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Business oriented grids call for effective Quality of Service strategies able to adapt to different user requirements. Performance analyses and predictions with respect to different load conditions or management policies are essential instruments to define such strategies. In this paper, we present a non-Markovian Stochastic Petri Net model that allows to conduct performance analyses of Grid systems...
e-science and e-research is about supporting collaborations especially those that cross administrative boundaries. Typically this is achieved through establishing virtual organizations (VOs) where several institutions and individuals wish to contribute resources for their mutual interest, e.g. to address a given research topic. VOs can be fluid in nature and any individual/cooperating entity may in...
The convergence between Web services and grid computing became possible the integration of distributed services, providing the use of sharing and coordinated resources on the network. In this environment, the purpose of a Metascheduler would improve the performance, availability and scalability of the resources. In this paper, we present a Metascheduler framework aiming QoS provision in Web services...
Grid provides an infrastructure to meet the high demands for resource sharing and collaboration. Semantic Grid contributes to create shared knowledge in a virtual organization (VO) based on semantic metadata. While it achieved providing relevant resource to users, a new Grid problem appears-personalized resource provision. Semantics regards the resources themselves rather than the surrounding information,...
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