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To select a most trustworthy one among web services with the same functionality, a trust and reputation management framework for web service selection is proposed. A reputation evaluation algorithm is proposed for the new added web service based on the similarity theory. Similarities and trusts are used as weights for computing reputations from different recommenders. Updating algorithms for trusts and reputations are proposed. Service oriented enterprise applications have emerged in recently years. They are realized by composing web services used as fundamental building blocks.
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