Capacity Planning for Web Services: metrics, models, and methods
Capacity Planning for Web Services: metrics, models, and methods
Improving Search in Peer-to-Peer Networks
ICDCS '02 Proceedings of the 22 nd International Conference on Distributed Computing Systems (ICDCS'02)
Analyzing peer-to-peer traffic across large networks
IEEE/ACM Transactions on Networking (TON)
A measure for cluster cohesion in semantic overlay networks
Proceedings of the 2008 ACM workshop on Large-Scale distributed systems for information retrieval
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The hit rate of basic Peer-to-Peer protocols can be increased by using semantic metadata to transform the network structure or construct an overlay network. These semantic protocols benefit from the observation that the pattern of the stored or queried documents depends on the fields of interest of the nodes in the network. However, the performance of such networks highly depends on boundary conditions. These conditions determine both the probability of a successful query and the network traffic generated by the queries. In this paper, we will propose an analytical model that calculates the success rate of a query in a peer-to-peer system with a semantic overlay network. With the model, it is possible to optimize these systems by finding the appropriate values for the boundary conditions when designing the network or at runtime. The model has also been validated with a series of simulations.