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Thomas Karagiannis

I am a senior researcher with the systems and networking group at Microsoft Research, Cambridge, UK. My research interests span most aspects of computer communications and networks with my current focus being on data centers. In the past, I worked on Internet measurements and monitoring, traffic classification, network management, home networks, social networks, and peer-to-peer networks.

I received my Ph.D from the Computer Science department of the University of California, Riverside, and completed my undergraduate studies at the department of Applied Informatics of the University of Macedonia in Thessaloniki, Greece.

Professional Service

Workshop on Online Social Networks at MSRC

Selected Publications

Presentation at NANOG, October 2005 [pdf]

Presentation at NANOG, October 2005 [pdf]

  • Thomas Karagiannis, Andre Broido, Michalis Faloutsos, and Kimberly C. Claffy, Transport layer identification of P2P traffic, in ACM/USENIX Internet Measurement Conference (IMC), pp. 121-134, Oct. 2004
  • Thomas Karagiannis, Andre Broido, Nevil Brownlee, Kimberly C. Claffy, and Michalis Faloutsos, Is P2P dying or just hiding?, in IEEE Globecom 2004 - Global Internet and Next Generation Networks, 2004   

 Our file-sharing measurements hit the press: [Wired] [USA Today] [ACM Tech News] [slashdot
 Our paper was referenced in the MGM v. Grokster case: []
 "P2P study flawed says RIAA"...[]

 Complete list of pulications here.


 +44 1223 479743
21 Station road
Cambridge, CB1 2FB, UK