The Semantic Web [electronic resource] : 6th International Semantic Web Conference, 2nd Asian Semantic Web Conference, ISWC 2007 + ASWC 2007, Busan, Korea, November 11-15, 2007. Proceedings / edited by Karl Aberer, Key-Sun Choi, Natasha Noy, Dean Allemang, Kyung-Il Lee, Lyndon Nixon, Jennifer Golbeck, Peter Mika, Diana Maynard, Riichiro Mizoguchi, Guus Schreiber, Philippe Cudré-Mauroux.

Research Track -- Enabling Advanced and Context-Dependent Access Control in RDF Stores -- Automatically Composing Data Workflows with Relational Descriptions and Shim Services -- COMM: Designing a Well-Founded Multimedia Ontology for the Web -- How Service Choreography Statistics Reduce the Ontology Mapping Problem -- Kernel Methods for Mining Instance Data in Ontologies -- An Ontology Design Pattern for Representing Relevance in OWL -- Logical Foundations of (e)RDF(S): Complexity and Reasoning -- Scalable Cleanup of Information Extraction Data Using Ontologies -- A Cognitive Support Framework for Ontology Mapping -- Making More Wikipedians: Facilitating Semantics Reuse for Wikipedia Authoring -- CLOnE: Controlled Language for Ontology Editing -- Creating a Dead Poets Society: Extracting a Social Network of Historical Persons from the Web -- OBO and OWL: Leveraging Semantic Web Technologies for the Life Sciences -- History Matters: Incremental Ontology Reasoning Using Modules -- SALT: Weaving the Claim Web -- YARS2: A Federated Repository for Querying Graph Structured Data from the Web -- Discovering Simple Mappings Between Relational Database Schemas and Ontologies -- Potluck: Data Mash-Up Tool for Casual Users -- An Empirical Study of Instance-Based Ontology Matching -- Finding All Justifications of OWL DL Entailments -- How Useful Are Natural Language Interfaces to the Semantic Web for Casual End-Users? -- The Fundamentals of iSPARQL: A Virtual Triple Approach for Similarity-Based Semantic Web Tasks -- Conjunctive Queries for a Tractable Fragment of OWL 1.1 -- Continuous RDF Query Processing over DHTs -- Bringing Semantic Annotations to Web Services: OWL-S from the SAWSDL Perspective -- Ontology-Based Controlled Natural Language Editor Using CFG with Lexical Dependency -- Web Search Personalization Via Social Bookmarking and Tagging -- Measuring Incoherence in Description Logic-Based Ontologies -- Alternating-Offers Protocol for Multi-issue Bilateral Negotiation in Semantic-Enabled Marketplaces -- An Event-Based Approach for Semantic Metadata Interoperability -- Evaluating the Semantic Web: A Task-Based Approach -- Using Tableau to Decide Expressive Description Logics with Role Negation -- Instance Migration in Heterogeneous Ontology Environments -- AllRight: Automatic Ontology Instantiation from Tabular Web Documents -- A Caching Mechanism for Semantic Web Service Discovery -- A Method for Recommending Ontology Alignment Strategies -- Lifecycle-Support in Architectures for Ontology-Based Information Systems -- Ontology-Based Interpretation of Keywords for Semantic Search -- RDFSync: Efficient Remote Synchronization of RDF Models -- Sindice.com: Weaving the Open Linked Data -- combiSQORE: An Ontology Combination Algorithm -- PORE: Positive-Only Relation Extraction from Wikipedia Text -- Ontology Performance Profiling and Model Examination: First Steps -- The Semantic Web and Human Inference: A Lesson from Cognitive Science -- From Web Directories to Ontologies: Natural Language Processing Challenges -- On the Foundations of Computing Deltas Between RDF Models -- Semplore: An IR Approach to Scalable Hybrid Query of Semantic Web Data -- Semantic Cooperation and Knowledge Reuse by Using Autonomous Ontologies -- An Unsupervised Model for Exploring Hierarchical Semantics from Social Annotations -- SPARK: Adapting Keyword Query to Semantic Search -- Semantic Web In-Use Track -- Unlocking the Potential of Public Sector Information with Semantic Web Technology -- DBpedia: A Nucleus for a Web of Open Data -- A Semantic Case-Based Reasoning Framework for Text Categorization -- Purpose-Aware Reasoning about Interoperability of Heterogeneous Training Systems -- A Collaborative Semantic Web Layer to Enhance Legacy Systems -- HealthFinland —Finnish Health Information on the Semantic Web -- Spatially-Augmented Knowledgebase -- Recipes for Semantic Web Dog Food — The ESWC and ISWC Metadata Projects -- Matching Patient Records to Clinical Trials Using Ontologies -- Application of Ontology Translation -- Ontology-Based Information Extraction for Business Intelligence -- EIAW: Towards a Business-Friendly Data Warehouse Using Semantic Web Technologies -- Semantic Web Challenge -- GroupMe! - Where Semantic Web Meets Web 2.0 -- CHIP Demonstrator: Semantics-Driven Recommendations and Museum Tour Generation -- Semantics-Based Framework for Personalized Access to TV Content: The iFanzy Use Case -- Revyu.com: A Reviewing and Rating Site for the Web of Data -- Potluck: Semi-ontology Alignment for Casual Users -- Doctoral Consortium -- Semi-automatic Ontology Engineering Using Patterns -- From Texts to Structured Documents: The Case of Health Practice Guidelines -- Knowledge Enhanced Searching on the Web -- Ontology-Driven Management of Semantic Spaces -- Ontology Mapping: An Information Retrieval and Interactive Activation Network Based Approach -- Probabilistic Information Integration and Retrieval in the Semantic Web -- OWL-DL as a Power Tool to Model Negotiation Mechanisms with Incomplete Information -- Cultural Adaptivity for the Semantic Web -- Lightweight Community-Driven Ontology Evolution -- Exploiting Patterns in Ontology Mapping -- Integrating Uncertainty into Ontology Mapping -- Mutual Contextualization in Tripartite Graphs of Folksonomies.

TheWorld-WideWeb continues to growand newtechnologies,modes ofinter- tions, and applications are being developed. Building on this growth, Semantic Web technologies aim at providing a shared semantic information space, cha- ing qualitatively our experiences on the Web. As Semantic Web technologies mature and permeate more and more application areas, new research challenges are coming to the fore and some unsolved ones are becoming more acute. These issues include creating and managing Semantic Web content, making Sem- tic Web applications robust and scalable, organizing and integrating infor- tion from di?erent sources for novel uses, making semantics explicit in order to improve our overallexperience with information technologies, and thus enabling us to use the wealth of information that is currently available in digital form for addressing our everyday tasks. These and other challenges brought several hundred of researchers, devel- ers,governmentworkers,venturecapitalists,students,anduserstoBusan,Korea fortheSixthInternationalSemanticWebConferencewhichwasheldjointlywith the 2nd Asian Semantic Web Conference (ISWC 2007 + ASWC 2007). We are excited to o?er this volume with the main proceedings of ISWC 2007 + ASWC 2007 to the growingcommunity of researchersand practitioners of the Semantic Web. The tremendous response to our Call for Papers from a truly international community of researchers and practitioners from 30 countries, the careful nature of the review process, and the breadth and scope of the papers ?nally selected for inclusion in this volume all speak to the quality of the c- ference and to the contributions made by the papers in these proceedings.