Semantic Web Technologies – Trends and Research in Ontology–based Systems

Dr John Davies leads the Next Generation Web research group at BT. Current interests focus on the application of semantic web technology to knowledge management and semantic web services. John is industrial chair of the Semantic Web Services Initiative, co-organiser of the European Semantic Web Conference series and Project Director of the SEKT EU integrated project (Semantically-Enabled Knowledge Technologies). He has written and edited many papers and books in related areas. Rudi Studer is Professor at Institute of Applied Informatics and Formal Description Methods, University of Karlsruhe. His research spans the fields of business intelligence, e-learning, knowledge discovery and management, ontology-based knowledge management systems and the semantic web. He has authored numerous journal and conference papers on these topics. Paul Warren works in BT's Next Generation Web research group, where he is SEKT project manager and also responsible for the project's exploitation strategy. Paul has published widely on technology management, technology foresight, and recently the application of the Semantic Web.

Foreword. 1. Introduction. 1.1. Semantic Web Technologies. 1.2. The Goal of the Semantic Web. 1.3. Ontologies and Ontology Languages. 1.4. Creating and Managing Ontologies. 1.5. Using Ontologies. 1.6. Applications. 1.7. Developing the Semantic Web. References. 2. Knowledge Discovery for Ontology Construction. 2.1. Introduction. 2.2. Knowledge Discovery. 2.3. Ontology Definition. 2.4. Methodology for Semi-automatic Ontology Construction. 2.5. Ontology Learning Scenarios. 2.6. Using Knowledge Discovery for Ontology Learning. 2.7. Related Work on Ontology Construction. 2.8. Discussion and Conclusion. Acknowledgments. References. 3. Semantic Annotation and Human Language Technology. 3.1. Introduction. 3.2. Information Extraction: A Brief Introduction. 3.3. Semantic Annotation. 3.4. Applying 'Traditional' IE in Semantic Web Applications. 3.5. Ontology-based IE. 3.6. Deterministic Ontology Authoring using Controlled Language IE. 3.7. Conclusion. References. 4. Ontology Evolution. 4.1. Introduction. 4.2. Ontology Evolution: State-of-the-art. 4.3. Logical Architecture. 4.4. Data-driven Ontology Changes. 4.5. Usage-driven Ontology Changes. 4.6. Conclusion. References. 5. Reasoning With Inconsistent Ontologies: Framework, Prototype, and Experiment. 5.1. Introduction. 5.2. Brief Survey of Approaches to Reasoning with Inconsistency. 5.3. Brief Survey of Causes for Inconsistency in the Semantic WEB. 5.4. Reasoning with Inconsistent Ontologies. 5.5. Selection Functions. 5.6. Strategies for Selection Functions. 5.7. Syntactic Relevance-Based Selection Functions. 5.8. Prototype of Pion. 5.9. Discussion and Conclusions. Acknowledgment. References. 6. Ontology Mediation, Merging, and Aligning. 6.1. Introduction. 6.2. Approaches in Ontology Mediation. 6.3. Mapping and Querying Disparate Knowledge Bases. 6.4. Summary. References. 7. Ontologies for Knowledge Management. 7.1. Introduction. 7.2. Ontology usage Scenario. 7.3. Terminology. 7.4. Ontologies as RDBMS Schema. 7.5. Topic-ontologies versus Schema-ontologies. 7.6. Proton Ontology. 7.7. Conclusion. References. 8. Semantic Information Access. 8.1. Introduction. 8.2. Knowledge Access and the Semantic WEB. 8.3. Natural Language Generation from Ontologies. 8.4. Device Independence: Information Anywhere. 8.5. SEKTAgent. 8.6. Concluding Remarks. References. 9. Ontology Engineering Methodologies. 9.1. Introduction. 9.2. The Methodology Focus. 9.3. Past and Current Research. 9.4. Diligent Methodology. 9.5. First Lessons Learned. 9.6. Conclusion and Next Steps. References. 10. Semantic Web Services-Approaches and Perspectives. 10.1. Semantic Web Services-A Short Overview. 10.2. The WSMO Approach. 10.3. The OWL-S Approach. 10.4. The SWSF Approach. 10.5. The IRS-III Approach. 10.6. The WSDL-S Approach. 10.7. Semantic Web Services Grounding: The Link Between The SWS and Existing Web Services Standards. 10.8. Conclusions and Outlook. References. 11. Applying Semantic Technology to a Digital Library. 11.1. Introduction. 11.2. Digital Libraries: The State-of-the-art. 11.3. A Case Study: the BT Digital Library. 11.4. The Users' View. 11.5. Implementing Semantic Technology in a Digital Library. 11.6. Future Directions. References. 12. Semantic Web: A Legal Case Study. 12.1. Introduction. 12.2. Profile of The Users. 12.3. Ontologies for Legal Knowledge. 12.4. Architecture. 12.5. Conclusions. References. 13. A Semantic Service Oriented Architecture for the Telecommunications Industry. 13.1. Introduction. 13.2. Introduction to Service Oriented Architectures. 13.3. A Semantic Service Orientated Architecture. 13.4. Semantic Mediation. 13.5. Standards and Ontologies in Telecommunications. 13.6. Case Study. 13.7. Conclusion. References. 14. Conclusion and Outlook. 14.1. Management of Networked Ontologies. 14.2. Engineering of Networked Ontologies. 14.3. Contextualizing Ontologies. 14.4. Cross Media Resources. 14.5. Social Semantic Desktop. 14.6. Applications. Index.