Cloud Platform Credibility Assessment System Based on D-S Theory and Blockchain Technology
Table 11
Comparison of privacy security, data stability, and objectivity.
Privacy security
Data stability
Objectivity
This paper method
Adopt blockchain technology for privacy protection
The assessment result cannot be tampered with
D-S fusion method can effectively solve the conflict information in the assessment process and ensure the objectivity of the assessment results.
Method based on AHP
No privacy protection
The assessment result is easy to be tampered with
In weight assessment, the method of pairwise comparison can effectively reduce the impact of human subjective factors.
Method based on entropy
No privacy protection
The assessment result is easy to be tampered with
Describing the credibility level by the risk uncertainty can effectively reduce the impact of human subjective factors on the assessment results.
Method based on D-S theory
No privacy protection
Because the assessment result is the fusion of different users’ assessment results, the result is not easy to be tampered with
D-S fusion method can effectively solve the conflict information in the assessment process and ensure the objectivity of the assessment results.
Method based on fuzzy theory
No privacy protection
The assessment result is easy to be tampered with
The assessment results are obtained by human subjective assessment. There is no effective method to improve the objectivity of the assessment results in the assessment process. Compared with other methods, its objectivity is low.
