Peer-to-peer systems like KaZaa use the notion of super-peers to improve search performance. In this paper, we analyze the impact of Internet Service Providers deploying these super-peers in the ir networks. The principle benefits for ISPs are the ability to perform P2P traffic engineering and to push content directly to the users, both of which translate into economic value for the ISPs. The benefit for end users is improved search performance. We propose and evaluate a technique called Topic-based Search Optimization that can be used by super-peers to improve search performance.
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