An Evaluation Approach of Subjective Trust Based on Cloud Model

DOI: 10.4236/jsea.2008.11007   PDF   HTML     5,648 Downloads   10,979 Views   Citations


As online trade and interactions on the internet are on the rise, a key issue is how to use simple and effective evaluation methods to accomplish trust decision-making for customers. It is well known that subjective trust holds uncertainty like randomness and fuzziness. However, existing approaches which are commonly based on probability or fuzzy set theory can not attach enough importance to uncertainty. To remedy this problem, a new quantifiable subjective trust evaluation approach is proposed based on the cloud model. Subjective trust is modeled with cloud model in the evaluation approach, and expected value and hyper-entropy of the subjective cloud is used to evaluate the reputation of trust objects. Our experimental data shows that the method can effectively support subjective trust decisions and provide a helpful exploitation for subjective trust evaluation.

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S. Wang, L. Zhang, N. Ma and S. Wang, "An Evaluation Approach of Subjective Trust Based on Cloud Model," Journal of Software Engineering and Applications, Vol. 1 No. 1, 2008, pp. 44-52. doi: 10.4236/jsea.2008.11007.

Conflicts of Interest

The authors declare no conflicts of interest.


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