计算机科学 ›› 2020, Vol. 47 ›› Issue (2): 65-71.doi: 10.11896/jsjkx.190200362
李可1,陈光平2
LI Ke1,CHEN Guang-ping2
摘要： 商品评论挖掘在商品推荐领域取得了越来越多的成果。传统的评论挖掘方法只集中在挖掘评论中隐含的浅层语义,其语义表达效果不理想。因此,目前商品推荐领域的一大挑战是如何挖掘商品评论的深层语义,提升语义表达能力,以及最大化地利用商品评论来提升商品的推荐效果。文中使用深度学习中的跨思维向量模型(Skip-Thought Vectors,STV)来学习评论的潜在语义特征。为了提升评论的语义表达能力,把深度学习中的长短记忆模型(Long Short-Term Memory,LSTM)应用于STV,结合双向信息流挖掘方法、用户情感偏好挖掘方法以及深度层级模型,引入了一种深层语义特征挖掘模型。该模型不仅能挖掘评论的深层语义特征,还能挖掘发表评论的用户的情感偏好。然后,将深层语义特征挖掘模型与矩阵分解模型(Singular Value Decomposition,SVD)相结合来实现商品推荐。在两个亚马逊数据集上的实验结果证明,所提模型在深度语义挖掘能力上优于传统的评论挖掘模型,相比使用传统评论挖掘模型的商品推荐系统提升了商品推荐的效果。
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