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从众效应下的网络舆论演化

, PP. 12-17

Keywords: 观点动力学,从众效应,有限信任,复杂网络

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Abstract:

针对传统舆论演化动力学研究忽略个体决策内驱力的问题,将有限信任模型与社会心理学从众效应理论相结合,建立依从、趋同和内化3种个体状态及状态转移策略,提出了基于期望牵引力和信任邻居群的动态决策演化模型.实验结果表明在从众效应和期望牵引力共同影响下,观点出现收敛和分化,并存在小幅震荡;依从节点不会在演化稳定后消亡,而是保持低密度存在;与传统有限信任模型相比,进一步刻画社会网络中群体舆论演进和个体交互的行为特征,揭示了群体层面观点演化内在规律.

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