Scaling online social network crawling and microblogging systems

Xiaoming Fu, University of Göttingen, Germany

Thursday, March 13th, 2014 at 10:15.

Polacksbacken, room 1345

Online social networks (OSNs) and microblogging have become a rich information source and important communication channel for a substantial portion of the global population today. Also, obtaining OSN data via active crawling has attracted great interests for the research community as well as other stake-holders. However, these systems suffer from inherent bottlenecks when the scale becomes large.

In this talk, I will present our attempts in mitigating the bottlenecks in information dissemination and crawling OSN data in large scale. We show by introducing decentralized architectures into these systems, the overall resource capacity waste is low, while satisfying the users' needs.

Xiaoming Fu obtained his Ph.D. degree in Computer Science from Tsinghua University, China in 2000. After that he moved to Germany as a research staff at Technical University Berlin, and then teaching at the University of Goettingen, where he has been a Professor and heading the Computer Networks Group (http://www.net.informatik.uni-goettingen.de/) since 2007. His research areas include architecture, protocols and applications of Internet-based communication systems. He has been involved in EC FP6 ENABLE, MING-T, VIDIOS, Daidalos-II projects and is coordinator of FP7 GreenICN, MobileCloud and CleanSky projects. He is an IEEE Senior Member and an IEEE Communications Society Distinguished Lecturer. He served as Secretary and then Vice Chair of IEEE ComSoc TCCC, then Chair of the Internet Technical Committee of the IEEE ComSoc and the Internet Society. Currently he serves on the editorial boards of IEEE Communications Magazine, TNSM, Elsevier ComNet and ComCom journals.