DeepInteract: Multi-view features interactive learning for sequential recommendation. (15th October 2022)

• Record Type: Journal Article
• Authors: Gan, Mingxin; Ma, Yingxue
• Is Part Of: Expert systems with applications. Volume 204(2022)
• Publication Date: 2022-10-15
• Subjects: Recommender system -- Multi-view feature interaction -- Sequential recommendation -- Attention network -- Deep learning; Expert systems (Computer science) -- Periodicals; Systèmes experts (Informatique) -- Périodiques; Electronic journals; 006.33
• DOI: 10.1016/j.eswa.2022.117305
• Languages: English
• ISSNs: 0957-4174

Abstract

Highlights: Multi-view feature interactive learning was introduced for sequential recommendation. Interactive feature learning balanced the contradiction between static and dynamic features. DeepInteract was proposed to improve performance via multi-view feature learning. Interactive features were demonstrated to be important for sequential recommendation. DeepInteract outperformed state-of-the-art deep models significantly. Abstract: Deep learning models have been successfully applied in sequential recommendations. However, previous studies ignored the interaction between static and dynamic features of both items and users, thus fail to exactly capture users' current preferences. To overcome this limitation, we first conducted feature representations from static, dynamic and interactive views and constructed corresponding feature mining modules. Then, based on the multi-view feature mining modules, we proposed a deep learning-based model, namely DeepInteract, to learn the interaction of multi-view features of both item profiles and user behaviors for sequential recommendation. Experimental results on three real-world datasets demonstrated that DeepInteract outperforms state-of-the-art methods not only on recommendation performance but also on stability and robustness. Furthermore, we used ablation experiments to investigate the importance of three feature mining modules on various measures of recommendation performance. It was demonstrated that interactive features play the most important role for sequential recommendation.