Invited Talks -- Knowledge Patterns -- Computational Semantics and Knowledge Engineering -- Principles for Knowledge Engineering on the Web -- Knowledge Patterns and Knowledge Representation -- Applying Ontology Design Patterns in Bio-ontologies -- A Pattern and Rule-Based Approach for Reusing Adaptive Hypermedia Creator’s Models -- Natural Language-Based Approach for Helping in the Reuse of Ontology Design Patterns -- On the Influence of Description Logics Ontologies on Conceptual Similarity -- Polishing Diamonds in OWL 2 -- Formalizing Ontology Modularization through the Notion of Interfaces -- Correspondence Patterns for Ontology Alignment -- Matching Ontologies and Data Integration -- Learning Disjointness for Debugging Mappings between Lightweight Ontologies -- Towards a Rule-Based Matcher Selection -- An Analysis of the Origin of Ontology Mismatches on the Semantic Web -- Preference-Based Uncertain Data Integration -- Natural Language, Knowledge Acquisition and Annotations -- Unsupervised Discovery of Compound Entities for Relationship Extraction -- Formal Concept Analysis: A Unified Framework for Building and Refining Ontologies -- Contextualized Knowledge Acquisition in a Personal Semantic Wiki -- Using the Intension of Classes and Properties Definition in Ontologies for Word Sense Disambiguation -- Mapping General-Specific Noun Relationships to WordNet Hypernym/Hyponym Relations -- Analysing Ontological Structures through Name Pattern Tracking -- Semi-automatic Construction of an Ontology and of Semantic Annotations from a Discussion Forum of a Community of Practice -- OMEGA: An Automatic Ontology Metadata Generation Algorithm -- Automatic Tag Suggestion Based on Resource Contents -- Integration of Semantically Annotated Data by the KnoFuss Architecture -- Search, Query and Interaction -- A Visual Approach to Semantic Query Design Using a Web-Based Graphical Query Designer -- Search Query Generation with MCRDR Document Classification Knowledge -- Ontological Profiles in Enterprise Search -- Ontologies -- A Generic Ontology for Collaborative Ontology-Development Workflows -- GoodRelations: An Ontology for Describing Products and Services Offers on the Web -- An Ontology-Centric Approach to Sensor-Mission Assignment -- Ontology Based Legislative Drafting: Design and Implementation of a Multilingual Knowledge Resource -- Situated Cognition in the Semantic Web Era -- E-Business Vocabularies as a Moving Target: Quantifying the Conceptual Dynamics in Domains -- A Platform for Object-Action Semantic Web Interaction.