research-article

Stochastic-Expert Variational Autoencoder for Collaborative Filtering

Authors:

Min-hwan OhAuthors Info & Claims

WWW '22: Proceedings of the ACM Web Conference 2022

Pages 2482 - 2490

https://doi.org/10.1145/3485447.3512120

Published: 25 April 2022 Publication History

Abstract

Motivated by the recent successes of deep generative models used for collaborative filtering, we propose a novel framework of VAE for collaborative filtering using multiple experts and stochastic expert selection, which allows the model to learn a richer and more complex latent representation of user preferences. In our method, individual experts are sampled stochastically at each user-item interaction which can effectively utilize the variability among multiple experts. While we propose this framework in the context of collaborative filtering, the proposed stochastic expert technique can be used to enhance VAEs in general beyond the application of collaborative filtering. Hence, this novel technique can be of independent interest. We comprehensively evaluate our proposed method, Stochastic-Expert Variational Autoencoder (SE-VAE) on numerical experiments on the real-world benchmark datasets from MovieLens and Netflix and show that it consistently outperforms the existing state-of-the-art methods across all metrics. Our proposed stochastic expert framework is generic and adaptable to any VAE architecture. The experimental results show that the adaptations to various architectures provided performance gains over the existing methods.

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Cited By

Ayemowa MIbrahim RKhan M(2024)Analysis of Recommender System Using Generative Artificial Intelligence: A Systematic Literature ReviewIEEE Access10.1109/ACCESS.2024.341696212(87742-87766)Online publication date: 2024
https://doi.org/10.1109/ACCESS.2024.3416962
Chen RFan JWu M(2024)ABNSExpert Systems with Applications: An International Journal10.1016/j.eswa.2024.123868250:COnline publication date: 15-Sep-2024
https://dl.acm.org/doi/10.1016/j.eswa.2024.123868
Rao QLiu YPan WMing Z(2023)BVAE: Behavior-aware Variational Autoencoder for Multi-Behavior Multi-Task RecommendationProceedings of the 17th ACM Conference on Recommender Systems10.1145/3604915.3608781(625-636)Online publication date: 14-Sep-2023
https://dl.acm.org/doi/10.1145/3604915.3608781
Show More Cited By

Index Terms

Stochastic-Expert Variational Autoencoder for Collaborative Filtering
1. Computing methodologies
  1. Machine learning
2. Information systems
  1. Information retrieval
    1. Retrieval tasks and goals

Index terms have been assigned to the content through auto-classification.

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Published In

cover image ACM Conferences

WWW '22: Proceedings of the ACM Web Conference 2022

April 2022

3764 pages

ISBN:9781450390965

DOI:10.1145/3485447

Editors:
Frédérique Laforest
INSA Lyon, France
,
Raphaël Troncy
EURECOM, France
,
Elena Simperl
King’s College London, UK
,
Deepak Agarwal
Pinterest, USA
,
Aristides Gionis
KTH Royal Institute of Technology, Sweden
,
Ivan Herman
W3C / retired
,
Lionel Médini
Université Lyon 1, France

Copyright © 2022 ACM.

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Publication History

Published: 25 April 2022

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Research-article
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Funding Sources

Institute of Information & communications Technology Planning & Evaluation (IITP)
National Research Foundation of Korea

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WWW '22

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SIGWEB

WWW '22: The ACM Web Conference 2022

April 25 - 29, 2022

Virtual Event, Lyon, France

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Overall Acceptance Rate 1,899 of 8,196 submissions, 23%

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Cited By

Ayemowa MIbrahim RKhan M(2024)Analysis of Recommender System Using Generative Artificial Intelligence: A Systematic Literature ReviewIEEE Access10.1109/ACCESS.2024.341696212(87742-87766)Online publication date: 2024
https://doi.org/10.1109/ACCESS.2024.3416962
Chen RFan JWu M(2024)ABNSExpert Systems with Applications: An International Journal10.1016/j.eswa.2024.123868250:COnline publication date: 15-Sep-2024
https://dl.acm.org/doi/10.1016/j.eswa.2024.123868
Rao QLiu YPan WMing Z(2023)BVAE: Behavior-aware Variational Autoencoder for Multi-Behavior Multi-Task RecommendationProceedings of the 17th ACM Conference on Recommender Systems10.1145/3604915.3608781(625-636)Online publication date: 14-Sep-2023
https://dl.acm.org/doi/10.1145/3604915.3608781
Feng JLiu MLiang XNie T(2023)ALCRKnowledge-Based Systems10.1016/j.knosys.2023.110829278:COnline publication date: 25-Oct-2023
https://dl.acm.org/doi/10.1016/j.knosys.2023.110829
Feng JLiu MHong SSong S(2023)A Novel Variational Autoencoder with Multi-position Latent Self-attention and Actor-Critic for RecommendationAdvanced Data Mining and Applications10.1007/978-3-031-46661-8_11(155-167)Online publication date: 27-Aug-2023
https://dl.acm.org/doi/10.1007/978-3-031-46661-8_11

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