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Resource Discovery is an important key issue in grid systems since resource reservation and task scheduling are based on it. This paper proposes a novel semantic-based scalable decentralized grid RD framework. The paper integrates ontology, Peer-to-Peer network and intelligent agents to build the framework. The framework consists of an ontology model, an agent model, and a set of algorithms for implementing the P2P architecture and searching the shared resources. The paper shows how the framework satisfies grid RD features such as scalability, decentralization, dynamism and interoperability.
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