I work on topics in systems and networking. My most recent research was about Community Information Management (CIM); that is, developing system support for data sharing and synchronization within loosely structured semi-trustful communities.  We built a platform that addresses practical problems affecting scale, security, and ubiquitous use of CIM.  Our platform offers the ability to replicate subsets of community data—suitably selected for each device; to perform updates anytime or anywhere at a fidelity native to the mobile or non-mobile device;  and to dis-allow or undo unauthorized changes to replicated data.

In addition to CIM, I am interested in other systems and networking topics as well, and have worked on research problems in the Domain Name System, mobile computing, network modeling, peer-to-peer systems, storage systems and wireless networks.  I developed these research interests while doing my doctoral studies at Cornell University and under-graduate studies at Indian Institute of Technology Madras.

 Research Projects

• CIM: Community Information Management
• Sequoia: Supporting Network-Aware Distributed Applications
• Honeycomb/Beehive: Cost-Aware Resource Management for Infrastructure Services

Recent Publications

• Fidelity-Aware Replication for Mobile Devices
  Venugopalan Ramasubramanian, Kaushik Veeraraghavan, Krishna P. N. Puttaswamy, Thomas L. Rodeheffer, Douglas B. Terry and Ted Wobber.
  IEEE Transactions on Mobile Computing (TMC), 2010 (to appear).
• On the Treeness of Internet Latency and Bandwidth
  Venugopalan Ramasubramanian, Dahlia Malkhi, Fabian Kuhn, Mahesh Balakrishnan, Archit Gupta and Aditya Akella.
  ACM SIGMETRICS / Performance, Seattle WA, June 2009.
• Cimbiosys: A Platform for Content-based Partial Replication
  Venugopalan Ramasubramanian, Thomas L. Rodeheffer, Douglas B. Terry, Meg Walraed-Sullivan, Ted Wobber, Catherine C. Marshall and Amin Vahdat.
  USENIX Symposium on Networked Systems Design and Implementation (NSDI), Boston MA, April 2009.
• Full list of publications

Program Committees

HotMobile 2011 HotDep 2010 MobiHeld 2010 P2P 2010 SOCC 2010 P2P 2009 NSDI 2009 HotAC 2007 EC 2007 ICDCS 2007 SECON 2006 PODC 2006

Selected Older Publications

• Perils of Transitive Trust in the Domain Name System
  Venugopalan Ramasubramanian and Emin Gün Sirer.
  ACM SIGCOMM Internet Measurement Conference (IMC), New Orleans LA, October 2005.
• The Design and Implementation of a Next Generation Name Service for the Internet
  Venugopalan Ramasubramanian and Emin Gün Sirer.
  ACM SIGCOMM, Portland OR, August 2004.
• Beehive: O(1) Lookup Performance for Power-Law Query Distributions in Peer-to-Peer Overlays
  Venugopalan Ramasubramanian and Emin Gün Sirer.
  USENIX Symposium on Networked Systems Design and Implementation (NSDI), San Francisco CA, March 2004.
• Full list of publications 

Selected Talks

• Filtered, Fidelity-aware Replication of Data among Devices and the Cloud
  Department of Computer Science, Duke University, Durham NC, December 2010.
  Duke University, Durham NC, December 2010.
  Department of Electrical Engineering and Computer Sciences, University of Michigan, Ann Arbor MI, June 2010.
• Sequoia: Virtual-Tree Models for Internet Path Metrics
  Microsoft P2P Summit, Redmond, WA, March 2008.
  MSR Networking Mindswap, Kyoto, Japan, August 2007.
• Cost-Aware Self-Organizing Systems for Decentralized Internet Services
  Large-Scale Distributed Systems and Middleware Workshop (LADIS), Technion, Haifa, Israel, March 2007.
  International Computer Science Institute (ICSI), Berkeley CA, June 2006.
• Full list of talks

Overview

• Current research
• Recent publications
• Program committees
• Older publications
• Recent Talks