What can history tell us? Identifying relevant sessions for next-item recommendation

التفاصيل البيبلوغرافية
العنوان: What can history tell us? Identifying relevant sessions for next-item recommendation
المؤلفون: Sun, Ke, Qian, Tieyun, Yin, Hongzhi, Chen, Tong, Chen, Yiqi, Chen, Ling
بيانات النشر: Association for Computing Machinery
سنة النشر: 2019
المجموعة: The University of Queensland: UQ eSpace
مصطلحات موضوعية: Deep Neural Networks, Next-Item Recommendation, Session-based Recommendation, 1400 Business, Management and Accounting, 1800 Decision Sciences
الوصف: Recommendation systems have been widely applied to many E-commerce and online social media platforms. Recently, sequential item recommendation, especially session-based recommendation, has aroused wide research interests. However, existing sequential recommendation approaches either ignore the historical sessions or consider all historical sessions without any distinction that whether the historical sessions are relevant or not to the current session, which motivates us to distinguish the effect of each historical session and identify relevant historical sessions for recommendation. In light of this, we propose a novel deep learning based sequential recommender framework for session-based recommendation, which takes Nonlocal Neural Network and Recurrent Neural Network as the main building blocks. Specifically, we design a two-layer nonlocal architecture to identify historical sessions that are relevant to the current session and learn the long-term user preferences mostly from these relevant sessions. Besides, we also design a gated recurrent unit (GRU) enhanced by the nonlocal structure to learn the short-term user preferences from the current session. Finally, we propose a novel approach to integrate both long-term and short-term user preferences in a unified way to facilitate training the whole recommender model in an end-to-end manner. We conduct extensive experiments on two widely used real-world datasets, and the experimental results show that our model achieves significant improvements over the state-of-the-art methods.
نوع الوثيقة: conference object
اللغة: English
Relation: orcid:0000-0003-1395-261X; orcid:0000-0001-7269-146X; DP170103954; DP190101985
الاتاحة: https://espace.library.uq.edu.au/view/UQ:a858c3a
رقم الانضمام: edsbas.C98A59B7
قاعدة البيانات: BASE