计算机科学 ›› 2014, Vol. 41 ›› Issue (12): 138-142.doi: 10.11896/j.issn.1002-137X.2014.12.029
马霄,甘早斌,鲁宏伟,马尧
MA Xiao,GAN Zao-bin,LU Hong-wei and MA Yao
摘要： 信任关系在用户寻找可靠信息方面扮演了重要角色。已有信任关系预测方法主要基于信任的传递性和用户间的相似度。然而,在电子商务应用中,不同声誉度的用户对于商品的评价会对其他用户的购买行为产生不同的影响,用户声誉度的差异性会在较大程度上影响用户间建立信任关系的可能性。因此,针对电子商务应用,给出了用户信任关系子网络和用户商品评价关系子网络的形式化描述。根据社会学理论,提出了一种基于用户相似度和全局声誉度的潜在信任关系预测方法,旨在挖掘电子商务应用中陌生用户间潜在的信任与不信任关系,为用户辨别评价信息的可信性,进而选择可信商品提供辅助决策。基于Epinions数据集的对比实验结果表明,该方法在信任关系预测的准确度方面有较好的表现。
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