Logics in Artificial Intelligence -

. .

Résumé :
TheEuropeanConferenceonLogicsinAIprovidesamajorbiennialforumforthe discussion of logic-oriented approaches to arti?cial intelligence. Following pre- ous workshops held in France (1988), The Netherlands (1990), Germany (1992), England (1994), Portugal (1996), Germany (1998), and Spain (2000) the eighth conference was in Cosenza, Italy, September 23?26, 2002. The international level and the overall technical quality of this event is now well established. As a c- sequence, the Program Committee wished to explicitly mark JELIA 2002 as a milestone by promoting the event from a ?Workshop? to a ?Conference?. Theaimwastobringtogetheractiveresearchersinterestedinallaspectsc- cerning the use of logics in arti?cial intelligence to discuss current research, - sults,problems,andapplicationsofboththeoreticalandpracticalnature. JELIA strived to foster links and facilitate cross-fertilization of ideas among researchers from various disciplines, among researchers from academia, industry, and g- ernment, and between theoreticians and practitioners. ThetechnicalprogramofJELIA2002comprisedthreeinvitedtalksthatwere given by Georg Gottlob, Michael Gelfond, and Moshe Y. Vardi and 41 refereed contributions selected by the Program Committee amongst more than 100 s- mittedpapers. Asapartofthetechnicalprogram,theconferencefeaturedas- cial session consisting of 11 system presentations. Finally, the program included three tutorials by V. S. Subrahamanian, Dino Pedreschi and Fosca Giannotti, and Gerald Pfeifer.

Sommaire:
Multi-agent Systems.- A Logic Programming Language for Multi-agent Systems.- A Proof-System for the Safe Execution of Tasks in Multi-agent Systems.- An Argumentation Framework for Merging Conflicting Knowledge Bases.- Multi-agent Logics of Dynamic Belief and Knowledge.- Evolution and Changes.- Evolving Logic Programs.- A Compilation of Updates plus Preferences.- Description Logic and Semantic Web.- Towards Service Description Logics.- P- (D): A Probabilistic Extension of (D) for Probabilistic Ontologies in the Semantic Web.- A Temporal Description Logic for Reasoning over Conceptual Schemas and Queries.- Complexity Issues.- Polynomial-Length Planning Spans the Polynomial Hierarchy.- Complexity of Multi-agent Systems Behavior.- Complexity and Algorithms for the Matching of Bag and Set Terms.- Probabilistic Logic.- Non-commutativity and Expressive Deductive Logic Databases.- Using Institutions for the Study of Qualitative and Quantitative Conditional Logics.- Planning.- Theoretical and Empirical Aspects of a Planner in a Multi-agent Environment.- Answer Set Planning under Action Costs.- Modal Logic and Causal Reasoning.- On Fibring Semantics for BDI Logics.- A Modal Formulation of McCain and Turner's Theory of Causal Reasoning.- Second-Order Quantifier Elimination in Modal Contexts.- Theory.- Interpolation Theorems for Nonmonotonic Reasoning Systems.- Minimal Answer Computation and SOL.- Decidability of Interval Temporal Logics over Split-Frames via Granularity.- Reasoning under Uncertainty.- Uncertainty and Partial Non-uniform Assumptions in Parametric Deductive Databases.- A Qualitative Reasoning with Nuanced Information.- Satisfiability.- Dependent and Independent Variables in Propositional Satisfiability.- A DPLL-Based Calculus for Ground SatisfiabilityModulo Theories.- Paraconsistent Reasoning.- Paraconsistent Reasoning via Quantified Boolean Formulas, I: Axiomatising Signed Systems.- Three-Valued Logics for Inconsistency Handling.- Paraconsistent Logic Programs.- Actions and Causation.- Interpolation Properties of Action Logic: Lazy-Formalization to the Frame Problem.- Reasoning about Actions in Prioritized Default Theory.- Towards a Conditional Logic of Actions and Causation.- Logics for Agents.- Axiomatising Nash-Consistent Coalition Logic.- Representing Possibilities in Relation to Constraints and Agents.- An Abductive Logic Programming Architecture for Negotiating Agents.- Semantics.- Preferred Answer Sets for Ordered Logic Programs.- Implementing Ordered Disjunction Using Answer Set Solvers for Normal Programs.- An Infinite-Valued Semantics for Logic Programs with Negation.- Optimization Issues in Answer Set Semantics.- More on noMoRe.- Answer Set Programming by Ant Colony Optimization.- Testing the Equivalence of Logic Programs under Stable Model Semantics.- System Session.- Argumentative Reasoning with ABEL.- COBA: A Consistency-Based Belief Revision System.- Constraint Lingo: A Program for Solving Logic Puzzles and Other Tabular Constraint Problems.- : Integrating Data Mining with Intelligent Query Answering.- NoMoRe: Non-monotonic Reasoning with Logic Programs.- Process Miner - A Tool for Mining Process Schemes from Event-Based Data.- SMILES: A Multi-purpose Learning System.- The aspps System.- The DLV System.- The DLVK Planning System: Progress Report.- Z-log: Applying System-Z.- Invited Talks.- Hypergraph Transversal Computation and Related Problems in Logic and AI.- Alternation.- The USA-Advisor: A Case Study in Answer Set Programming....