Displaying similar documents to “The Design and Evaluation of Hierarchical Multi-level Parallelisms for H.264 Encoder on Multi-core Architecture”

On the suitability of the internet multimedia storage for steganographic information transfer in MP4 files

Matúš Jókay, Ján Baroš (2012)

Kybernetika

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The aim of this work is to analyze suitability of existing internet multimedia storage services to use as a covert (steganographic) transmission channel. After general overview we focus specifically on the YouTube service. In particular, we study the feasibility of the recently proposed new steganographic technique [6] of hiding information directly in the structure of the mp4-encoded video file. Our statistical analysis of the set of 1000 video files stored by this service show the...

Fast Information Retrieval in the Open Grid Service Architecture

Berka, Tobias, Vajteršic, Marian (2011)

Serdica Journal of Computing

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This is an extended version of an article presented at the Second International Conference on Software, Services and Semantic Technologies, Sofia, Bulgaria, 11–12 September 2010. In research, grid computing is an established way of providing computer resources for information retrieval. However, e-science grids also contain, process and produce documents - thereby acting as digital libraries and requiring means for information discovery. In this paper, we discuss how distributed...

File Format for Storage of Multimedia Information

Armyanov, Peter (2010)

Mathematica Balkanica New Series

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AMS Subj. Classification: 68U05, 68P30 This article studies problems referring to storage, editing and streaming vector graphics and animation. The advantages and disadvantages of existing formats are reviewed and some suggestions to solve the problems are given. An approach for generating vector stream in a format, that allows embedding of additional media such audio and descriptive meta data is introduced. In parallel the problem of conversion multimedia files from one container...

Performance evaluation of MapReduce using full virtualisation on a departmental cloud

Horacio González-Vélez, Maryam Kontagora (2011)

International Journal of Applied Mathematics and Computer Science

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This work analyses the performance of Hadoop, an implementation of the MapReduce programming model for distributed parallel computing, executing on a virtualisation environment comprised of 1 + 16 nodes running the VMWare workstation software. A set of experiments using the standard Hadoop benchmarks has been designed in order to determine whether or not significant reductions in the execution time of computations are experienced when using Hadoop on this virtualisation platform on a...