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Logic Programming and Distributed Knowledge Management (ALP-UK tutorial/workshop at PA Expo) Tuesday 20th April 1999 ALP-UK is organizing a one day tutorial/workshop on the contribution of Logic Programming to Knowledge Management, with emphasis on the case where the knowledge is heterogeneous and distributed across different systems and departments in an organization. The event is co-sponsored by ALP-UK, ALP and Compulog-net. The speakers will include: M R Genesereth, Stanford University Semantic Integration of Heterogeneous Databases: The Relational Logic Approach V S Subramanian, University of Maryland "IMPACT: Interactive Maryland Platform for Agents Collaborating Together" Additional contributions will also be organized; proposals are welcome, in the first place to Bob Kowalski Department of Computing Imperial College of Science, Engineering and Medicine 180 Queen's Gate London SW7 2BZ UK [log in to unmask] More detailed information of the two contibutions listed above: Michael R. Genesereth Stanford University Semantic Integration of Heterogeneous Databases: The Relational Logic Approach Abstract: In recent years there has been a marked increase in the amount of "structured" data available on the world's computer networks, and all indicators suggest that this trend will continue in the years to come. Unfortunately, accessing this information in an integrated way is complicated by "semantic heterogeneity" among the data sources, i.e. differences in their schemas and vocabulary. In this presentation, we will look at this problem in detail. We will see why relational algebra is inadequate for the task and why relational logic, being more expressive, solves the problem. We will look at one particular data integration system, called Infomaster, and a variety of its applications. Finally, we will discuss some of the practical problems in developing large scale "datawebs", and we will examine the prospects for building a fully integrated "World Information Network", essentially a World Wide Web for databases. Bio: Michael Genesereth is an associate professor in the Computer Science Department at Stanford University. He received his Sc.B. in Physics from M.I.T. and his Ph.D. in Applied Mathemetics from Harvard University. Prof. Genesereth is most known for his work on computational logic and applications of that work in enterprise computing. He was program chairman for the 1983 AAAI conference and the 1997 International World Wide Web Conference. He is the current director of the Center for Information Technology at Stanford. V.S.Subrahmanian University of Maryland IMPACT: Interactive Maryland Platform for Agents Collaborating Together I will present an overview of the IMPACT Project that provides a platform and environment for agent and software interoperability. After the quick overview, I will go into details about a concept called Agent Programs using which, the way an agent should act in various situations can be declaratively specified by the creator of that agent. Agent Programs may be built on top of arbitrary pieces of software code and may be used to specify what an agent is obliged to do, what an agent may do, and what an agent may not do. I will define several successively more sophisticated and epistemically satisfying declarative semantics for agent programs, and study the computation price to be paid (in terms of complexity) for such epistemic desiderata. We further show that agent programs cleanly extend well understood semantics for logic programs, and thus are clearly linked provide a demonstration. I will briefly describe two major ongoing applications --- one for the US Army's "Virtual Operations Center" logistics effort, and the other with a leading aircraft manufacturer to avoid the "Controlled Flight into Terrain" phenomenen which is the leading cause of airline fatalities. (This talk reflects joint work with Thomas Eiter). Bio: V.S. SUBRAHMANIAN received his PhD in Computer Science from Syracuse University in 1989. Since then, he has been on the faculty of the Computer Science Department at the University of Maryland, College Park, where he currently holds the rank of Associate Professor. He received the NSF Young Investigator Award in 1993 and the Distinguished Young Scientist Award from the Maryland Academy of Science in 1997. He has worked extensively in knowledge bases, bringing together techniques in artificial intelligence and databases. Prof. Subrahmanian has over 100 published/accepted papers, He has edited two books, one on nonmonotonic reasoning (MIT Press) and one on multimedia databases (Springer). He has co-authored an advanced database textbook (Morgan Kaufman, 1997), and has written a a textbook on multimedia databases (Morgan Kaufman, Jan. 1998). He has given invited talks and served on invited panels at several national and international conferences. In addition, he has served on the program committees of various conferences. Engineering, AI Communications, Multimedia Tools and Applications, Journal of Logic Programming and Distributed and Parallel Database Journal. He serves on DARPA's Executive Advisory Council for the Advanced Logistics Program. -- Francesca Toni Department of Computing, Imperial College 180 Queen's Gate, London SW7 2BZ, UK Tel: +44 (0)171 594 8228 Fax: +44 (0)171 589 1552 URL: http://www-lp.doc.ic.ac.uk/UserPages/staff/ft/ft.html %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%