Ramaswamy Hariharan
Ph.D. Candidate
Donald Bren School of Information and Computer Sciences
University of California, Irvine (UCI)
Irvine, CA 92697
www.ics.uci.edu/~rharihar
RHARIHAR@ics.uci.edu
I am a graduate student researcher and I work in the RESCUE project at UCI. My advisor is Prof. Sharad Mehrotra. I obtained a M.S. in Spatial Information Science and Engineering from the University of Maine in 2001 and a bachelor's degree in Geoinformatics from Anna University, India in 1999.
Research
My main research interests are Geographic Information Systems (GIS), GIS source discovery on the web, spatial-keyword (GIS + keyword information) indexing and query processing, data-mining algorithms for location information. During the course of my Ph.D., I have contributed to several research projects and system development.
Projects
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1. RESCUE: RESCUE stands for "Responding to Crisis and Unexpected Events". The main objective of RESCUE it to use information technology solutions to radically change the way of response mechanisms to large scale disaster events. This interdisciplinary project brings computer scientists, social scientists, engineers, and public agencies together and has initiated number of research projects such as SAMI, Pisa, SATware, Dissemination, etc.
I have been involved with the SAMI project, which stands for "Situational Awareness from Multimodal Input". The goal of SAMI is to capture, transform, fuse, and analyze multi-modal information from heterogeneous sources and create situational awareness during events such as disasters. Access to GIS data plays a critical role in many anlaysis and planning tasks during and after disasters. Within SAMI, I am working on addressing the challenges of GIS source discovery.
A number of testbeds to evaluate the research solutions have been developed as part of RESCUE. One such testbed is called CAMAS that monitors and creates situation awareness for UCI campus events. I was involved in developing a GIS visualization system for this testbed.
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2. GIS Discovery: Millions of GIS data sources proliferate on the web. These data sources are used in a range of applications, such as, emergency response, planning and analysis tasks, by various public and private agencies. Currently, there are no search mechanisms that can discover such sources in an effective manner. As searching for GIS data go beyond the realm of simple keywords, new challenges need to be addressed. In this project, we address various research challenges to discover GIS sources on the web for user queries. We develop a prototype search engine incorporating the techniques developed in this project.
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3. Lachesis: Nowadays, personal handhelds are fitted with location tracking mechanisms such as GPS, Wi-Fi, that can accurately collect location information of a person, called as "location tracks". Such tracks when properly analyzed contain semantically rich personal information. In this project we develop data-mining and modeling algorithms to extract personal information about a person and later use them to provide a number of useful services. This project was carried out at Microsoft Research in 2003 as part of my summer internship.
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Publications
Conferences and Workshops [DBLP Entry]
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1. Ramaswamy Hariharan, Bijit Hore, Sharad Mehrotra. Discovering GIS Sources on the Web using Summaries, To appear in Joint Conference on Digital Libraries (JCDL 2008), June 2008. [PDF - Tech Report]
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2. Ramaswamy Hariharan, Bijit Hore, Chen Li, Sharad Mehrotra. Processing Spatial-Keyword (SK) Queries in Geographic Information Retrieval (GIR) Systems, 19th Int'l Conference on Scientific and Statistical Database Management (SSDBM 2007), July 2007. [PDF]
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3. Yiming Ma, Dmitri V. Kalashnikov, Ramaswamy Hariharan, Sharad Mehrotra, Nalini Venkatasubramanian, Naveen Ashish, Jay Lickfett. On-Demand Information Portals for Disaster Situations, IEEE Int'l Conference on Intelligence and Security Informatics (ISI 2007), May 2007, pp. 133-136. [PDF]
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4. Dmitri V. Kalashnikov, Yiming Ma, Sharad Mehrotra, Ramaswamy Hariharan, Carter Butts. Modeling and Querying Uncertain Spatial Information for Situational Awareness Applications, 14th ACM Int'l Symposium on Geographic Information Systems (ACM-GIS 2006), November 2006, pp. 131-138. [PDF]
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5. Dmitri V. Kalashnikov, Yiming Ma, Sharad Mehrotra, Ramaswamy Hariharan. Index for Fast Retrieval of Uncertain Spatial Point Data, 14th ACM Int'l Symposium on Geographic Information Systems (ACM-GIS 2006), November 2006, pp. 195-202. [PDF]
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6. Ramaswamy Hariharan, Michal Shmueli-Scheuer, Chen Li, Sharad Mehrotra. Quality-Driven Approximate Methods for Integrating GIS Data, 13th ACM Int'l Symposium on Geographic Information Systems (ACM-GIS 2005), November 2005, pp. 97-104. [PDF]
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7. Ramaswamy Hariharan, John Krumm, Eric Horvitz. Web-Enhanced GPS, First International Workshop on Location and Context-Awareness (LoCA 2005), May 2005, pp. 95-104. [PDF]
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8. John Krumm, Ramaswamy Hariharan. TempIO: Inside/Outside Classification with Temperature, Second International Workshop on Man-Machine Symbiotic Systems, November 2004, pp. 241-250 (invited paper). [PDF]
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9. Ramaswamy Hariharan, Kentaro Toyama. Project Lachesis: Parsing and Modeling Location Histories, Third International Conference on Geographic Information Science (GIScience 2004), October 2004, pp. 106-124. [PDF]
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10. Ramaswamy Hariharan, Kathleen Hornsby. Modeling Intersections of Geospatial Lifelines, First International Conference on Geographic Information Science (GIScience 2002), October 2000 (extended abstract). [PDF]
Demos
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1. Dmitri V. Kalashnikov, Yiming Ma, Sharad Mehrotra, Ramaswamy Hariharan, Nalini Venkatasubramanian, Naveen Ashish. SAT: Spatial Awareness from Textual Input, 10th Int'l Conference on Extending Database Technology (EDBT 2006), March 2006, pp. 1159-1163. [PDF]
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2. Sharad Mehrotra, Carter Butts, Dmitri V. Kalashnikov, Nalini Venkatasubramanian, Kemal Altintas, Ramaswamy Hariharan, Haimin Lee, Yiming Ma, Amnon Meyers, Jehan Wickramasuriya, Ron Eguchi, Charles Huyck. CAMAS: A Citizen Awareness System for Crisis Mitigation, ACM SIGMOD Int'l Conference on Management of Data (SIGMOD 2004), June 2004, pp. 955-956. [PDF]
Patents Granted
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1. Sensing and analysis of ambient contextual signals for discriminating between indoor and outdoor locations. U.S. Patent No. 7,327,245. February, 5, 2008.
Dissertations
1. Ramaswamy Hariharan: Reasoning about Intersections of Geospatial Lifelines, M.S. thesis, Department of Spatial Information Science and Engineering, University of Maine, 2001. [PDF]
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Resume
My expected graduation is August 2008. Resume formats: [PDF], [DOC]
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