Ionut Constandache

Email: ionut [at] cs [dot] duke [dot] edu Office: D307 LSRC, 214 Hudson Hall Office Phone: (919) 684-1749 Computer Science Department Duke University

Research         Experience         Graduate Work         CV

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I have graduated in Spring 2011 with a PhD from the Department of Computer Science at Duke University. I moved to California and joined Sun/Oracle in the Hypervisor/Virtual Machine Group.

I am a PhD candidate in the Department of Computer Science at Duke University. I am working under the supervision of Professor Romit Roy Choudhury. I earned my Bachelor of Science degree in Computer Science from University Politehnica of Bucharest, Romania, in September 2005. I joined Duke University in Fall 2006.

Research

Interests

My broad research interests are in mobile and ubiquitous computing, distributed systems and human-computer interactions. More specifically, I am looking into mobile phone localization, context sensing/awareness, energy-efficiency, and human-mobile phone interfaces.

Publications

• Creating a Room Connectivity Graph of a Building from Per-Room Sensor Units by Carl Ellis, James Scott, Ionut Constandache, Mike Hazas.
  In ACM BuildSys 2012, Toronto, Canada, November 2012.
• Using Mobile Phones to Write in Air by Sandip Agrawal, Ionut Constandache, Shravan Gaonkar, Romit Roy Choudhury, Kevin Caves and Frank DeRuyter. In ACM MobiSys 2011, Washington, DC, USA, June 2011.
• "Did You See Bob?": Human Localization Using Mobile Phones by Ionut Constandache, Xuan Bao, Martin Azizyan and Romit Roy Choudhury.
  In ACM MobiCom 2010, Chicago, Illinois, USA, September 2010. [slides PDF]
• Towards Mobile Phone Localization without War-Driving by Ionut Constandache, Romit Roy Choudhury and Injong Rhee.
  In IEEE Infocom 2010, San Diego, California, USA, March 2010. [slides PDF]
• Highlights: event coverage in mobile social networks by Xuan Bao, Ionut Constandache and Romit Roy Choudhury.
  In Mobile Computing and Communications Review, 2010.
• Energy Efficient Localization Via Personal Mobility Profiling by Ionut Constandache, Shravan Gaonkar, Matt Sayler, Romit Roy Choudhury and Landon Cox. In Mobicase 2009, San Diego, California, USA, October 2009. [slides PDF]
  
• SurroundSense: Mobile Phone Localization Via Ambience Fingerprinting by Martin Azizyan, Ionut Constandache and Romit Roy Choudhury.
  In ACM MobiCom 2009, Beijing, China, September 2009. [slides PDF]
  In the media: Yahoo News, Scientific American, ScienceDaily, Duke News.
• PhonePoint Pen: Using Mobile Phones to Write in Air by Sandip Agrawal, Ionut Constandache, Shravan Gaonkar and Romit Roy Choudhury.
  In MobiHeld 2009 workshop in conjunction with ACM SIGCOMM 2009, Barcelona, Spain, August 2009.
  In the media: Slashdot, Scientific American, ScienceDaily, Engadget, Duke News, Duke Today, YouTube.
• EnLoc: Energy Efficient Localization for Mobile Phones by Ionut Constandache, Shravan Gaonkar, Matt Sayler, Romit Roy Choudhury and Landon Cox. In IEEE Infocom 2009 (Mini), Rio de Janeiro, Brazil, April 2009.
• Secure Control of Portable Images in a Virtual Computing Utility by Ionut Constandache, Aydan Yumerefendi and Jeff Chase.
  In VMSec 2008 workshop in conjunction with ACM CCS 2008, Alexandria, Virginia, USA, October 2008. [slides PDF]
• Policy-driven Negotiation for Authorization in the Grid by Ionut Constandache, Daniel Olmedilla, and Frank Siebenlist.
  In IEEE POLICY 2007, Bologna, Italy, June 2007.

Posters

• Highlights: Event Coverage in Mobile Social Networks by Xuan Bao, Ionut Constandache, and Romit Roy Choudhury.
  In ACM MobiCom 2009 SRC, Beijing, China, September 2009.
• EnLoc: Energy-Aware Localization Using Mobile Phones by Ionut Constandache, Shravan Gaonkar, Matt Sayler, Romit Roy Choudhury and Landon Cox. In ACM MobiSys 2008, Breckenridge, Colorado, USA, June 2008.