FR trust: a fuzzy reputation-based model for trust management in semantic P2P grids Online publication date: Thu, 18-Dec-2014
by Saeed Javanmardi; Mohammad Shojafar; Shahdad Shariatmadari; Sima S. Ahrabi
International Journal of Grid and Utility Computing (IJGUC), Vol. 6, No. 1, 2015
Abstract: A P2P grid is a special case of grid networks in which P2P communications are used for communication between nodes and trust management. This technology allows creation of a network with greater distribution and scalability. Semantic grids have appeared as an expansion of grid networks in which rich resource metadata are revealed and clearly handled. In a semantic P2P grid, nodes are clustered into different groups based on the semantic similarities between their services. This paper proposes a reputation model for trust management in a semantic P2P grid. We use fuzzy theory, in a trust overlay network named FR TRUST that models the network structure and the storage of reputation information. We present a reputation collection and computation system for semantic P2P grids. The system uses fuzzy theory to compute a peer trust level, which can be either: low, medium, or high. Experimental results demonstrate that FR TRUST combines desirable good computational complexity with high-ranking accuracy.
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