| Through analyzing the requirements of trust in electronic commerce, this paper proposes PRTM (Priority trust model) which studies the reputation computing in electronic commerce and applies the reputation computing in perfect competition power market. First, the hierarchical structure of the main factors that affect the trust value is established by Delphi, and Layer Analysis Process is applied to determine the weights of various factors in PRTM, which translates qualitative analysis into quantitative analysis and makes the evaluation results more objective. Second, the trading scale is used to convert to standard transaction numbers and standard transaction satisfactory numbers in PRTM, which can prevent the cheating action of accumulating trust value in small-scale transactions. Lastly, the improved introducer protocol is adopted in PRTM, which makes the relations of trust can be built automatically. The experimental results show that the reputation computing is objective and accurate. |
