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ThinkMind // International Journal On Advances in Software, volume 3, numbers 1 and 2, 2010 // View article soft_v3_n12_2010_2


Video Notation (ViNo): A Formalism for Describing and Evaluating Non-sequential Multimedia Access

Authors:
Anita Sobe
Laszlo Böszörmenyi
Mario Taschwer

Keywords: Multimedia Formalism; QoS; Caching; CDN; Nonsequential Multimedia

Abstract:
The contributions of this paper are threefold: (1) the extensive introduction of a formal Video Notation (ViNo) that allows for describing different multimedia transport techniques for specifying required QoS; (2) the application of this formal notation to analyzing different transport mechanisms without the need of detailed simulations; (3) further application of ViNo to caching techniques, leading to the introduction of two cache admission policies and one replacement policy supporting nonsequential multimedia access. The applicability of ViNo is shown by example and by analysis of an existing CDN simulation. We find that a pure LRU replacement yields significantly lower hit rates than our suggested popularity-based replacement. The evaluation of caches was done by simulation and by usage of ViNo.

Pages: 19 to 30

Copyright: Copyright (c) to authors, 2010. Used with permission.

Publication date: September 5, 2010

Published in: journal

ISSN: 1942-2628

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