Title
Opinion-Based Collaborative Filtering to Solve Popularity Bias in Recommender Systems.
Abstract
Existing recommender systems suffer from a popularity bias problem. Popular items are always recommended to users regardless whether they are related to users' preferences. In this paper, we propose an opinion-based collaborative filtering by introducing weighting functions to adjust the influence of popular items. Based on conventional user-based collaborative filtering, the weighting functions are used in measuring users' similarities so that the effect of popular items is decreased with similar opinions and increased with dissimilar ones. Experiments verify the effectiveness of our proposed approach. © 2013 Springer-Verlag.
Year
DOI
Venue
2013
10.1007/978-3-642-40173-2_35
DEXA (2)
Keywords
Field
DocType
collaborative filtering,popularity bias,recommender system
Recommender system,Data mining,Weighting,Collaborative filtering,Computer science,Popularity,Database
Conference
Volume
Issue
ISSN
8056 LNCS
PART 2
16113349
Citations 
PageRank 
References 
8
0.52
9
Authors
3
Name
Order
Citations
PageRank
Xiangyu Zhao1162.73
Zhendong Niu254867.31
Wei Chen3263.24