Web Reasoning and Rule Systems: Third International Conference, RR 2009, Chantilly, VA, USA, October 25-26, 2009, Proceedings (Lecture Notes in Computer Science (5837))

This book constitutes the refereed proceedings of the Third International Conference on Web Reasoning and Rule Systems, RR 2009, held in Chantilly, VA, USA, in October 2009. The 15 revised full papers presented together with 3 invited papers were carefully reviewed and selected from 41 submissions. The papers address all current topics in Web reasoning and rule systems such as proof/deduction procedures, scalability, uncertainty, knowledge amalgamation and querying, and rules for decision support and production systems. ThepromiseoftheSemanticWeb,atits most expansive, is to allow knowledge to be freely accessed and exchanged by software. It is now recognized that if the SemanticWebis to containdeepknowledge,theneedfornewrepresentationand reasoning techniques is going to be critical. These techniques need to ?nd the righttrade-o?betweenexpressiveness,scalabilityandrobustnesstodealwiththe inherently incomplete, contradictory and uncertain nature of knowledge on the Web. The International Conference on Web Reasoning and Rule Systems (RR) was founded to address these needs and has grown into a major international forum in this area. The third RR conference was held during October 25–26, 2009 in Chantilly, Virginia, co-located with the International Semantic Web Conference (ISWC 2009). This year 41 papers were submitted from authors in 21 countries. The P- gram Committee performed outstandingly to ensure that each paper submitted to RR 2009 was thoroughly reviewed by at least three referees in a short - riod of time. The resulting conference presented papers of high quality on many of the key issues for reasoning on the Semantic Web. RR 2009 was fortunate to have two distinguished invited speakers. Robert Kowalski, in his talk “- tegrating Logic Programming and Production Systems with Abductive Logic Programming Agents” addressed some of the fundamental considerations - hind reasoning about evolving systems. Benjamin Grossof’s talk “SILK: Higher Level Rules with Defaults and Semantic Scalability” described the design of a major next-generation rule system. The invited tutorial “Uncertainty Reas- ing for the Semantic Web” by Thomas Lukasiewicz provided perspectives on a central issue in this area. Front Matter....Pages - Integrating Logic Programming and Production Systems in Abductive Logic Programming Agents....Pages 1-23 SILK: Higher Level Rules with Defaults and Semantic Scalability....Pages 24-25 Uncertainty Reasoning for the Semantic Web....Pages 26-39 A Preferential Tableaux Calculus for Circumscriptive ${\mathcal ALCO}$ ....Pages 40-54 A Reasoner for Simple Conceptual Logic Programs....Pages 55-70 Search for More Declarativity....Pages 71-86 Distributed Resolution for Expressive Ontology Networks....Pages 87-101 Scalable Web Reasoning Using Logic Programming Techniques....Pages 102-117 On the Ostensibly Silent ‘W’ in OWL 2 RL....Pages 118-134 Answer Sets in a Fuzzy Equilibrium Logic....Pages 135-149 Belief Logic Programming with Cyclic Dependencies....Pages 150-165 A Minimal Deductive System for General Fuzzy RDF....Pages 166-181 An Efficient Method for Computing Alignment Diagnoses....Pages 182-196 Paraconsistent Reasoning for OWL 2....Pages 197-211 A Formal Theory for Modular ERDF Ontologies....Pages 212-226 The Perfect Match: RPL and RDF Rule Languages....Pages 227-241 A Hybrid Architecture for a Preoperative Decision Support System Using a Rule Engine and a Reasoner on a Clinical Ontology....Pages 242-253 A Logic Based Approach to the Static Analysis of Production Systems....Pages 254-268 Back Matter....Pages -