th The 15 International Conference on Knowledge Engineering and Knowledge Management (2006), held on October 6-10, 2006 in Pod? The importance given to the interconnection of - man users in a sense loops back to the knowledge acquisition roots of EKAW and its ‘holistic’ view of knowledge engineering.

Invited Talks.- Information and Influence in Social Networks.- Learning, Logic, and Probability: A Unified View.- Knowledge Acquisition.- KARaCAs: Knowledge Acquisition with Repertory Grids and Formal Concept Analysis for Dialog System Construction.- Capturing Quantified Constraints in FOL, Through Interaction with a Relationship Graph.- Assisting Domain Experts to Formulate and Solve Constraint Satisfaction Problems.- Knowledge Acquisition Evaluation Using Simulated Experts.- Stochastic Foundations for the Case-Driven Acquisition of Classification Rules.- From Natural Language to Formal Proof Goal.- Reuse: Revisiting Sisyphus-VT.- Ontology Engineering.- Role Organization Model in Hozo.- Verification and Refactoring of Ontologies with Rules.- Ontology Selection for the Real Semantic Web: How to Cover the Queen’s Birthday Dinner?.- Ontology Engineering, Scientific Method and the Research Agenda.- Ontology Learning.- Ontology Enrichment Through Automatic Semantic Annotation of On-Line Glossaries.- Discovering Semantic Sibling Groups from Web Documents with XTREEM-SG.- Designing and Evaluating Patterns for Ontology Enrichment from Texts.- Ontology Mapping and Evolution.- Semantic Metrics.- Matching Unstructured Vocabularies Using a Background Ontology.- Distributed Multi-contextual Ontology Evolution – A Step Towards Semantic Autonomy.- An Evaluation Method for Ontology Complexity Analysis in Ontology Evolution.- Semantic Search.- Semantic Search Components: A Blueprint for Effective Query Language Interfaces.- SemSearch: A Search Engine for the Semantic Web.- Rich Personal Semantic Web Clients: Scenario and a Prototype.- User Interfaces.- i dee: An Integrated and Interactive Data Exploration Environment Used for Ontology Design.- Evaluating a Thesaurus Browserfor an Audio-visual Archive.- Knowledge Discovery.- Frequent Pattern Discovery from OWL DLP Knowledge Bases.- Engineering and Learning of Adaptation Knowledge in Case-Based Reasoning.- A Methodological View on Knowledge-Intensive Subgroup Discovery.- Iterative Bayesian Network Implementation by Using Annotated Association Rules.- Semantics from Networks and Crowds.- Multilayered Semantic Social Network Modeling by Ontology-Based User Profiles Clustering: Application to Collaborative Filtering.- Towards Knowledge Management Based on Harnessing Collective Intelligence on the Web.- A Formal Approach to Qualitative Reasoning on Topological Properties of Networks.- Applications.- Towards a Knowledge Ecosystem.- A Tool for Management and Reuse of Software Design Knowledge.- The ODESeW Platform as a Tool for Managing EU Projects: The Knowledge Web Case Study.