Title
Deep Rating Elicitation for New Users in Collaborative Filtering
Abstract
Recent recommender systems started to use rating elicitation, which asks new users to rate a small seed itemset for inferring their preferences, to improve the quality of initial recommendations. The key challenge of the rating elicitation is to choose the seed items which can best infer the new users’ preference. This paper proposes a novel end-to-end Deep learning framework for Rating Elicitation (DRE), that chooses all the seed items at a time with consideration of the non-linear interactions. To this end, it first defines categorical distributions to sample seed items from the entire itemset, then it trains both the categorical distributions and a neural reconstruction network to infer users’ preferences on the remaining items from CF information of the sampled seed items. Through the end-to-end training, the categorical distributions are learned to select the most representative seed items while reflecting the complex non-linear interactions. Experimental results show that DRE outperforms the state-of-the-art approaches in the recommendation quality by accurately inferring the new users’ preferences and its seed itemset better represents the latent space than the seed itemset obtained by the other methods.
Year
DOI
Venue
2020
10.1145/3366423.3380042
WWW '20: The Web Conference 2020 Taipei Taiwan April, 2020
Keywords
DocType
ISBN
Recommender System, Initial Recommendation, Cold Start
Conference
978-1-4503-7023-3
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Wonbin Kweon142.48
SeongKu Kang2214.55
Junyoung Hwang3163.42
Hwanjo Yu41715114.02