Journal of Applied Sciences ›› 2024, Vol. 42 ›› Issue (3): 513-524.doi: 10.3969/j.issn.0255-8297.2024.03.012

• Computer Science and Applications • Previous Articles     Next Articles

xDeepFM Recommendation Model Based on Field Factorization

LI Zijie1,2, ZHANG Shu1,2, OUYANG Zhaoxiang1,3, WANG Jun1,2, WU Di1,2   

  1. 1. Key Laboratory of Educational Information for Nationalities, Ministry of Education, Yunnan Normal University, Kunming 650500, Yunnan, China;
    2. Yunnan Key Laboratory of Smart Education, Yunnan Normal University, Kunming 650500, Yunnan, China;
    3. School of Information, Dehong Teacher's College, Mangshi 678400, Yunnan, China
  • Received:2021-12-15 Published:2024-06-06

Abstract: The eXtreme deep factorization machine (xDeepFM) is a context-aware recommendation model integrating a compressed interaction network for controllable feature cross-ordering. The network is combined with deep neural network to optimize the recommendation performance. To further improve xDeepFM’s performance in recommended scenarios, eXtreme deep field factorization machine (xDeepFFM) is proposed in this paper. The improved model enhances feature expression capabilities through field information and uses multiple compressed interaction networks to learn higher-order combinatorial features based on field information. Furthermore, this paper analyzes the rationality of the setting of user field and item field. The effectiveness of the improved model is evaluated using area under curve and Log-likelihood loss metrics on three public datasets of different sizes.

Key words: recommendation algorithm, eXtreme deep factorization machine (xDeepFM), field factorization, deep learning

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