Evaluating transaction trust and risk levels in peer-to-peer e-commerce environments |
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Authors: | Yan Wang Duncan S Wong Kwei-Jay Lin Vijay Varadharajan |
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Affiliation: | (1) Department of Computing, Macquarie University, Sydney, NSW, 2109, Australia;(2) Department of Computer Science, City University of Hong Kong, Hong Kong, China;(3) Department of Electrical Engineering and Computer Science, University of California-Irvine, Irvine, CA 92697, USA |
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Abstract: | Trust evaluation is critical to peer-to-peer (P2P) e-commerce environments. Traditionally the evaluation process is based
on other peers' recommendations neglecting transaction amounts. This may lead to the bias in transaction trust evaluation
and risk the new transaction. The weakness may be exploited by dishonest sellers to obtain good transaction reputation by
selling cheap goods and then cheat buyers by selling expensive goods. In this paper we present a novel model for transaction
trust evaluation, which differentiates transaction amounts when computing trust values. The trust evaluation is dependent
on transaction history, the amounts of old transactions, and the amount of the new transaction. Therefore, the trust value
can be taken as the risk indication of the forthcoming transaction and is valuable for the decision-making of buyers. |
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Keywords: | Trust evaluation E-commerce Risk level Peer-to-peer networks |
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