Journal ArticleDOI
Synchronization representation and traffic source modeling in orchestrated presentation
TLDR
A methodology based on probabilistic, attributed context free grammar (PACFG) is proposed, which is applied to the OCPN/DTPN representation of a typical multimedia application vis-a-vis orchestrated presentation, demonstrating the appropriateness of this methodology.Abstract:
Multimedia applications comprise several media streams, which are semantically synchronized at different time instants. The application behavior is stored along with the multimedia database using representation mechanisms such as OCPN (object composition Petri nets) or dynamic timed Petri nets (DTPN). It is imperative that one translates the application behavior to the corresponding schedulable entities, such as packets, so that the performance engineering of any system can be done, using the traffic model arising out of the (media related) application behavior as opposed to individual media level behavior. This requires that a function be defined, which takes the stored temporal representation as input and produces packets as output, preserving the semantic relationships among the streams. The authors propose a methodology based on probabilistic, attributed context free grammar (PACFG) to address this issue. They demonstrate the appropriateness of this methodology by applying it to the OCPN/DTPN representation of a typical multimedia application vis-a-vis orchestrated presentation.read more
Citations
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Proceedings ArticleDOI
CHIMP: a framework for supporting distributed multimedia document authoring and presentation
TL;DR: This paper proposes a framework for distributed multimedia document authoring and presentation, and proposes shortestpath based algorithms for solving difference constraints, and shows how the proposed algorithms can handle local editing and access filtering of multimedia documents.
Journal ArticleDOI
Retrieval schedules based on resource availability and flexible presentation specifications
TL;DR: In this article, the authors developed techniques for deriving a flexible object retrieval schedule for a distributed multimedia document presentation based on flexible temporal specification of the multimedia document using the difference constrai ects approach.
Proceedings ArticleDOI
MOCS: an object-oriented programming model for multimedia object communication and synchronization
Chi-Leung Fung,Man-Chi Pong +1 more
TL;DR: A mechanical way to transform a declarative synchronization specification to operational implementation is devised and implemented in SAMOCS (software architecture for MOCS), which provides application programming interface routines to let the programmer develop distributed multimedia programs more easily.
Journal ArticleDOI
Collaborative multimedia systems: synthesis of media objects
TL;DR: A theory of media objects is developed, and optimal algorithms for collaborative object sharing/synthesis of the sort envisaged above are presented, extended to incorporate quality constraints (such as image size) as well as distribution across multiple nodes.
Journal ArticleDOI
View management in multimedia databases
TL;DR: A probabilistic model of interactive multimedia presentations is developed, extending the non-interactive model described earlier, and three utility-theoretic based types of prefetching algorithms that anticipate how users will interact with the presentation are developed.
References
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Maintaining knowledge about temporal intervals
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