---+ <nop>GREDIA: Grid enabled access to rich media content ---++ Overview GREDIA is an FP6 project funded by the European Union. Our team, as technical coordinators and Grid technology experts, is developing a a generic middle-ware platform, based on our proposed service-oriented architecture, *RDLS* (Rich Data Location Services) , which enables efficient content management in Grid environments. RDLS can be efficiently integrated in existing Grid middlewares, such as [[http://www.globus.org][Globus Toolkit 4]], as it complies with WSRF, a standard posed by the [[http://www.gridforum.org/][Open Grid Forum]]. Our design introduces concepts from *Peer-to-Peer* and distributed computing in order to provide a scalable and reliable infrastructure for storage, search and retrieval of annotated multimedia content. To ensure fast searching of media in the distributed repositories of a Virtual Organization, our system incorporates a *multidimensional indexing* scheme, which serves the need for supporting both *point and range queries* over a set of meta-data attributes. Finally, multimedia file transfers are conducted using GridTorrent, a grid-enabled, Peer-to-Peer mechanism that allows the aggregate data transfer throughput to scale and effectively copes with flash crowds. GridTorrent has backward compatibility with the file transfer utility [[http://www.globus.org/toolkit/docs/4.0/data/gridftp/][GridFTP]], which is adopted by the Grid community. ---++ Publications * A. Asiki, K. Doka, I. Konstantinou, A. Zissimos and N. Koziris, *"A Distributed Architecture for Multi-dimensional Indexing and Data Retrieval in Grid Environments,"* _in Proceedings of the Cracow 07 Grid Workshop_, Cracow, Poland, October 2007
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