The information dissemination can be affected by social reinforcement effect. Users usually can not receive the information in a short time, and when they do not receive information for a long time, the information dissemination rate will decrease because of the forgetting mechanism. Therefore, it is believed that when information dissemination is affected during the social reinforcement effect, it is also affected by the forgetting mechanism. Information dissemination rates with impact of social reinforcement effect are set as initial values of forgetting mechanism in this study. SEIR model is improved and the transfer of node state in SEIR model is redefined. Simulation results indicate that the larger of time interval for receiving information, the lower of the rate of information dissemination, and the range of information dissemination will be smaller when taking the forgetting mechanism into consideration during social reinforcement effect in social networks.%社交网络中信息传播受社会加强效应的影响, 用户通常无法在短时间内收到信息, 而长时间没有收到信息,用户会因为遗忘而导致信息传播的概率降低. 因此, 信息传播在受到社会加强效应影响期间, 也通常会受到遗忘机制的影响. 同时, 将社会加强效应影响后的信息传播概率作为遗忘机制的初值, 对SEIR模型进行改进, 重新定义SEIR模型节点状态转移. 仿真结果表明, 接收信息的时间间隔越长, 信息的传播速率越慢, 考虑社会加强效应期间遗忘机制影响, 信息的传播范围则会变小.
展开▼
