计算机科学 ›› 2013, Vol. 40 ›› Issue (10): 132-134.
董晓华,周彦晖
DONG Xiao-hua and ZHOU Yan-hui
摘要： 针对信任推荐过程中难以鉴别恶意推荐的问题,提出一种基于相似性的信任推荐模型。模型中,借鉴社会心理学的研究成果,若两个用户在行为上具有较高的相似性,则表明他们更容易相信对方。把用户评分相似性作为信任推荐时的权重系数,理论分析和仿真结果表明:该模型可有效防范信任推荐中的恶意推荐行为,降低信任度的计算误差,从而提高信任评估的准确性。
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