Invited Papers -- Rule Interchange Format: The Framework -- Semantics and Reasoning Algorithms for a Faithful Integration of Description Logics and Rules -- Full Papers -- On Combining Description Logic Ontologies and Nonrecursive Datalog Rules -- Simulation Subsumption or Déjà vu on the Web -- Reasoning with a Network of Aligned Ontologies -- Lexicographical Inference over Inconsistent DL-Based Ontologies -- A Survey of Revision Approaches in Description Logics -- Towards Rule-Based Minimization of RDF Graphs under Constraints -- Ontology Design and Reuse with Conceptual Roles -- Enhancing a DLP System for Advanced Database Applications -- A Semantic Web Reasoner for Rules, Equations and Constraints -- What Is Approximate Reasoning? -- Approximate OWL-Reasoning with Screech -- Ranking Services Using Fuzzy HEX Programs -- Short Papers -- Markup and Component Interoperability for Active Rules -- On Reducing Redundancy in Mining Relational Association Rules from the Semantic Web -- A TRIPLE-Oriented Approach for Integrating Higher-Order Rules and External Contexts -- Paraconsistent Reasoning with Quasi-classical Semantic in -- Posters -- Fluent Calculus Based Web Service Composition -- Vague-SWRL: A Fuzzy Extension of SWRL -- Alternative Strategies for Contextual Reasoning with Conflicts in Ambient Computing -- Taming Existence in RDF Querying -- A Tableau Algorithm for Possibilistic Description Logic .