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Web Information Systems – WISE 2004

Volume 3306 of the series Lecture Notes in Computer Science pp 641-652

Toward Semantic Web Services for Multimedia Adaptation

  • Dietmar JannachAffiliated withDepartment of Business Informatics & Application Systems, Department of Information Technology, University Klagenfurt
  • , Klaus LeopoldAffiliated withDepartment of Business Informatics & Application Systems, Department of Information Technology, University Klagenfurt
  • , Christian TimmererAffiliated withDepartment of Business Informatics & Application Systems, Department of Information Technology, University Klagenfurt
  • , Hermann HellwagnerAffiliated withDepartment of Business Informatics & Application Systems, Department of Information Technology, University Klagenfurt

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Abstract

Universal Multimedia Access (UMA), where users can consume any multimedia resource anywhere at any time, is the driving vision of ongoing ISO/IEC Moving Picture Experts Group (MPEG) standardization efforts. In that context, intelligent adaptation means that before resources are sent over the network, they are prepared according to the client’s device capabilities, the network conditions, or even the user’s content preferences. In this paper, we argue that Semantic Web Services can serve as a key enabling technology to achieve the goals of UMA. As the standards evolve, more and more specialized software tools will be available that provide specific functionalities for adapting the media in different dimensions. When the functionality of such tools is described declaratively with the means of Semantic Web Services technology, intelligent adaptation network nodes can be developed, capable of automatically composing multi-step adaptation sequences and dynamically integrating such services available on the Web. This paper describes the architecture and a prototypical implementation of an intelligent adaptation node that supports automatic, knowledge-based service composition which is made possible by the shared domain ontology defined in MPEG metadata standards.