作者: Qiang Liu , Chengwei Wang , Congfu Xu
关键词: Factor analysis 、 Collaborative filtering 、 Machine learning 、 Recommender system 、 Artificial intelligence 、 Data mining 、 Computer science 、 Probabilistic logic 、 Regularization (mathematics) 、 Matrix decomposition 、 Context model
摘要: As a state-of-the-art recommendation technique, collaborative filtering (CF) methods compute recommendations by leveraging historical data set of users' ratings for items. So far, the best performing CF are latent factor models. Probabilistic matrix factorization (PMF) model, as widely used offers probabilistic foundation regularization. In this paper, we present novel method incorporating implicit relationship between items into basic PMF model. Firstly mine correlation based on model utilizing contextual information, and then generalize obtained item We validate our approach two datasets, experimental results show that proposed outperforms several existing