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In this paper, the authors propose a trust-based exchange framework to motivate cooperation among peers of different consumption, contribution and service evaluation profiles. Their framework consists of distributed resource allocation and server selection policies based on local reputation vectors. They present how proposed policies outperform previous work and lead to the autonomic formation of coalitions between peers who mutually profit by exchanging their services. In this way the utilities of all peers progressively improve without pre-existing knowledge of one another's service evaluation and capability profiles.
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