Keynote session.- Service-Oriented Computing: Multiagent Foundation, Robust Applications, and Research Agenda.- Technical session: Applications I.- A Semantic Web Mediation Architecture.- Applying and Inferring Fuzzy Trust in Semantic Web Social Networks.- A Trust Model for Sharing Ratings of Information Providers on the Semantic Web.- Technical session: Applications II.- A Distributed Agent System upon Semantic Web Technologies to Provide Biological Data.- Fulfilling the Needs of a Metadata Creator and Analyst- An Investigation of RDF Browsing and Visualization Tools.- A Rule-based Approach for Semantic Annotation Evolution in the CoSWEM System.- Technical session: Ontologies I.- Integrating Ontologies by means of Semantic Partitioning.- Toward the Identification and Elimination of Semantic Conflicts for the Integration of RuleML-based Ontologies.- Incorporating Multiple Ontologies into the IEEE Learning Object Metadata Standard.- Ontoligent Interactive Query Tool.- Technical session: Ontologies II.- DatalogDL: Datalog Rules Parameterized by Description Logics.- Resolution Based Explanations for Reasoning in the Description Logic ALC.- Completion Rules for Uncertainty Reasoning with the Description Logic ALC.