A Dynamic Trust Model Based on Time Decay Factor

This paper presents a dynamic trust model based on time decay factor, between user trust value computation, bearing in mind the time factor's influence on the trust value, the farther the distance from the current time of interaction in the trust value calculation of reference value. When users do not interact for a period of time, their trust value drops over time. Through theoretical analysis and simulation experiments, the model can calculate the dynamic trust value between users well.