International Journals of Advanced Information Science and Technology (IJAIST)
Most systems sharply divide the trust value into right or wrong, thus ignoring another core dimension of trust: node failure and network traffic i.e. uncertainty. It deeply impacts a node's anticipation of others' behavior and decisions during interaction. This technique included in the reputation system. A new model is defined to directly reflect a node's confidence in the sufficiency of its past experience, and study how the collection of trust information affects uncertainty in nodes' opinions. After defining a way, mobility is exploited efficiently to reduce node failure and network traffic and to speed up trust convergence.