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https://hdl.handle.net/2440/134096
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Type: | Conference paper |
Title: | Neural variational matrix factorization with side information for collaborative filtering |
Author: | Xiao, T. Shen, H. |
Citation: | Lecture Notes in Artificial Intelligence, 2019 / Yang, Q., Zhou, Z.H., Gong, Z., Zhang, M.L., Huang, S.J. (ed./s), vol.11439, pp.414-425 |
Publisher: | Springer Nature |
Publisher Place: | Switzerland |
Issue Date: | 2019 |
Series/Report no.: | Lecture Notes in Artificial Intelligence |
ISBN: | 9783030161477 |
ISSN: | 0302-9743 1611-3349 |
Conference Name: | Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD) (14 Apr 2019 - 17 Apr 2019 : Macau, China) |
Editor: | Yang, Q. Zhou, Z.H. Gong, Z. Zhang, M.L. Huang, S.J. |
Statement of Responsibility: | Teng Xiao and Hong Shen |
Abstract: | Probabilistic Matrix Factorization (PMF) is a popular technique for collaborative filtering (CF) in recommendation systems. The purpose of PMF is to find the latent factors for users and items by decomposing a user-item rating matrix. Most methods based on PMF suffer from data sparsity and result in poor latent representations of users and items. To alleviate this problem, we propose the neural variational matrix factorization (NVMF) model, a novel deep generative model that incorporates side information (features) of both users and items, to capture better latent representations of users and items for the task of CF recommendation. Our NVMF consists of two end-to-end variational autoencoder neural networks, namely user neural network and item neural network respectively, which are capable of learning complex nonlinear distributed representations of users and items through our proposed variational inference. We derive a Stochastic Gradient Variational Bayes (SGVB) algorithm to approximate the intractable posterior distributions. Experiments conducted on three publicly available datasets show that our NVMF significantly outperforms the state-of-the-art methods. |
Keywords: | Collaborative filtering; neural network; matrix factorization; deep generative process; variational inference |
Rights: | © Springer Nature Switzerland AG 2019 |
DOI: | 10.1007/978-3-030-16148-4_32 |
Grant ID: | http://purl.org/au-research/grants/arc/DP150104871 |
Published version: | http://dx.doi.org/10.1007/978-3-030-16148-4_32 |
Appears in Collections: | Computer Science publications |
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