JIST2012: The 2nd Joint International Semantic Technology Conference Dec 2 - 4, 2012, Nara, Japan

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Tutorial: Sunday, December 2, 2012


- JSAI-SIG on Semantic Web and Ontology
- JIST Steering Committee

Supported by:


- Keihanna Web Semantics SIG
- The Telecommuni- cations Advancement Foundation
- Inoue Foundation for Science
- Kansai Rsearch Foundation for technology promotion
- Kayamori Foundation of Informational Science Advancement
- Nara Visitors Bureau

In-cooperation with:



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T1:Semantic Technologies: Beyond the Semantic Web

14:00 - 17:30 (Room 4)

Speaker: Ian Horrocks, University of Oxford, UK

Abstract: OWL ontologies and ontology-based systems are becoming increasingly important in meeting the demand for more powerful and flexible techniques for dealing with very large volumes of data. Some of these applications could reasonably be described as Semantic Web, but in many cases semantic technologies are simply used as "intelligent information systems" that provide a range of useful features, including the ability to deal with incomplete and semi-structured information, to integrate information from heterogeneous sources, to exploit richer and more flexible schemas, and to answer queries in a way that reflects both knowledge and data. These "semantic technology" applications can now be found in domains as diverse as healthcare, science, technology, aerospace and energy.

Critical to the success of OWL in this setting has been the introduction of the OWL 2 Profiles, and the resulting tremendous improvement in the performance of OWL query answering systems. In this tutorial I will:
  • Introduce OWL 2, with particular emphasis on the features of the various OWL 2 Profiles.
  • Motivate the use of OWL systems in a range of applications within and beyond the Semantic Web.
  • Present a number of different query answering procedures appropriate to different OWL profiles, explaining how they work and providing a cost-benefit analysis.
  • Review recent research aimed at overcoming some of the limitations of existing procedures and increasing the scalability and robustness of OWL systems.

Contact: jist2012@ei.sanken.osaka-u.ac.jp