pdk@uklirb.informatik.uni-kl.de (workshop organizers) (10/26/90)
Call for Papers PDK '91 INTERNATIONAL WORKSHOP on PROCESSING DECLARATIVE KNOWLEDGE -- Representation and Implementation Methods -- July 1-3, 1991 Kaiserslautern, Germany Background: Declarative representation formalisms have long constituted the kernels of AI languages. Their high description level facilitates readability, maintenance, and parallelization of knowledge bases; their orientation toward logic enables clear semantics. This becomes especially important when several formalisms are used in a 'hybrid' fashion, as the amalgamation of sublanguages is simplified. However, the processing of large declarative knowledge bases is becoming efficient only with the use of modern implementation techniques. For instance, the increased gap to von Neumann machines may be bridged by (global) static analysis and (multi-stage) transformation/compilation of the representation formalisms. Experimental methods for most representation and implementation layers exist, which should gradually enter practical AI, e.g. via expert-system shells. Scope: This workshop will provide an opportunity to present promising approaches for processing declarative knowledge, to demonstrate implemented systems, and to meet with AI practitioners. Also welcome are well-founded critiques of declarative-knowledge processing (e.g. from procedural, object-oriented, or connectionist points of view). Besides representation formalisms on the basis of horn-logic programming it is possible to present, among others: more general inference rules (backward/forward chaining), concept-description languages (subsumption procedures), as well as constraint or constraint-logic-programming systems (propagation algorithms). Regarding implementation, all recent interpretation and especially compilation techniques will be of interest, e.g.: abstract interpretation, partial evaluation, rule compilation, and WAM technology. Paper Submission: Please submit four (4) copies of papers written in English by 1 March 1991 (not via email). If electronic mail is available, additionally email an ASCII version of the abstract. Refereeing will take place in two categories: Long papers of max. 20 pages for full-blown research results, short papers of up to 6 pages for concise presentations and partial results. In both categories we expect original work. Authors will be notified of acception or rejection of submitted papers by 30 April 1991, the camera-ready revisions are due by 10 June 1991. Applications for system presentations consisting of a system mini-description of 1-3 pages as well as a specification of the hardware/software required should arrive by 3 June 1991. Please direct contributions and requests to the following address: PDK DFKI GmbH P.O. Box 2080 6750 Kaiserslautern, F. R. Germany FAX: +49-631-205-3210 email: pdk@informatik.uni-kl.de Preprints of refereed papers will be produced for the workshop, and a proceedings publication is scheduled immediately afterwards. Associated Societies: The workshop is organized by the German Research Center for Artificial Intelligence (DFKI) in cooperation with the Association for Logic Programming (ALP) and the Gesellschaft fuer Informatik e.V. (GI). Important Dates: 1 March 1991: Deadline for submission of papers 30 April 1991: Notification of acceptance or rejection 3 June 1991: Deadline for application of system demonstrations 10 June 1991: Camera-ready papers 1-3 July 1991: Workshop Program Committee: Hassan Ait-Kaci, DEC Paris Hans-Juergen Appelrath, University of Oldenburg Woody Bledsoe, University of Texas at Austin Egon Boerger, University of Pisa Harold Boley, DFKI Kaiserslautern Maurice Bruynooghe, Katholieke Universiteit Leuven Tim Finin, Unisys Paoli Herve Gallaire, Bull Paris Jan Grabowski, Humboldt University Berlin Alexander Herold, ECRC Munich Robert Kowalski, Imperial College London Hans Langmaack, University of Kiel Jean-Louis Lassez, IBM Yorktown Heights Michael M. Richter, DFKI Kaiserslautern (Chair) Erik Sandewall, University of Linkoping John Taylor, Hewlett Packard Bristol Andrei Voronkov, Int. Lab. of Intelligent Systems Novosibirsk