@InProceedings{Prangl2008, author = {Prangl, Martin and Kofler, Ingo and Hellwagner, Hermann}, booktitle = {Proceedings of the 1st International Conference on Ambient Media and Systems (Ambi-sys)}, title = {An MPEG-21-driven Utility-based Multimedia Adaptation Decision Taking Web Service}, year = {2008}, address = {Brussels, Belgium}, editor = {Whitaker, Roger M and Liang, Ben}, month = feb, pages = {8}, publisher = {ICST}, series = {Ambi-sys}, abstract = {Supporting transparent delivery and convenient use of multimedia content across a wide range of networks and devices is still a challenging task within the multimedia research community; Universal Multimedia Access (UMA) is a vision that has been pursued for quite some time. In multimedia frameworks, content adaptation is the core concept to make progress toward this goal. Most media adaptation engines targeting UMA scale the content w.r.t. terminal capabilities and network resource constraints and do not sufficiently consider end user preferences or even the utility of the adapted content for the user. Based on our previous work and the support of the MPEG-21 framework, we present a transparent solution to provide a content utility-aware adaptation decision for such utility-unaware multimedia frameworks. The idea is to outsource the challenging utility-aware adaptation decision taking task, which takes many factors into consideration and leads to a complex optimization problem. A realistic use case is adopted to show how related external multimedia frameworks can easily integrate and use our proposed adaptation decision taking Web Service.}, isbn13 = {978-963-9799-16-5}, language = {EN}, location = {Quebec, Canada}, pdf = {https://www.itec.aau.at/bib/files/ADTService-final.pdf}, talkdate = {2008.02.12}, talktype = {registered} }