Title
Scenario-aware and Mutual-based approach for Multi-scenario Recommendation in E-Commerce
Abstract
Recommender systems (RSs) are essential for e-commerce platforms to help meet the enormous needs of users. How to capture user interests and make accurate recommendations for users in heterogeneous e-commerce scenarios is still a continuous research topic. However, most existing studies overlook the intrinsic association of the scenarios: the log data collected from platforms can be naturally divided into different scenarios (e.g., country, city, culture). We observed that the scenarios are heterogeneous because of the huge differences among them. Therefore, a unified model is difficult to effectively capture complex correlations (e.g., differences and similarities) between multiple scenarios thus seriously reducing the accuracy of recommendation results. In this paper, we target the problem of multi-scenario recommendation in e-commerce, and propose a novel recommendation model named Scenario-aware Mutual Learning (SAML) that leverages the differences and similarities between multiple scenarios. We first introduce scenario-aware feature representation, which transforms the embedding and attention modules to map the features into both global and scenario-specific subspace in parallel. Then we introduce an auxiliary network to model the shared knowledge across all scenarios, and use a multi-branch network to model differences among specific scenarios. Finally, we employ a novel mutual unit to adaptively learn the similarity between various scenarios and incorporate it into multi-branch network. We conduct extensive experiments on both public and industrial datasets, empirical results show that SAML consistently and significantly outperforms state-of-the-art methods.
Year
DOI
Venue
2020
10.1109/ICDMW51313.2020.00027
2020 International Conference on Data Mining Workshops (ICDMW)
Keywords
DocType
ISSN
Recommender Systems,E-Commerce,Personalization,Multi-Task Learning,Neural Networks
Conference
2375-9232
ISBN
Citations 
PageRank 
978-1-7281-9013-6
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Yuting Chen100.34
Yanshi Wang200.68
Yabo Ni3110.97
Anxiang Zeng4466.39
Lanfen Lin57824.70