a visiting researcher at University of California Santa Cruz (UCSC). He holds two M.Sc. degrees specialized on Data Mining and Biomedical Informatics, and Computer Engineering, and has been recognized with awards such as outstanding graduate research assistant recognition award, and General Motors academic scholarship award. He has collaborated with several research teams in academia and industry including at Microsoft Research Redmond, Yahoo! Research Sunnyvale, Turi (Dato), Ifwe (Tagged), and Henry Ford Health System. His research interests include Machine Learning, Multi-Relational Graph Mining, Recommender Systems, Social Network Analysis, and Biomedical and Health Informatics.