Thomas Karagiannis is a researcher with the systems and networking group at Microsoft Research, Cambridge, UK. His research interests include Internet measurements and monitoring, analysis and modelling of Internet application traffic dynamics, social networking, peer-to-peer networks, software update dissemination and anomaly detection. He received his Ph.D at the Computer Science department of the University of California, Riverside under the supervision of Associate Professor Michalis Faloutsos. Dissertation title: '' Novel Techniques and Models for Network Traffic Profiling: Characterizing the Unknown ''.
Thomas spent the summer of 2003 at CAIDA developing methodologies to identify and measure peer-to-peer file-sharing traffic at the Internet core. From July 2004 to May 2005 and from October 2005 to April 2006, he was an intern at Intel Research in Cambridge, UK working with Dina Papagiannaki on Internet traffic classification, P2P networks and anomaly detection. He received his B.S. at the department of Applied Informatics of the University of Macedonia in Thessaloniki, Greece.

News!

  First ACM SIGCOMM Workshop on Online Social Networks (WOSN)

  Workshop on Online Social Networks at MSRC

Current Projects

  HomeMaestro: A distributed system for the monitoring and instrumentation of home networks.

  Social networking:

• Albatross: Investigating the feasibility, performance, and design of opportunistic communication systems
• Email 2.0: Designing the next generation of the email service!

Recent Publications

• Network exception handlers: Host-network control in enterprise networks
  Thomas Karagiannis, Richard Mortier, Antony Rowstron
  ACM SIGCOMM 2008 (to appear).
• Sampling Strategies for Epidemic-Style Information Dissemination
  Milan Vojnovic, Varun Gupta, Thomas Karagiannis, Christos Gkantsidis
  IEEE INFOCOM, Phoenix, AZ, USA, 2008.

Technical Report: [pdf]

• Power law and exponential decay of inter contact times between mobile devices [pdf]
  Thomas Karagiannis, J-Y. Le Boudec, Milan Vojnovic
  ACM MOBICOM, Montreal, Canada, 2007.

Technical Report: [pdf]
MOBICOM 2007 Presentation: [ppt]

• Profiling the End Host [pdf]
  Thomas Karagiannis, Dina Papagiannaki, Nina Taft, Michalis Faloutsos
  Passive and Active Measurement Conference (PAM), Louvain-la-neuve, Belgium, April 2007.
• Planet Scale Software Updates [pdf]
  Christos Gkantsidis, Thomas Karagiannis, Pablo Rodriguez, Milan Vojnovic
  ACM SIGCOMM, Pisa, Italy, September 2006.

Technical Report: [pdf]

• Should Internet Service Providers Fear Peer-Assisted Content Distribution? [pdf]
  Thomas Karagiannis, Pablo Rodriguez, Dina Papagiannaki
  ACM/USENIX Internet Measurement Conference (IMC), Berkeley, CA, USA, October, 2005.

Presentation at NANOG, October 2005. [pdf]

• BLINC: Multilevel Traffic Classification in the Dark [pdf]
  Thomas Karagiannis, Dina Papagiannaki, Michalis Faloutsos
  ACM SIGCOMM, Philadelphia, PA, USA, August 2005.

Technical Report: [pdf]
Presentation at NANOG, October 2005. [pdf]

• Long-range dependence: Ten years of Internet traffic modeling
  Thomas Karagiannis, Mart Molle, Michalis Faloutsos
  IEEE Internet Computing. Special Issue - Measuring the Internet, September 2004.
• Transport layer identification of p2p traffic [pdf]
  Thomas Karagiannis, Andre Broido, Michalis Faloutsos, KC Claffy
  ACM/USENIX Internet Measurement Conference (IMC), Taormina, Sicily, Italy, October 25-27, 2004.
• Is P2P dying or just hiding? [pdf]
  Thomas Karagiannis, Andre Broido, Nevil Brownlee, KC Claffy, Michalis Faloutsos
  IEEE Globecom 2004 - Global Internet and Next Generation Networks, Dallas, Texas, USA, 29 Nov - 3 Dec, 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: [eff.org]
"P2P study flawed says RIAA"...[p2pnet.net]

• A Nonstationary Poisson View of Internet Traffic [pdf]
  Thomas Karagiannis, Mart Molle, Michalis Faloutsos, Andre Broido
  IEEE INFOCOM, Hong Kong, March 2004.

Complete list of publications here.





Professional Service

• PC chair: ACM SIGCOMM WOSN 2008, Workshop on Online Social Networks 2007.
  
• TPC member: ACM SIGCOMM/USENIX IMC 2008, IEEE INFOCOM 2008-2009, QoSim 2008.

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Links:

  The SELFIS Tool

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