Algorithm Research & Explore
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 5
1371-1375,1380

Sequential recommendation model that combines self-attention mechanism with long-term and short-term preferences

Shen Xuelia
Du Zhiweib
a. School of Software, b. School of Electronic & Information Engineering, Liaoning Technical University, Huludao Liaoning 125105, China
DOI: 10.19734/j.issn.1001-3695.2020.05.0121

Abstract

In order to solve the problem that the existing sequence recommendation algorithms only use short-term sequential behaviors to make recommendations, but fail to fully consider the long-term preference of users and the deeper relationship between items, this paper proposed a sequential recommendation algorithm CSALSR that it integrated self-attention mechanism and long-term and short-term preference. This model embedded the user and the item into the vector respectively, and regarded the pairwise encoding of the item in short-term interaction sequence as a three-way tensor. Then, it added self-attention mechanism on the three-way tensor and used convolutional neural network to extract the deeper connection between items from the order pattern of users. At the same time, considering the long-term preference of users, it took the embedding of similar users as a supplement to enhance the user representation. Experimental results show that the proposed method on MovieLens-1M and Gowalla data sets is superior to other methods in precision@N, recall@N and MAP.

Foundation Support

国家自然科学基金资助项目(61772249)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.05.0121
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 5
Section: Algorithm Research & Explore
Pages: 1371-1375,1380
Serial Number: 1001-3695(2021)05-016-1371-05

Publish History

[2021-05-05] Printed Article

Cite This Article

沈学利, 杜志伟. 融合自注意力机制与长短期偏好的序列推荐模型 [J]. 计算机应用研究, 2021, 38 (5): 1371-1375,1380. (Shen Xueli, Du Zhiwei. Sequential recommendation model that combines self-attention mechanism with long-term and short-term preferences [J]. Application Research of Computers, 2021, 38 (5): 1371-1375,1380. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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