尖叫效应传播机制及仿真研究

Research of the Propagation Mechanism of Scream Effect and its Simulation

基于社交网络模型,建立了边权偏重因子、主动影响力函数、被动影响度函数和兴趣阈值等一系列网络指标;借鉴SEIR模型,引入脉冲函数族研究“尖叫效应”的形成过程,刻画了信息传播中各类人群动态变化过程及变化趋势;提出了提高兴趣阈值、降低脉冲强度和屏蔽特定用户等控制或消除“尖叫效应”的策略;基于真实的社交网络结构数据,通过仿真研究模拟了“尖叫效应”的形成机制,验证了本文提出的控制或消除“尖叫效应”策略的有效性.

Based on the social network model,a series of network indicators such as edge weight bias factor,active influence function,passive influence function and interest threshold are established.Based on the SEIR model,the pulse function family is introduced to study the propagation mechanism of the"Scream Effect",and the dynamic change process and change trend of various groups of people in information dissemination are described.Strategies to control or eliminate the"Scream Effect"such as increasing the interest threshold,reducing the pulse intensity and shielding specific users are proposed.Based on the real social network structure data,the propagation mechanism of the"Scream Effect"is simulated,and the validity of the proposed strategy of controlling or eliminating the"Scream Effect"is verified.