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Deep Variational Matrix Factorization with Knowledge Embedding for Recommendation System
DOI:10.1109/TKDE.2019.2952849.png)
Abstract
En 中文
Automatic recommendation has become an increasingly relevant problem to industries, which allows users to discover new items that match their tastes and enables the system to target items to the right users. In this article, we have proposed a deep learning based fully Bayesian treatment recommendation framework, DVMF, which has high-quality performance and ability to integrate any kinds of side information handily and efficiently. In DVMF, the variational inference technique and the reparameterization tricks are introduced to make DVMF possible to be optimized by the stochastic gradient-based methods, in addition, two novel deep neural networks have been constructed to infer the hyper-parameters of the distributions of latent factors from the knowledge of user and item, which are represented as low-dimensional real-valued vectors retaining primary features. Experimental results on five public databases indicate that the proposed method performs better than the state-of-the-art recommendation algorithms on prediction accuracy in terms of quantitative assessments.
Keywords:
Neural networks
Deep learning
Bayes methods
Knowledge engineering
Predictive models
Probability density function
Collaboration
Deep learning
matrix factorization
recommendation system
representation learning
variational inference
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