What's New | Research | Teaching | Service | Honors

 Prashant Doshi
  Assistant Professor
  Dept. of Computer Science
  543, Boyd GSRC
  Athens, GA 30602

  Phone: 706-583-0827
  Fax: 706-583-0827
  Email: pdoshi AT cs DOT uga DOT edu

I am an Assistant Professor in the Dept. of Computer Science at The University of Georgia, since August 2005. I received my Ph.D. from the Dept. of Computer Science of the University of Illinois at Chicago in 2005, and my M.S. from the MCS Dept. of Drexel University, Philadelphia, in 2001.

I am affiliated with the LSDIS lab and the AI Center at UGA.

What's New!

(08/14/08) I presented a poster at the NIH NCBC All Hands Meeting 2008 in Bethesda, Maryland. See my poster.
(08/14/08) I received a grant from AFOSR for a project titled "Individual Decision Making in Large-Scale and Uncertain Multiagent Settings". Collaborators on the grant include Adam Goodie (Co-PI) from the Psychology dept. at UGA.
(07/30/08) I served on the "Browsing the Physical World in Real Time" panel at the Microsoft Research Faculty Summit, Seattle, 2008. See my talk.
(04/30/08) I received a grant from NIH (R01 NHLBI) for a project titled "Semantics and Services enabled Problem Solving Environment for Trypanosoma-cruzi". Collaborators on the grant include Amit Sheth (PI, WSU), Rick Tarleton (Sr. Inv, UGA) and NCBO at Stanford.
(04/18/08) My Ph.D. student, Haibo Zhao, wins a UGA Dissertation Completion Award.
(02/12/08) I am co-organizing the second WSCA workshop (special theme: dynamic service composition and user steering) to be held at SCC 2008.
(12/17/07) With Zinovi Rabinovich, I will be conducting a tutorial on 'Decision Making in Time Extended Multiagent Interactions' at AAMAS, 2008. View the flyer and the tutorial slides.
(07/18/07) I served on the SensorNet 2.0 panel at the Microsoft Research Faculty Summit, 2007. See my talk.

Research

    Projects:

  • Multi-Agent Systems

    • Decision making: We have developed a new framework for individual decision-making in multi- agent settings, called Interactive POMDPs (I-POMDPs). I-POMDPs generalize POMDPs to multi-agent settings by combining it with concepts from game theory. I investigate the properties of this framework, develop exact and approximate solution methods including graphical models, and analyse equilibration within this framework. I collaborate with Adam Goodie Adam Goodie UGA, Piotr Gmytrasiewicz (Univ. of Illinois, Chicago) and Yifeng Zeng (Aalborg Univ., Denmark) on work in this area. (See publications and talks)

      Current and past funding: AFOSR, UGA Research Foundation

  • Services Oriented Computing

    • Composition of Web Services: My research in this area investigates automatic composition of Web processes using Web services as the underlying components. I focus on planning, and in particular, decision-theoretic planning frameworks such as Markov decision processes and its generalizations. In the past, I have collaborated with Richard Goodwin (IBM Research) and Rama Akkiraju (IBM Research) on work in this area. (See publications and talks)

    • Adaptive Web Service Compositions: In this area, my research addresses the challenges of adapting Web processes to volatile and dynamic environments. In particular, my research focuses on maintaining the optimality of the Web processes in such realistic environments. I collaborate with Biplav Srivastava (IBM IRL), Amit Sheth (WSU), John Miller (UGA), and Kunal Verma (Accenture Labs) in this work. (See publications and talks)

      Current and past funding: NIH, UGA Research Foundation

  • Semantic Web

    • Ontology Alignment: Ontologies are the foundation of the Semantic Web. Since ontologies are emerging in a decentralized manner, mapping similar concepts among ontologies that address similar domains, called alignment, is vital to allow the ontologies to be used in a consistent manner. My research involves developing probabilistic approaches for automatic ontology alignment. (See publications and talks)

      Current and past funding: NIH, Microsoft SensorMap 2007

     Recent Publications and Demonstrations: My DBLP
  • Yifeng Zeng and Prashant Doshi, "An Information-Theoretic Approach to Model Identification in Interactive Influence Diagrams", in IEEE/WIC/ACM IAT, 2008 [paper] (acceptance: 41/221=18.5%)
  • Prashant Doshi, Yifeng Zeng and Qiongyu Chen, "Graphical Models for Interactive POMDPs: Representations and Solutions", in Journal of Autonomous Agents and Multiagent Systems, 2008, [paper]
  • Ravikanth Kolli and Prashant Doshi, "OPTIMA: Tool for Ontology Alignment with Application to Semantic Reconciliation of Sensor Metadata for Publication in SensorMap", in ICSC, demo paper, 2008 [paper] [demo]
  • Yunzhou Wu and Prashant Doshi, "Making BPEL Flexible -- Adapting in the Context of Coordination Constraints Using WS-BPEL", in SCC Research track, 2008 [paper] (acceptance: 18%)
  • Prashant Doshi and Dennis Perez, "Generalized Point Based Value Iteration for Interactive POMDPs", in AAAI, 2008 [paper] (acceptance: 227/937=24%)
  • John Harney and Prashant Doshi, "Speeding Up Web Service Composition with Volatile External Information", in International Workshop on CSSSIA, WWW, 2008 [paper] (acceptance: 38.5%)
  • Yifeng Zeng and Prashant Doshi, "Toward Robust Model Identification in Interactive Influence Diagrams Using Mutual Information", in MSDM Workshop, AAMAS, 2008 [paper]
  • Haibo Zhao and Prashant Doshi, "Haley: An End-to-End, Scalable Web Service Composition Tool", in WWW, Developer's Track, 2008 [paper] [demo] (acceptance: 22/55 = 40%)
  • Yunzhou Wu and Prashant Doshi, "Making BPEL Flexible -- Adapting in the Context of Coordination Constraints Using WS-BPEL", in WWW, poster, 2008 [paper] (acceptance: 116/240 = 48.3%)
  • John Harney and Prashant Doshi, "Speeding Up Web Service Composition With Volatile External Information", in WWW, poster, 2008 [paper] (acceptance: 116/240 = 48.3%)
  • Dennis D. Perez and Prashant Doshi, "Approximate Solutions to Interactive POMDPs Using Point Based Value Iteration", in ISAIM, 2008 [paper]
  • Haibo Zhao and Prashant Doshi, "Haley: A Hierarchical Framework for Logical Composition of Web Services", in Research track, ICWS, 2007 [paper] (acceptance: 18%)
  • Girish Chafle, Prashant Doshi, John Harney, Sumit Mittal, and Biplav Srivastava, "Improved Adaptation of Web Service Compositions using Value of Changed Information", in Applications and Industry track, ICWS, 2007 [paper]
  • Yunzhou Wu and Prashant Doshi, "Regret-Based Decentralized Adaptation of Web Processes with Coordination Constraints", in Applications and Industry track, SCC, 2007 [paper]
  • Yifeng Zeng, Prashant Doshi, and Qiongyu Chen, "Approximate Solutions to Interactive Dynamic Influence Diagrams Using Model Clustering", in AAAI, 2007 [paper] (acceptance: 253/921 = 27%)
  • Prashant Doshi, "Improved State Estimation in Multiagent Settings with Continuous or Large Discrete State Spaces", in AAAI, 2007 [paper] (acceptance: 253/921 = 27%)
  • Prashant Doshi, "On the Role of Interactive Epistemology in Multiagent Planning", in AIPR, 2007 [paper] (invited paper)
  • John Harney, Prashant Doshi, "Speeding Up Adaptation of Web Service Compositions Using Expiration Times", in WWW, 2007 [paper] (acceptance: 110/767 = 14%)
  • Prashant Doshi, Yifeng Zeng, and Qiongyu Chen, "Graphical Models for Online Solutions to Interactive POMDPs", in AAMAS, 2007 [paper] (acceptance: 119/531 = 22%)
  • Prashant Doshi, "Approximate State Estimation in Multiagent Settings with Continuous or Large Discrete State Spaces", short paper, in AAMAS, 2007 (acceptance: 133/412 = 32%)
    For a complete list of publications, please see my projects above

     Students:

       Current Students
  • Muthukumaran C. (M.S.)
  • Sharon Paradesi (M.S.)
       Graduated Students
  • Ravikanth Kolli (M.S.)
  • Dennis Perez Barrenechea (M.S.)

Teaching

     Courses:

Recent Professional Service

  • I co-organized the workshop on Web Services Composition and Adaptation (WSCA) at SCC 2008. In AAMAS 2008, I conducted a tutorial on Decision Making in Extended Multiagent Interactions (see the slides). Previously, I organized a workshop on AI-Driven Technologies for Services Oriented Computing (AI-SOC) in AAAI 2006.
  • I regularly serve on the program committees of major journals, conferences and workshops related to autonomous agents such as Journal of AAMAS, AAMAS, AAAI, GTDT, MSDM and of conferences and workshops related to services computing such as SCC.

Honors & Awards

  • UIC University Fellowship for 2004-05
  • Best Summer Research Poster Award, eBusiness Dept., IBM T.J. Watson Research Center, 2002
  • Drexel University Dean's Fellowship for 1999-00