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-  2015 

Web社会网络中引入群体凝聚度的信任模型 A group cohesive enabled trust model in Web-based social networks

Keywords: 信任,凝聚群,群凝聚度,Web社会网络,凝聚信任度

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Abstract:

根据社会网络中人们的行动决策会受到周围人群影响的特征,在Web社会网络环境中提出了一个引入群体凝聚度的信任模型GC-Trust.模型首先对节点进行凝聚群的划分,其次从两个层面研究信任度,一是凝聚群之间的信任度,二是凝聚群与单个节点之间的信任度,再利用节点所在凝聚群内的群凝聚度以及节点在自身凝聚群中的影响力作为不同信任度之间的权重将他们进行综合,从而综合形成节点的凝聚信任度,以便选择合适的对象.实验表明GC-Trust模型与Tidal Trust模型以及基于同质度的信任模型相比,在凝聚群规模相对平衡且凝聚度高的环境中具有更高信任预测准确度

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