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Variational Autoencoders for Collaborative Filtering

Open access
Liang, Dawen, Krishnan, Rahul G., Hoffman, Matthew D., Jebara, Tony·2018·Proceedings of the 2018 World Wide Web Conference on World Wide Web - WWW '18

Abstract

We extend variational autoencoders (VAEs) to collaborative filtering for implicit feedback. This non-linear probabilistic model enables us to go beyond the limited modeling capacity of linear factor models which still largely dominate collaborative filtering research.We introduce a generative model with multinomial likelihood and use Bayesian inference for parameter estimation. Despite widespread use in language modeling and economics, the multinomial likelihood receives less attention in the recommender systems literature. We introduce a different regularization parameter for the learning objective, which proves to be crucial for achieving competitive performance. Remarkably, there is an efficient way to tune the parameter using annealing. The resulting model and learning algorithm has information-theoretic connections to maximum entropy discrimination and the information bottleneck principle. Empirically, we show that the proposed approach significantly outperforms several state-of-the-art baselines, including two recently-proposed neural network approaches, on several real-world datasets. We also provide extended experiments comparing the multinomial likelihood with other commonly used likelihood functions in the latent factor collaborative filtering literature and show favorable results. Finally, we identify the pros and cons of employing a principled Bayesian inference approach and characterize settings where it provides the most significant improvements.

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Metadata

Authors
Liang, D., Krishnan, R. G., Hoffman, M. D., & Jebara, T.
Venue
Proceedings of the 2018 World Wide Web Conference on World Wide Web - WWW '18
Publisher
ACM Press
Published
2018
Pages
689-698
OpenAlex
W2963085847
Cited by
1,338
References
8
FWCI
85.71
Type
conference paper
Language
en
Open access
gold

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CoChat. (2026). Citation check: Variational Autoencoders for Collaborative Filtering. https://app.cochat.ai/papers/10.1145/3178876.3186150
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Liang, D., Krishnan, R. G., Hoffman, M. D., & Jebara, T. (2018). Variational Autoencoders for Collaborative Filtering. Proceedings of the 2018 World Wide Web Conference on World Wide Web - WWW '18. https://doi.org/10.1145/3178876.3186150

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