My main areas of research are in Database and Information Systems. Some of my particular interests are in the following topics (note about manuscripts here provided and other relevant links):

  • Semantic Data Integration
  • Semantic Desktop for Personal Information Management
    • A Multi-Ontology Approach for Personal Information Management (with Huiyong Xiao). 1st Workshop on The Semantic Desktop - Next Generation Personal Information Management and Collaboration Infrastructure, Galway, Ireland, November 2005 (in association with ISWC).
    • Semantically-Driven Multimedia Querying and Presentation (with Olga Sayenko). Managing Multimedia Semantics, Idea Group Publishing, 2005.
    • Semantic Organization of Multimedia Data for Meaningful Display (with Olga Sayenko). HCI International Conference, Las Vegas, NV, 2005.
    • A Layered Framework Supporting Personal Information Integration and Application Design for the Semantic Desktop (with Huiyong Xiao), VLDB Journal, vol 17, no. 6, pp 1385-1406, November 2008.
  • Schema and Ontology Alignment
  • Semantic Web and Security
  • Geospatial Information Systems
    • Object Interoperability for Geospatial Applications. First Semantic Web Working Symposium, SWWS, Stanford, California, 2001.
    • Querying Heterogeneous Land Use Data: Problems and Potential (with Nancy Wiegand, Daniel Patterson, Naijun Zhou, Steve Ventura). dg.o 2002, Los Angeles, California, 2002.
    • Handling Semantic Heterogeneities using Declarative Agreements (with Afsheen Rajendran, William Sunna, and Nancy Wiegand). ACM GIS 2002.
    • A Web Query System for Heterogeneous Geospatial Data (with Nancy Wiegand, Naijun Zhou). Scientific and Statistical Database Management, SSDBM, July 2003, pp. 262-265.
    • Data Integration for Querying Geospatial Sources (with Huiyong Xiao). Geospatial Services and Applications for the Internet, eds. John Sample, Kevin Shaw, Shengru Tu, and Mahdi Abdelguerfi, Springer, pages.113-137, 2008.
  • User Interfaces for Multimedia Information Systems
    • A User Interface for Distributed Multimedia Database Querying with Mediator Supported Refinement (with Kim James). International Database Engineering and Applications Symposium, IDEAS '99, Montreal, Canada, pp. 433-441, IEEE Press, August 1999.
    • A Framework for the Dynamic Presentation of Fused Multimedia Databases (with Haiyan Lin, Yuan Feng Huang). International Workshop on Multimedia Information Systems, Ischia, Italy, pp.13-22, 2003.
    • A Layered Architecture for the Exploration of Heterogeneous Information Using Coordinated Views (with Yuan Feng Huan). IEEE Visual Languages, pp. 11-18, 2004.
  • Visualization for the Semantic Web
    • Web Rendering Systems: Techniques, Classification Criteria, and Challenges (with Tiziana Catarci and Stephen Kimani). Visualizing the Semantic Web, eds. V. Geroimenko and C. Chen, Springer Verlag, 2002.
  • Visual Query Languages
    • Implementation of a Constraint-Based Visualization System (with Peter Leveille, IEEE Visual Languages, pp. 13-20, 2000). Best Paper Award.
    • As You Like It: Personalized Database Visualization Using a Visual Language (with Peter Leveille, Journal of Visual Languages and Computing, 2001).
  • Information and Algorithm Visualization
    • Visualizing Geometric Algorithms over the Web (with James Baker, Giuseppe Liotta, and Roberto Tamassia, Computational Geometry: Theory and Applications, 12(1-2), pp. 125-152, 1999).
  • Graph Drawing, and in particular Declarative or Contraint-based Graph Drawing
    • Graph Drawing Tutorial (with Roberto Tamassia)
    • 3D Graph Drawing with Simulated Annealing (with Joseph P. Twarog). Graph Drawing 1995: 162-165
    • Drawing Graphs by Example Efficiently: Trees and Planar Acyclic Digraphs (with Ashim Garg). Graph Drawing 1994: 404-415
  • Web Information Systems

Other Links of Interest

Note: The manuscripts provided here are preliminary. The final version of the papers can be obtained from the named sources.

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