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A Simple Convolutional Generative Network for Next Item Recommendation

Open access
Yuan, Fajie, Karatzoglou, Alexandros, Arapakis, Ioannis, Jose, Joemon M., He, Xiangnan·2019·Proceedings of the Twelfth ACM International Conference on Web Search and Data Mining

Abstract

Convolutional Neural Networks (CNNs) have been recently introduced in the domain of session-based next item recommendation. An ordered collection of past items the user has interacted with in a session (or sequence) are embedded into a 2-dimensional latent matrix, and treated as an image. The convolution and pooling operations are then applied to the mapped item embeddings. In this paper, we first examine the typical session-based CNN recommender and show that both the generative model and network architecture are suboptimal when modeling long-range dependencies in the item sequence. To address the issues, we introduce a simple, but very effective generative model that is capable of learning high-level representation from both short- and long-range item dependencies. The network architecture of the proposed model is formed of a stack of holed convolutional layers, which can efficiently increase the receptive fields without relying on the pooling operation. Another contribution is the effective use of residual block structure in recommender systems, which can ease the optimization for much deeper networks. The proposed generative model attains state-of-the-art accuracy with less training time in the next item recommendation task. It accordingly can be used as a powerful recommendation baseline to beat in future, especially when there are long sequences of user feedback.

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Metadata

Authors
Yuan, F., Karatzoglou, A., Arapakis, I., Jose, J. M., & He, X.
Venue
Proceedings of the Twelfth ACM International Conference on Web Search and Data Mining
Publisher
ACM
Published
2019-01-30
Pages
582-590
OpenAlex
W2902040508
Cited by
640
References
26
FWCI
51.18
Type
conference paper
Language
en
Open access
green

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CoChat. (2026). Citation check: A Simple Convolutional Generative Network for Next Item Recommendation. https://app.cochat.ai/papers/10.1145/3289600.3290975
The paper
Yuan, F., Karatzoglou, A., Arapakis, I., Jose, J. M., & He, X. (2019). A Simple Convolutional Generative Network for Next Item Recommendation. Proceedings of the Twelfth ACM International Conference on Web Search and Data Mining. https://doi.org/10.1145/3289600.3290975

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