Computer and Modernization ›› 2014, Vol. 0 ›› Issue (4): 138-142.

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Dynamics and Stability of Trust Model in ECommerce

  

  1. Guangzhou Institute of Railway Technology, Guangzhou 510430, China
  • Received:2013-11-29 Online:2014-04-17 Published:2014-04-23

Abstract:  

 Abstract:  Currently, most researches on trust model are focused on its computability and diversity, but ignore its dynamics and stability. This paper presents a new trust model for Ecommerce system focusing on its dynamics and stability. In this trust model, peer A’s trust in peer B consists of two parts: A’s direct trust in B and the reputationbased trust of B. A’s direct trust in B is computed according to A’s rating about their transactions. The reputationbased trust of B is computed according to all peers’ transaction rating to him. Considering influence of the time factor, a new concept named credible time window is defined and a punishment mechanism for failed transactions is designed, so the dynamics trust model can motivate a fair exchange effectively. The dynamics of the model can affect the stability, how to balance them in different situation is studied. The experimental results show that this model outperforms the existing trust models in dynamics, and it can make a balance between its dynamics and stability as required.

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