DGRC Participants Yigal Arens - DGRC Co-Director USC/Information Sciences Institute Yigal Arens is the Director of the Intelligent Systems Division at the Information Sciences Institute. His research interests are in the areas of Digital Government, intelligent access to multiple heterogeneous information sources, human-computer interfaces, multimedia interfaces, natural language understanding and generation, representation of information. His work focuses on the integration of data distributed over multiple statistical databases owned by the DOE Energy Information Administration, U.S. Bureau of the Census, Bureau of Labor Statistics, and National Center for Health Statistics. This work will be an extension of SIMS research at USC/ISI. Salvatore J. Stolfo - DGRC Co-Director Columbia University Salvatore J. Stolfo is Professor of Computer Science at Columbia University and heads the Parallel and Distributed Intelligent Systems Lab. He received his Ph.D. from NYU Courant Institute in 1979 and has been on the faculty of Columbia ever since. He has published extensively in the area of parallel computing and AI. Dr. Stolfo co-developed the first Expert Database System in the early 1980's that was widely distributed to a large number of telephone wire centers around the nation. He has lead a project that developed the 1023 processor DADO parallel computer designed to accelerate knowledge-based and pattern directed inference systems. His most recent research has been devoted to distributed data mining systems with applications to fraud and intrusion detection in network information systems. He is a member of two editorial boards and has recently co-chaired several workshops in the area of data mining, intrusion detection and the Digital Government. He served as the Chairman of Computer Science and the Director of the Center for Advanced Technology at Columbia University. He has been awarded  nine patents in the areas of parallel computing and database inference and co-founded two high-tech companies. José Luis Ambite USC/Information Sciences Institute Jose Luis Ambite research interests are on information integration, planning, databases, and knowledge representation. Within the SIMS and Ariadne projects, he developed efficient query planning techniques for mediators as an instantiation of a general approach to efficient high-quality planning called Planning by Rewriting. He received a Ph.D. in Computer Science from USC in 1998. Steven Feiner Columbia University Steven Feiner is an Associate Professor of Computer Science at Columbia University, where he directs the Computer Graphics and User Interfaces Laboratory. He received a Ph.D. in Computer Science from Brown University. His research interests include user interfaces, vvirtual environments and augmented reality, wearable computers, knowledge-based design of graphics and multimedia, information visualization, image synthesis, and hypermedia. Prof. Feiner is coauthor of Computer Graphics: Principles and Practice (Addison-Wesley, 1990) and of Introduction to Computer Graphics (Addison-Wesley, 1993). He is an associate editor of ACM Transactions on Graphics and a member of the editorial board of IEEE Transactions on Visualization and Computer Graphics, and serves on the executive boardsoof the IEEE Technical Committee on Computer Graphics and the IEEE Task Force on Human-Centered Information Systems. In 1991 he received an Office of Naval Research Young Investigator Award. Eduard Hovy USC/Information Sciences Institute Eduard Hovy's research focuses on machine translation, automated text summarization, text planning and generation, and the semi-automated construction of large lexicons and terminology banks; the Natural Language Group at ISI currently has projects in most of these areas. With regard to DGRC, Dr. Hovy's work focuses on ontology construction, by combining techniques in semi-automated cross-ontology merging, information extraction from the web, and harvesting of ontological information from dictionaries. All this work proceeds in the context of SENSUS, the 100,000-node ontology built from WordNet and used at ISI to suport machine translation, text summarization, and information retrieval. Judith Klavans Columbia University Judith Klavans is the Director of the Center for Research on Information Access and a member of the research staff of the Department of Computer Science. She is responsible for coordination and integration of research and applications in the area of the Digital Library. Her research focus is on natural language analysis as applied to automatic indexing, categorization, and summarization. Andrew Philpot USC/Information Sciences Institute Andrew Philpot is a research scientist working on the SIMS and Ariadne projects. His research interest are in artificial intelligence, information source integration and planning. He received an M.S. in Computer Science: Artificial Inteligence from Stanford University in 1990. Ken Ross Columbia University Professor Ross is an associate Professor in the computer Science Department at Columiba University. The focus of his research is database systems. Within that area, his main research topics are currently (a) Processing and optimizing complex queris for decision support applications, (b) View materialization and maintenance, and (c) Declarative database systems their theory.