Full Text:   <5779>

Summary:  <1874>

CLC number: TP181

On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 2020-07-13

Cited: 0

Clicked: 8051

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Cheng-wei Wang

https://orcid.org/0000-0002-6514-2603

Gang Chen

https://orcid.org/0000-0002-7483-0045

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Article info.
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Frontiers of Information Technology & Electronic Engineering  2020 Vol.21 No.8 P.1206-1216

http://doi.org/10.1631/FITEE.1900382


HAM: a deep collaborative ranking method incorporating textual information


Author(s):  Cheng-wei Wang, Teng-fei Zhou, Chen Chen, Tian-lei Hu, Gang Chen

Affiliation(s):  The Key Laboratory of Big Data Intelligent Computing of Zhejiang Province, Hangzhou 310027, China; more

Corresponding email(s):   rr@zju.edu.cn, zhoutengfei@zju.edu.cn, cc33@zju.edu.cn, htl@zju.edu.cn, cg@zju.edu.cn

Key Words:  Deep learning, Recommendation system, Highway network, Block coordinate descent



Abstract: 
The recommendation task with a textual corpus aims to model customer preferences from both user feedback and item textual descriptions. It is highly desirable to explore a very deep neural network to capture the complicated nonlinear preferences. However, training a deeper recommender is not as effortless as simply adding layers. A deeper recommender suffers from the gradient vanishing/exploding issue and cannot be easily trained by gradient-based methods. Moreover, textual descriptions probably contain noisy word sequences. Directly extracting feature vectors from them can harm the recommender’s performance. To overcome these difficulties, we propose a new recommendation method named the HighwAy recoMmender (HAM). HAM explores a highway mechanism to make gradient-based training methods stable. A multi-head attention mechanism is devised to automatically denoise textual information. Moreover, a block coordinate descent method is devised to train a deep neural recommender. Empirical studies show that the proposed method outperforms state-of-the-art methods significantly in terms of accuracy.

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