ecai88@infovax.informatik.tu-muenchen.dbp.de (ecai88) (07/12/88)
From: ecai88 <ecai88%infovax.informatik.tu-muenchen.dbp.de@RELAY.CS.NET> Date: Tue, 12 Jul 88 10:08 EDT To: AIList@mc.lcs.mit.edu Subject: ECAI88 - Program The 8th ECAI 1988 is sponsored by the Gesellschaft fuer Informatik e.V. (GI), organized and hosted by the Institut fuer Informatik der Technischen Universitaet Muenchen, under the auspices of the European Coordinating Committee for Artificial Intelligence (ECCAI). Industrial Exhibition The 8th ECAI will present the latest advances of the technology and applications of AI.The industrial exhibition takes place at the MENSA during the conference, from Tuesday, August 2 to Friday, August 5, 1988. Opening: Tuesday - Thursday 9:00 - 19:00 Friday 9:00 - 15:00 _____________________________________ Invited Talks Invited Talk I: Deutsches Museum, Tuesday, August 2, 15:30 - 16:30 Jerry DeJong (Urbana Campaign): Some Thoughts on the Present and the Future of Explanation-Based Learning Room A, B, Wednesday, August 3, 17:45 - 18:45 Tom Mitchell (Carnegie Mellon): Commentator to DeJongs talk Chairperson: Y. Kodratoff Invited Talk II: Room A, B, Thursday, August 4, 9:00 - 10:00 Chris Hogger (Imperial College): PROLOG Programming Environments Room A,B, Thursday, August 4, 17:45 - 18:45 Jean Rohmer (BULL Company): Commentator to Hoggers talk Chairperson: H. Gallaire Invited Talk III: Room A, B, Friday, August 5, 9:00 - 10:00 Erik Sandewall (Linkoping): Future Developments in Artificial Intelligence - A Personal View Chairperson: M.-J. Schachter-Radig _____________________________________ Panel Sessions Panel I: Deutsches Museum, Tuesday, August 2, 16:30 - 18:00 Moderator: H. Coelho Title: Interactions among Intelligent Agents Panelmembers: J.G.Ganascia, G. Guida, G. Kiss, E. Werner, Y. Wilks Panel II: Room P, Thursday, August 4, 16:00 - 17:45 Moderator: M. Boden Title: What Is Computation? Panelmembers: A. Clark, A. Slomann, J. Siekmann Panel III: Room P, Friday, August 5, 10:30 -12:30 Moderators: P. Smets and J. Campbell Title: Applicability of Non-classical Logical Methods to Artificial Intelligence Problems. Panelmembers: not known at editorial deadline. _____________________________________ ESPRIT- Session Room P, Wednesday, August 3, 14:00 - 16:30 Chairperson: B. Lepape Subjects: 1. Introduction 2. Presentation of Projects: - Project ESB (P 96) - Project ESTEAM (P 316) - Project LOKI (P 107) 3. Research and ESPRIT _____________________________________ Workshop "AI in Medicine" Thursday, August 4, 14:00 - 18:00, Room E. Dr. Rolf Engelbrecht GSF-MEDIS Muenchen Ingolstaedter Landstrasse1 D-8042 Neuherberg, FRG Phone: ++49-89/ 31 87-53 30 EARN: ENGEL at DM0GSF11 Objective The goal of this workshop is to promote intensive interaction between the researchers in the field of medical applications of AI as well as those working in central issues inside AI. Suitable topics include, but are not limited to: - Representation of medical knowledge - Knowledge acquisition - Integration of AI and standard software (such as for statistical analysis, data base management systems) - Knowledge based systems and hospital information systems - Applications of AI in medicine - Evaluation of medical expert systems Potential participants are invited to submit an abstract on issues relating to the workshop's topics or describing their own work related to AI in medicine. Selected abstracts will be presented. Attendance is limited to 70 participants and requires a registration to ECAI. The workshop is sponsored by - AIME European Society for Artificial Intelligence in Medicine - GMDS Gesellschaft fr Medizinische Dokumentation, Informatik und Statistik Organizing Committee R. Engelbrecht, Muenchen (Chairman), M. Fieschi, Marseille, J. Fox, London, M. Stefanelli, Pavia, Th. Wetter, Heidelberg _____________________________________ Sessions Architectures and Languages 1 Chairperson: F. McCabe Room A, Thursday, August 4, 16:00-17:45 C. Martin, K. Waldhoer 16:00 BASAR : A Blackboard Based Software Architecture H. Laasri, R. Maitre, T. Mondot, F. Charpiller, J.P. Haton 16:15 ATOME: A Blackboard Architecture with Temporal and Hypothetical Reasoning R. Krickhahn, R. Nobis, A. Mhlmann, M.-J. Schachter-Radig 16:45 Applying the KADS Methodology to Develop a Knowledge Based System Nethandler K. Masuda, H. Ishizuka, H. Ivayama, K. Taki, L. Sugino 17:15 Preliminary Evaluation of the Connection Network for the Multi-PSI System Architecture and Languages 2 Chairperson: J.P. Sansonnet Room B, Friday, August 5, 10:30-12:30 P. Dixneuf, A. Meiler, M. Pocheron 10:30 ELOISE'S Heart: An Efficient Frame for Production Systeme Execution H. Boley 10:45 Iconic-Declarative Programming and Adaption Rules I. I. Dimitrov 11:00 INEX: Flexible and Efficient Objects T. Wilmes 11:30 A Typed Unification of Functional and Logic Programming - Based on Many-Valued Functions B. Barachini, N. Theuretzbacher 12:00 PAMELA: An Expert System Technology for Real-time Control Applications Cognition 1 Chairperson: B. Wielinga Room A, Wednesday, August 3, 14:00-15:45 L. Steels 14:00 Steps towards Common Sense D. Partridge, J. McDonald, V. Johnston, K. Paap 14:30 AI Programs and Cognitive Models: Models of Perceptual Processes E. Plaza, R. Lopez de Mantaras 15:00 Model-based Knowledge Acquisition for Heuristic Classification Systems A. M. Burton, N.R. Shadbolt, G. Rugg, A.P. Hedgerock 15:15 Knowledge Elication Techniques in Classification Domains Cognition 2 Chairperson: D. Partridge Room E, Thursday, August 4, 10:30-12:30 H. Lambert, L. Eshelman, Y. Iwasaki 10:30 Acquiring and Complementing the Model for Diagnostic Tasks M.-C. Rousset 11:00 On the Consistency of Knowledge Bases: The COVADIS System B.S. Doherty, J.J. Stuart 11:30 Induction and Dialogue in Specification Formalisation: an Object-based Approach J. M. Slack 12:00 Linguistic Constrains and Memory Management D. Pospelov 12:15 Modelling of Deeds and Normative Behaviour in Intelligent Systems Cognition 3 Chairperson: D. Pospelov Room A, Friday, August 5, 10:30-12:00 K. Tanaka, K. Kubota 10:30 Memory-based Learner Model and its Application to a Game Coach D. Fum, P. Giangrandi, C.Tasso 10.45 Student Modelling Techniques in Foreign Language Teaching J.H. Sumiga, B. Khazaei, J.J.A. Siddiqi 11:00 A Cognitive Model of Program Designer Behaviour P. de Greef, J. Breuker, G. Schreiber, J. Wielemaker 11:15 StatCons - Knowledge Acquisition in a Complex Domain J. Sandberg, J. Breuker, R. Winkels 11:45 Research On HELP-Systems: Empirical Study and Model Construction Demos Of Academic AI Software Demos done on Wednesday afternoon by the authors and on appointment during the conference, Rooms S1, S2. X. Tong, Z. He, R. Yu A Survey of the Expert System Tool ZDEST-2 J. E. Larsson, P. Persson An Intelligent Help System for Idpac J. Maree ENIARC: An Intelligent Explicative Expert System for Rhythm Analysis in Electro-cardiograms N. Guarino DRL: Terminologic and Relational Knowledge in Prolog M. Franova Fundamentals for a New Methodology for Inductive Theorem Proving: CM-Construction of Atomic Formulae E. Andre On the Simultaneous Interpretation of Real World Image Sequences and their Natural Language Description: The System SOCCER Epistemology Chairperson: M. Boden Room A, Wednesday, August 3, 16:00-17:15 C. Thornton 16:00 Links Between Content and Information-Content L.E. Janlert 16:30 Pictorial Knowledge Representation S. Hagglund, I. Rankin 16:45 Investigating the Usability of Expert Critiquing in Knowledge-based Consultation Systems A. Clark 17:00 Two Kinds of Cognitive Sciences ? Industrial Applications 1 Chairperson: G. Guiho Room B, Wednesday, August 3, 11:00-12:30 P. Prosser 11:00 A Hybrid Genetic Algorithm for Pallet Loading T.J. Grant 11:30 An Algorithm for Obtaining Action Sequences from a Procedures Knowledge Base E. Tulp 12:00 TRAINS, An Active Time-table Searcher Industrial Applications 2 Chairperson: B. Lepape Room D, Wednesday, August 3, 16:30-17:30 A. Carpentier, B. Solet, M.P. Branca, P.G. Kubansky 16:30 Escut: An Expert System for Configuring Digital Telephone Switching Equipments M.-J. Schachter-Radig, D. Wermser 17:00 A Sales Assistent for Chemical Measurement Equipment - SEARCHEM A. Huber, S. Becker 17:15 Production Planning using a Temporal Planning Component Knowledge Representation 1 Chairperson: R. Lopez de Mantaras Room D, Wednesday, August 3, 9:00-10:30 B. Bredeweg, B.J. Wielinga 9:00 Integrating Qualitative Reasoning Approaches W. Van de Velde 9:30 Inference Structure as a Basis for Problem Solving M. Frixione, S. Gaglio, G. Spinelli 10:00 Proper Names and Individual Concepts in SI-Nets Knowledge Representation 2 Chairperson: E. Tyugu Room A, Wednesday, August 3, 11:00-12:30 W. Wobcke 11:00 A Global Theory of Inheritance M. Ayel 11:30 Protocols for Consistency Checking in Expert System Knowledge Bases E. Chouraqui, P. Dugerdil 12:00 Conflicts Solving in a Frame-like Multiple Inheritance System Knowledge Representation 3 Chairperson: J.P. Laurent Room A, Thursday, August 4, 10:30-12:15 B. Elfrink, H. Reichgelt 10:30 The Use of Assertion-time Inference in Logic-based Knowledge Bases J. Ferber, P. Volle 11:00 Using Conference in Object-oriented Representations K. Eberle 11:15 Extensions of Event-Structures M. Poesio 11:45 Toward a Hybrid Representation of Time Knowledge Representation 4 Chairperson: L. Steels Room C, Friday, August 5, 10:30-12:00 A. Farquhar 10:30 A Qualitative Reasoning Approach to Fault Avoidance J. Cuena 10:45 The Qualitative Modelling of Axis-based Flow Systems: Methodology and Examples C. Popp 11:00 Answering WHY? HOW? And WHY-NOT? Questions in a Blackboard System M. Porcheron 11:15 MILORE: a Meta-Level Knowledge Based Architecture for Production System Execution M. Sharples, B. Du Boulay 11:45 Knowledge Representation for a Concept Tutoring System Logic Programming 1 Chairperson: A. Martelli Room B, Wednesday, August 3, 9:00-10:30 M. Ducass 9:00 Opium: a Meta-debugger for Prolog J. Chassin, J.-C. Syre, H. Westphal 9:30 Implementation of a Parallel Prolog System on a Commercial Multiprocessor M. Cavalieri, F. Lamma, P. Mello 10:00 An Extended Prolog Machine for Dynamic Context Handling Logic Programming 2 Chairperson: J. Rohmer Room B, Wednesday, August 3, 16:00-17:30 M. Dincbas, H. Simonis, P. Van Hentenryck 16:00 Solving the Car-Sequencing Problem in Constraint Logic Programming T. Hrycej 16:30 Temporal Prolog P. Saint-Dizier 17:00 Foundations of DISLOG, Programming in Logic with Discontinuities T. Conrad 17:15 A Many Sorted PROLOG based on Equational Unification Logic Programming 3 Chairperson: M. Dincbas Room D, Thursday, August 4, 14:00-15:30 S. Owen, R. Hull 14:00 The Use of Explicit Interpretation to Control Reasoning about Protein Topology C.-K. Looi 14:30 Analysing Novices Programs in a Prolog Intelligent Teaching System J. Zhang, P.W. Grant 15:00 An Automatic Difference-List Transformation Algorithm for Prolog Machine Learning 1 Chairperson: D. Sleeman Room C, Wednesday, August 3, 14:00-15:30 M. Keane 14:00 Where's the Beef? The Absence of Pragmatic Factors in Pragmatic Theories of Analogy R. E. Stepp, B.L. Whitehall, L.B. Holder 14:30 Towards Intelligent Machine Learning Algorithms J. L. de Siqueira, J.-F. Puger 15:00 Explanation-based Generalisation of Failures Machine Learning 2 Chairperson: C. Rollinger Room C, Wednesday, August 3, 16:00-17:30 J. Diederich 16:00 Connectionist Recruitment Learning R. Goodman, P. Smyth 16:30 Information-Theoretic Rule Induction B. Cestnik, I. Bratko 17:00 Learning Redundant Rules in Noisy Domains J. Herrmann 17:15 A Machine Learning Approach to Estimation for IC Design Machine Learning 3 Chairperson: Y. Kodratoff Room B, Thursday, August 4, 14:00 - 15:15 F. Bergadano, A. Giordana, L. Saitta 14:00 Concept Acquisition in an Integrated EBL and SBL Environment M. Valtorta 14:30 Automating Rule Strengths in Expert Systems P. P. Terpstra, M.W. van Someren 14:45 INDE: A System for Heuristic Knowledge Refinement Y. Takada 15:00 Grammatical Inference for Even Linear Languages Based on Control Sets Machine Learning 4 Chairperson: K. Morik Room B, Thursday, August 4, 16:00 - 17:30 J. Blythe 16:00 Constraining Search in a Hierarchical Discriminative Learning System J. G. Ganascia 16:30 Improvement and Refinement of the Learning Bias Semantic O. Gascuel, A. Danchin 17:00 Data Analysis using a Learning Program, a Case Study: An Application of PLAGE to a Biological Sequence Analysis Machine Learning 5 Chairperson: T. Niblett Room D, Friday, August 5, 10:30 - 12:00 G.D. Oosthuizen, D.R. McGregor 10:30 Induction Through Knowledge Base Normalisation J. Nicolas 11:00 Consistency and Preference Criterion for Generalization Languages Handling Negation and Disjunction W. Van de Velde 11:30 Quality of Learning Multi-Agent Interaction 1 Chairperson: G. Kiss Room A, Thursday, August 6, 14:00 - 15:15 J. R. Galliers 14:00 A Strategic Framework for Multi-Agent Cooperative Dialogue J. Ayel 14:30 A Conceptual Supervision Model in Computer Integrated Manufacturing D. Connah , M. Shiels, P. Wavish 15:00 A Testbed for Research on Cooperating Agents Multi-Agent Interaction 2 Chairperson: H. Coelho Room C, Thursday, August 6, 16:00 - 17:15 N.R. Seel 16:00 Modelling Iterated Strategies: A Case Study S. Adey 16:30 High Level Control of Simulated Ships and Aircraft C.A. Fields, M.J. Coombs, E.S. Dietrich, R.T. Hartley 16:45 Incorporating Dynamic Control into the Model Generative Reasoning System Natural Language Understanding 1 Chairperson: W. Wahlster Room A, Wednesday, August 3, 9:00 - 10:30 E. Andre, G. Herzog, T. Rist 9:00 On the Simultaneous Interpretation of Real World Image Sequences and their Natural Language Description: the System SOCCER G. Retz-Schmidt 9:30 A REPLAY of SOCCER: Recognizing Intensions in the Domain of Soccer Games M. Otani, J.M. Lancel 9:45 Sentence Generation: From Semantic Representation to Sentences throughout Linguistic Definitions and Lexicon-Grammer A.J.H. Simons 10:15 A Qualitative Model of the Articulators Natural Language Understanding 2 Chairperson: U. Zernik Room D, Thursday, August 4, 16:00 - 17:30 T. Nakazawa, L. Neher, E.W. Hinrichs 16:00 Unification with Disjunctive and Negative Values for GPSG Grammars B. Dunin-Keplicz 16:30 Partial Reconstruction of Coreferential Structure of Discours L. Lesmo, M. Berti, P. Terenziani 17:00 A Network Formalisation for Representing Natural Language Quantifiers Non-Standard Approaches 1 Chairperson: P. Smets Room D, Wednesday, August 3, 11:00- 12:15 P. Jackson, H. Reichgelt 11:00 A Modal Proof Method for Doxastic Reasoning in Incomplete Theories M.-O. Cordier 11:30 SHERLOCK: Hypothetical Reasoning in an Expert System Shell N. Bidoit, C. Froidevaux 12:00 More on Stratified Default Theories Non-Standard Approaches 2 Chairperson: J. Campbell Room B, Wednesday, August 3, 14:00 - 15:30 P. Smets 14:00 Transferable Belief Model Versus Bayesian Model D. Dubois, H. Prade, C. Testemale 14:30 In Search of a Modal System for Possibility Theory A. L. Brown 15:00 Logics of Justified Belief Non-Standard Approaches 3 Chairperson: R. Turner Room B, Thursday, August 4, 10:30 - 12:15 Y. Moinard 10:30 Computing Circumscription Of Horn Theories P. Besnard, J. Houdebine, R. Rolland 10:45 A Formula Circumscriptively both Valid and Unprovable P.J. de la Quintana 11:00 Computing Quantifiers in Predicate Modal Logics M.R.B. Clarke 11:30 Intuitionistic Non-Monotonic Reasoning - Further Results A. D'Angelo, C. Mirolo, E. Pagello 11:45 A Multiagent Planner for Reasoning with Incomplete Knowledge in a Distributed Environment Reasoning and Theorem Proving 1 Chairperson: L. Aiello Room C, Wednesday, August 3, 9:00 - 10:30 O. Dressler 9:00 Extending the Basic ATMS E. Lafon, C.B. Schwind 9:30 A Theorem Prover for Action Performance G. M. Provan 10:00 Solving Diagnostic Problems Using Extended Truth Maintenance Systems Reasoning and Theorem Proving 2 Chairperson: W. Walther Room C, Wednesday, August 3, 11:00 - 12:30 S. Biundo 11:00 Automated Synthesis of Recursive Algorithms as a Theorem Proving Tool M. Franova 11:30 An Implementation of Program Synthesis from Formal Specifications: PRECOMAS A. Stevens 12:00 A Rational Reconstruction of Boyer and Moore'S Technique for Constructing Induction Formulars Reasoning and Theorem Proving 3 Chairperson: L. Wallen Room E, Wednesday, August 3, 14:00 - 15:30 E.P.K. Tsang 14:00 Element in Temporal Reasoning in Planning W. Lukaszewicz 14:15 Chronological Minimization of Abnormality: Simple Theories of Action M. Lenzerini, D. Nardi 14:30 Belief Revision as Meta-Reasoning T. Hrycej 14:45 Intelligent Backtracking with StructuredContexts H. Tuominen 15:15 Translations from Epistemic into Dynamic Logic Reasoning and Theorem Proving 4 Chairperson: C. Hogger Room E, Wednesday, August 3, 16:00 - 17:30 B. Liu 16:00 A Reinforcement Approach to Scheduling I. Niemela 16:30 Autoepistemic Predicate Logic H. Freitag, M. Reinfrank 17:00 A Non-Monotonic Deduction System Based on (A)TMS Reasoning and Theorem Proving 5 Chairperson: E. Omedeo Room D, Thursday, August 4, 10:30 - 12:30 F. Giunchiglia, E. Giunchiglia 10:30 Building Complex Derived Inference Rules: A Decider for the Class of Prenex Universal-Existential Formulas J. Paredis 10:45 Qualified Logic as a Means of Integrating Conceptual Formalisms K. Ammon 11:00 Discovering a Proof for the Fixed Point Theorem: A Case Study J. Treur 11:30 Completeness and Definability in Diagnostic Expert Systems G. Charminade 12:00 Some Computational Aspects of an Order-Sorted Calculus: Order-Sorted Unification Using Compact Representation of Clauses Robotics Chairperson: M. Brady Room C, Thursday, August 4, 14:00 - 15:30 S. Bocionek 14:00 Computer-Aided Configuration of Gantry Robots P. Levi 14:30 TOPAS: A Task Oriented Planner for Optimized Assembly Sequences G. Adorni, A. Camurri, A. Poggi, R. Zaccaria 15:00 Integrating Spatio Temporal Knowledge: A Hybrid Approach Vision 1 Chairperson: B. Radig Room D, Wednesday, August 3, 14:00 - 15:45 R. Mohr, G. Masini 14:00 Good Old Discrete Relaxation C. Sielaff 14:30 Hierarchies Over Relational Structures K. Ammon, S. Stier 15:00 Constructing Polygon Concepts from Line Drawings G. Vivo, P. Cosoli, R. Salonna 15:15 An Environment for Expert Image Processing A. Saroldi 15:30 Successive Grouping: Adding Knowledge to Improve Segmentation Vision 2 Chairperson: R. Mohr Room C, Thursday, August 4, 10:30 - 12:00 W. Menhardt 10:30 Image Analysis Using Iconic Fuzzy Sets V. Johnston, P. Lopez, D. Partridge 10:45 A Biologically Based Algorithm for Rapid Scene Analysis E. Thirion, R. Mohr 11:00 Matching 3-D Images Without Backtracking Through Feature Grouping E. Grosso, G. Sandini, C. Frigato 11:30 Extraction Of 3D Information and Volumetric Uncertainty from Multiple Stereo Images _____________________________________ Tutorials The 8th Ecai is preceded by tutorials, organized by the GI-DIA. More information are available at Gi-DIA. Tutorial 1: Expert Systems Monday, August 1, Room T1 Jean-Gabriel Ganascia, Jim Hunter Tutorial 2: Logic Programming Monday, August 1, Room T2 Ulrich Furbach, Klaus Estenfeld, Franz Kurfess 1. Methods of Logic Programming Besides the usual SLD-resolution approach to logic programming with Horn clauses, we will describe various other methods; e.g. programming using full first oder predicate logic and equational logic. Furthermore it will be demonstrated that narrowing, a commonly used inference method for equational logic programming, can be related very closely to the paramodulation rule used in theorem proving. 2. Implementation With PROLOG as the main representative of the logic programming paradigm, we will discuss the implementation of an interpreter realizing the PROLOG computation rule. Starting from this classic technique, we will present mechanisms for the efficient compilation of PROLOG. 3. Parallel Logic Programming The execution speed of logic programs on conventional machines has improved a lot in the last few years, partly due to the topics mentioned in the previous part, but also to more powerful computer systems. Nevertheless there is still an urgent need for more efficiency in logic programming. Here, the exploitation of parallelism promises considerable increases. Parallelism can be introduced on various levels; first, on the implementation level by executing independent parts of the program in parallel; second, on the language level by a set of constructs to control the parallel execution of logic programs, and third, by meta-level features like various evaluation strategies. The last of this tutorial gives a brief overview of methodologies under investigation for the exploitation of parallelism in logic programming. Ulrich Furbach received his master degree from Technische Universitaet Muenchen in 1976 and his Ph.D. in theoretical Computer Science from the Universitaet der Bundeswehr Muenchen in 1983. As an assistent in the Computer Science Department of Universitaet der Bundeswehr, he worked on semantics of programming languages, logic and fuctional programming and on knowledge representation. In 1987 he joined the Artificial Intelligence Group at the Technische Universitaet Muenchen, where he is involved in the Esprit-Project 973 (Advanced Logic Programming Environments). He is now the leader of the AI-Group. Klaus Estenfeld 1972-1976 Study of Computer Science and Mathematics at the University of Saarbruecken 1976-1981 Assistent in the Theoretical Computer Science Dept. at the University of Saarbruecken 1/80 Ph.D. with a work in Formal Language Theory 10/81-12/83 Researcher leader in the Logic Programming group of ECRC (European Computer-Industry Research Centre), responsible for ECRC-Prolog 1/84-9/86 Project leader for AI-tools in the Siemens data division (a.o. developments of a Prolog-DB connection) 11/87- Group leader in Siemens Corporate Applied Computer Sciences with special interests in Prolog implementation and in extending Prolog for special applications (e.g. CAD electronic) Franz Kurfess is a member of the Artificial Intelligence Group at the Technical University of Munich. The focus of his current work is concentrated on the design of a parallel inference machine based on W. Bibel's connection method, and is carried out within the framework of the ESPRIT-Project 415 on Advanced Information Processing. He received his diploma in computer science from the Technical University of Munich in 1984. His research interests inlcude exploration in parallel and distributed systems in general, trying to make us of the knowledge gathered here for the design of parallel computer architectures. Tutorial 3: Machine Learning Monday, August 1, Room T3 Yves Kodratoff, Katharina Morik Tutorial 4: Modal Logics Monday, August 1, Room T4 Allan Ramsay, Raymond Turner Tutorial 5: Natural Language Processing Monday, August 1, Room T5 Uri Zernik, Koenraad De Smedt Tutorial 6: Deductive Data Bases Tuesday, August 2, Room T6 Herve Gallaire, Jean-Marie Nicolas Tutorial 7: Intelligent Tutoring Systems Tuesday, August 2, Room T7 Benedict du Boulay, Peter Ross Tutorial 8: Theorem Proving Tuesday, August 2, Room T8 Jieh Hsiang, Jean-Pierre Jouannaud