Displaying similar documents to “A WEB services composition with BPEL and satellite image processing for urban and river bed changes assessment.”

Interoperability of Cross-Border European Egovernment Services: Some Design Issues

Stefanova, Kamelia, Nikolov, Roumen (2008)

Serdica Journal of Computing

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The authors analyse some of the research outcomes achieved during the implementation of the EC GUIDE research project “Creating an European Identity Management Architecture for eGovernment”, as well as their personal experience. The project goals and achievements are however considered in a broader context. The key role of Identity in the Information Society was emphasised, that the research and development in this field is in its initial phase. The scope of research related to Identity,...

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...

Resource and service discovery in SOAs: A P2P oriented semantic approach

Giuseppe Di Modica, Orazio Tomarchio, Lorenzo Vita (2011)

International Journal of Applied Mathematics and Computer Science

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An intense standardization process is favouring the convergence of grids and Service Oriented Architectures (SOAs). One of the benefits of such technological convergence is that grid resources and applications can be virtualized by services and offered through the SOA paradigm. In the broad and interoperable scenarios enabled by the SOA, involving the participation of several grid infrastructures across many administrative domains, service discovery can be a serious issue. In this paper...

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...

Services on Application Level in Grid for Scientific Calculations

Goranova, Radoslava (2010)

Mathematica Balkanica New Series

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AMS Subj. Classification: 00-02, (General) The Grid is a hardware and software infrastructure that coordinates access to distribute computational and data resources, shared by different institutes, computational centres and organizations. The Open Grid Services Architecture (OGSA) describes an architecture for a service-oriented grid computing environment, based on Web service technologies, WSDL and SOAP. In this article we investigate possibilities for realization of business...