Ramesh Sitaraman

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Ramesh Sitaraman
Alma materIndian Institute of Technology, Madras[1]
Princeton University[1]
Known forcontent delivery network
Scientific career
FieldsComputer Science, Distributed Systems
InstitutionsUniversity of Massachusetts, Amherst
Doctoral advisorRobert E. Tarjan[2]

Ramesh Sitaraman is an Indian American computer scientist currently in the computer science department at University of Massachusetts Amherst.[3] He is known for his work on distributed algorithms, content delivery networks, streaming video delivery, and application delivery networks.


Ramesh Sitaraman received a B.Tech in Electrical Engineering from the Indian Institute of Technology, Madras and a Ph.D in computer science from Princeton University.[1] In the past, he helped build Akamai's high-performance network for delivering web and media content [1] and is an Akamai Fellow.[4][5] Currently, he is at the computer science department at University of Massachusetts, Amherst.

Research Interests[edit]

Sitaraman's early research centered on algorithms for building reliable parallel networks from unreliable components by emulating a virtual overlay network on top of an underlying unreliable parallel network.[6][7] Later, serving as a principal architect,[8] he helped build the Akamai network,[7] a large overlay network that currently delivers 15-30% of all web traffic using 190,000 servers in 110 countries in over 1,100 networks.[9] He is known for helping pioneer Iarge distributed networks for web content delivery, streaming media delivery, and application delivery on the Internet.[7][10] His current research is focused on energy efficiency of Internet-scale distributed networks.[5][11] He is also known for his early work in building large-scale video delivery networks,[8] measuring their performance,[12] and more recently studying the impact of streaming video performance on users.[13][14][15][16][17]


  1. ^ a b c d "Biography for Ramesh Sitaraman". Retrieved 2013-02-04.
  2. ^ Ramesh Sitaraman at the Mathematics Genealogy Project
  3. ^ "UMass CS Faculty Directory". Retrieved 2013-02-05.
  4. ^ "New Video Quality Study Examines Causes of Viewer Behavior". Retrieved 2013-02-04.
  5. ^ a b "How smart batteries create efficient data centers, Green Biz, Jan 2013". Retrieved 2013-02-04.
  6. ^ F.T. Leighton, B. Maggs, and R. Sitaraman. "On the Fault Tolerance of Some Popular Bounded-Degree Networks, Proceedings of the 33rd Annual Symposium on Foundations of Computer Science (FOCS), October 1992, pp. 542-552".
  7. ^ a b c Erik Nygren, Ramesh K. Sitaraman, and Jennifer Sun. "The Akamai Network: A Platform for High-Performance Internet Applications, ACM SIGOPS Operating Systems Review, Vol. 44, No.3, July 2010" (PDF).
  8. ^ a b "Keynote talk: Streaming Content Delivery Networks, Packet Video Conference, 2002". Retrieved 2013-02-04.
  9. ^ "Akamai Facts & Figures". Retrieved 2013-02-05.
  10. ^ J. Dilley, B. Maggs, J. Parikh, H. Prokop, R. Sitaraman, and B. Weihl. "Globally Distributed Content Delivery, IEEE Internet Computing, September/October 2002, pp. 50-58" (PDF).
  11. ^ "Batteries should be part of the future Internet infrastructure, GigaOm, October 2012". Retrieved 2013-02-04.
  12. ^ Ramesh Sitaraman and Reid W. Barton. "Method and apparatus for measuring stream availability, quality and performance, US Patent, Feb 2002".
  13. ^ S. Shunmuga Krishnan and Ramesh Sitaraman. "Video Stream Quality Impacts Viewer Behavior: Inferring Causality using Quasi-Experimental Designs, Proceedings of the ACM Internet Measurement Conference (IMC), Boston, MA, Nov 2012" (PDF).
  14. ^ "NPR Morning Edition: In Video-Streaming Rat Race, Fast is Never Fast Enough, October 2012". Retrieved 2013-02-04.
  15. ^ "Boston Globe: Instant gratification is making us perpetually impatient, Feb 2013". Retrieved 2013-02-04.
  16. ^ "CNN: Online viewers ditch slow-loading video after 2 seconds, November 2012". Retrieved 2013-02-04.
  17. ^ "Science Daily: How Online Video Stream Quality Affect Viewer Behavior, November 2012". Retrieved 2013-02-04.