ALONZO CHURCH (1903 - 1995) Alonzo Church, who was born on June 14, 1903 in Washington, D.C., died Friday, August 11, 1995 in Hudson, Ohio at the age of 92. Memorial contributions may be made to the Association for Symbolic Logic (1409 West Green Street, Urbana, IL 61801) and marked "For the Alonzo Church Fund". LOGICAL FOUNDATIONS OF MATHEMATICS, COMPUTER SCIENCE AND PHYSICS -- Kurt Goedel's Legacy (GOEDEL'96) August 25-29, 1996, Brno, Czech Republic (birthplace of Kurt Goedel). * Topics. The aim of the conference is to hold tribute to Kurt Goedel by arranging a scientific event presenting a forum for papers relevant to foundational aspects of Logic in Mathematics, Computer Science, Philosophy and Physics -- areas influenced by Kurt Goedel's work. Both original scientific papers are sought for the conference, as well as research work in history connected with Goedel's work. A session is planned to honour Professor Hao Wang, one of Goedel's closest collaborators, who died on May 13 this year. * Programme Committee. Z. Adamowicz, Warsaw; J. Bicak, Prague; L. Bukovsky, Kosice; D. de Jongh, Amsterdam; J. Grygar, Prague; E. Koehler, Vienna; J. Krajicek, Prague; P. Hajek (chair), Prague; A. Leitsch, Vienna; D. Mundici, Milano; G. Mueller, Heidelberg; J. Paris, Manchester; C. Parsons, Harvard. * Contact Addresses. Programme and submissions (full draft papers): Petr Hajek, Institute of Computer Science, Academy of Sciences of the Czech Republic, Pod vodarenskou vezi 2, 182 07 Prague, Czech Republic. E-mail: email@example.com. Telephone: +42-2-66051111, +42-2-66414244, +42-2-66413418. Fax: +42-2-8585789. Organization: Jiri Zlatuska, Faculty of Informatics, Masaryk University, Buresova 20, 602 00 Brno, Czech Republic. E-mail: firstname.lastname@example.org. Telephone: +42-5-41213125, +42-5-41211646, +42-5-41213219. Fax: +42-5-41212747. * Submission Deadline. January 14, 1996. WORKSHOP: OPERATIONAL & DENOTATIONAL SEMANTICS OF LOGIC PROGRAMMING: EXTENDING PROOF- AND MODEL-THEORETIC ANALYSES December 8th, 1995, Portland, Oregon (USA) * Topics. The aim of this workshop is to bring together researchers in the areas of proof theory, logic programming language design and programming language semantics. The specific technical issues addressed by this workshop will include: Proof-theoretic definitions of logic programming languages; Proof-theoretic interpretations of aggregate operators, including negation-as-failure; Operational semantics of logic programs: requirements and methods; Nondeterminism, process theory and powerdomains: towards a basis for the denotational semantics of logic programming; Proof theory and (denotational) semantics as common frameworks for functional and logic programming. * Associated Conference. The workshop is in association with ILPS'95 (International Logic Programming Symposium) * Submissions. Papers must not exceed 15 pages (approximately 5000 words) and are due September 15. Authors are encouraged to submit papers via email, in either Postscript or (self-contained) LaTeX/TeX format. If email is unavailable or inconvenient, six paper copies should be submitted. Submissions should include the name, address, fax, and email address of a contact author. Prospective authors are encouraged to send an expression of interest via email on or before September 1st, including the title and authors of the paper. * Contact address. James Harland, Department of Computer Science, Royal Melbourne Institute of Technology, GPO Box 2476V, Melbourne, 3001, Australia. Email: email@example.com. Phone: +613 9660 2045. Fax: +613 9662 1617. HIGHER-ORDER ALGEBRA, LOGIC AND TERM REWRITING (HOA '95) 21st-22nd September 1995, Paderborn, GERMANY [Previous announcement in Newsletter 21] * Updates. Visit the WWW page for the final program and registration info. 3RD INT'L WORKSHOP ON TEMPORAL REPRESENTATION AND REASONING (TIME-96) May 19-20, 1996, Key West, Florida, USA * Topics. The purpose of this workshop is to bring together active researchers in the area of temporal representation and reasoning in Artificial Intelligence. The workshop will be conducted as a combination of paper presentations, a poster session, an invited talk, and panel discussions. The format will provide ample time for discussions and exchange of ideas. Submission of high quality papers describing mature results or on-going work are invited for all areas of temporal representation and reasoning, including, but not limited to: temporal logics and ontologies, temporal languages and architectures, continuous versus discrete time, point versus interval representations, expressive power versus tractability, belief and uncertainty in temporal knowledge, temporal databases and knowledge bases, temporal learning and discovery, reasoning about actions and events, time and nonmonotonism, time and constraints, time in problem solving (e.g. diagnosis, qualitative physics,...), multiple agents, communication, and synchronization, applications. * Associated Meeting. The workshop is planned as a two day event to immediately precede FLAIRS-96 (Ninth Annual Florida Artificial Intelligence Research Symposium, May 20-22). Workshop participants are also encouraged to submit papers to FLAIRS and attend the conference. * Submissions. Accepted papers will be invited for full presentation or a poster presentation. All submissions must be received by December 5, 1995. Prospective participants should submit 5 copies of a 6-8 page paper (indicating the selected areas), to be received by December 5, 1995, to: TIME-96, Luca Chittaro and Angelo Montanari, Dipartimento di Matematica e Informatica, Universita' di Udine, Via delle Scienze, 206, 33100 Udine -- ITALY. Or preferably, submit by anonymous FTP a postscript version of the paper to: bach.dimi.uniud.it (188.8.131.52), directory: pub/time96. After submitting electronically, please communicate the title, area, and authors of the paper by sending an e-mail to firstname.lastname@example.org * Program Committee. Frank Anger, Fahiem Bacchus, Mark Boddyk, Luca Chittaro (co-chair), Jan Chomicki, Philippe Dague, Tom Dean, Mark Denecker, Jennifer Elgot-Drapkin, Marcelo Finger, Michael Fisher, Dov Gabbay, Malik Ghallab, Anthony Galton, Michael Gelfond, Michael Georgeff, Peter Haddawy, Pat Hayes, Peter Ladkin, Gerard Ligozat, Angelo Montanari (co-chair), Robert Morris, Bernhard Nebel, Don Perlis, Han Reichgelt, Raymond Reiter, Mark Reynolds, Maarten de Rijke, Erik Sandewall, Marek Sergot, Murray Shanahan, Peter van Beek, Andre Trudel. CONF ON THE PRACTICAL APPLICATION OF PROLOG (PAP'96) April 22-26, 1996, London, UK * Topics The PAP series of conferences is the world's leading showcase for Prolog applications and systems. Now in its fourth year the conference continues to grow, and to demonstrate the benefits of this important technology, including increased productivity, reduced maintenance, and flexible solutions which can easily adapt to changing business needs. We invite you to submit papers or industrial reports describing applications in the areas of logic and constraint logic programming. Papers can be of any length, and on virtually any topic, but as these conferences are aimed at demonstrating the benefits of the technology for industry and commerce, preference will be given to papers describing fielded applications in the business arena. * Submissions. Five copies of papers should be submitted by November 17th 1995. * Demonstrations, Workshops and Tutorials. The conference also provides an opportunity for software vendors and developers to demonstrate Prolog systems. You are invited to contact the organiser to arrange for your application to be exhibited at the event. If you would like to organise a workshop or tutorial, or wish to see a particular topic covered, please contact us. * Programme Committee. Howard Arner, Ad-Track, USA; Pedro Barahona, U. of Lisbon, Portugal; Oskar Bartenstein, IF Computer, Japan; Barry Crabtree, British Telecom, UK; Sam Daniel, Motorola, USA; Pierre Deransart, INRIA, France; John Fox, ICRF; Markus Fromherz, Xerox PARC, USA; xeAlexander Herold, ECRC, Germany; Kazuyoshi Honda, Tokyo Gas Company, Japan; Leo Jensen, PDC, Denmark; Philip Kay, COSYTEC, France; Andr=E9 Marien, BIM, Belgium; Yossi Nygate, AT & T; David Pearce, DFKI, Germany; Luis Moniz Pereira, U. of Lisbon, Portugal; Peter Reintjes (chair), IBM, USA; Al Roth, Prolog Management Group; Thomas Sjoland, SICS, Sweden; Leon Sterling, Case Western Reserve University; xeHans-Juergen Stenger, Siemens Nixdorf, Germany; Peter Szeredi, IQSOFT, Hungary; Patrick Taillibert, Dassault Electronique, France; Michel Van Caneghem, PrologIA, France; Phil Vasey, LPA, UK; Andrew Verden, IF Computer, Germany; Mark Wallace, ICL and Imperial College, UK. * Further Information. Al Roth. Tel: +44 (0) 1253 358081. Fax: +44 (0) 1253 353811. E-mail: email@example.com. WWW: (see above). CONF ON THE PRACTICAL APPLICATION OF CONSTRAINT TECHNOLOGY (PACT'96) April 22-26, 1996, London, UK * Topics. The PACT conference and exhibition is the premier forum for constraint applications and systems. Now in its second year the conference builds on the success of PACT'95, and clearly demonstrates the benefits of constraints for solving real-world problems. PACT'96 will focus on the industrial exploitation of Constraint Programming, and explore the realisable benefits for business, and future trends for this important technology. We invite you to submit a paper or industrial report describing fielded applications in the area of constraint programming. Papers can be any length, and on any topic. Note that as PACT conferences are aimed at demonstrating the benefits of the technology for industry and commerce, preference will be given to papers which describe fielded applications. * Submissions. Five copies of papers for PACT'96 should be submitted by November 17th, 1995. * Demonstrations, Workshops and Tutorials. The conference provides an opportunity for software vendors and developers to demonstrate constraint systems. You are invited to contact the organiser to arrange for your application to be exhibited at the event. If you would like to organise a workshop or tutorial or wish to see a particular topic covered, again please contact the organiser. * Exhibition. The multi-vendor exhibition will demonstrate live applications and cutting-edge development systems. * Programme Committee. Akira Aiba, New Generation Computer Technology; Bjorn Freeman-Benson's, Object Technology International; Barry Crabtree, British Telecom; Jean-Marc David, Renault; Mehmet Dincbas, COSYTEC; Alexander Herold, ECRC; Joxan Jaffar, University of Singapore; James Little, Brunel University; Jean-Francois Puget, ILOG; Peter Reintjes, IBM; Al Roth, Prolog Management Group; Gert Smolka, DFKI; Peter Stuckey, University of Melbourne; Erik Tiden, Siemens; Edward Tsang, University of Essex; Michel Van Carnegem, PrologIA; Pascal Van Hentenryck, Brown University; Mark Wallace (Chair), ICL ; Vijay Saraswat, Xerox PARC. * Further Information. Al Roth. Phone: +44 (0)1253 358081. Fax: +44 (0)1253 353811. E-mail: firstname.lastname@example.org. WWW: (see above). ADVANCES IN THE THEORY OF COMPUTATION AND COMPUTATIONAL MATHEMATICS This is a serial (in book form) publishing surveys with some original content on mathematical aspects of "computation", including theory of computation. * Editor-in-Chief. Charles Dunham, Computer Science Department, The University of Western Ontario, London, CANADA N6A 5B7. E-mail: email@example.com * Editors. Members of the editorial board with theory of computation interests are the editor-in-chief, and Helmut Jurgensen of the same address. We are looking for volume editor who would take responsibility for producing a 6-12 article volume on a special topic of their choice. Submit a proposal to the editor or write for details. The publisher is ABLEX, Norwood, New Jersey. NONSTANDARD QUERIES AND NONSTANDARD ANSWERS. R.Demolombe and T. Imielinski (eds.): (Studies in Logic and Computation No. 3) Oxford University Press, 1994, 288 pages, Hardback, Price: 45.00 L. ISBN 0-19-853852-9. * Summary. Future Data and Knowledge Base Systems will require new functionalities: richer data modelling capabilities, more powerful query languages and new concepts of the query answers. Future query languages will include functionalities such as hypothetical reasoning, abductive reasoning, modal reasoning, and metareasoning involving knowledge and belief. Intensional answers will lead to cooperative query answering in which the answer to a query takes under consideration user's expectations. Non-classical logic plays an important role in this book for the formalization of new queries and new answers. It is shown how logic allows to give precise definitions for concepts like: cooperative answers, subjunctive queries, or reliable sources of information, and gives a precise framework for reasoning about these complex concepts. It is worth noting that adavances in knowledge management are not just an application domain for existing results in logic, but also require new developments in logic. The book is organized into 10 chapters which cover the areas of cooperative query answering (the first three chapters), metareasoning and abductive reasoning (chapters 5 to 7) and finally, hypothetical and subjunctive reasoning (last three chapters). * Contents. T. Gaasterland, P. Godfrey, J. Minker: An overview of cooperative answering. W.Chu, Q.Chen, M.Merzbacher: Cobase: a cooperative database sytem; A. Hemerly, M. Casanova, A. Furtado: Exploiting user models to avoid misconstruals; R.Nossum: Modal logics for practical reasoning; R. Demolombe, A. Jones: Deriving answers to safety queries; P. Mathieu, J-P. Delahaye: Abductive reasoning in three-valued logic for knowledge bases; D.Gabbay, J.Pitt, R.Kempson: Labelled abduction and relevance reasoning; A.Bonner: Hypothetical reasoning with intuitionistic logic; C.Boutilier: A modal analysis for subjunctive queries; G.Grahne, A.Mendelzon: Updates and subjunctive queries.