30 Int. J. Adaptive and Innovative Systems, Vol. 1, No. 1, 2009 Adaptive multimedia systems based on intelligent context management Dimitris N. Kanellopoulos Educational Software Development Laboratory (ESDLab), Department of Mathematics, University of Patras, GR 26500, Patras, Greece E-mail: d_kan2006@yahoo.gr Abstract: Recently, multimedia computing turns into mobile, pervasive and context-aware. Adaptive multimedia computing is becoming the new paradigm for building complex information systems based on the use of different devices, web services and XML specifications. In dynamic environments, multimedia applications are potentially adaptive and are aware of their changing contexts. An intelligent context-aware infrastructure must be based on an appropriate context model such as to represent, manage and access context information. This paper proposes an ontology-based context model that supports context reasoning and context management for adaptive multimedia systems. The proposed model is flexible as it provides a general framework that can be applied to each multimedia application. Moreover, the model is extensible as it provides mechanisms to add new multimedia domain specifications. Keywords: context ontology; context management; adaptive multimedia systems; web services. Reference to this paper should be made as follows: Kanellopoulos, D. (2009) ‘Adaptive multimedia systems based on intelligent context management’, Int. J. Adaptive and Innovative Systems, Vol. 1, No. 1, pp.30–43. Biographical note: Dimitris Kanellopoulos holds a PhD degree in Multimedia Communications from the Department of Electrical and Computer Engineering of the University of Patras, Greece. He is a member of the Educational Software Development Laboratory (ESDLab) in the Department of Mathematics at the University of Patras. His research interests include multimedia communications, intelligent information systems, knowledge representation, web engineering and web-based education. He has authored many papers in international journals and conferences at these areas. He serves as an Editor in various academic journals. 1 Introduction Multimedia referred to as the melding of text, sound, photos and video to create amazing documents and presentations. Today, modern enterprises and organisations are equipped with multimedia systems that provide different types of services in order to meet and satisfy different user requirements. In a multimedia environment, adaptivity is considered in three different variations (Gecsei, 1997). Copyright © 2009 Inderscience Enterprises Ltd.