Title
Deep hybrid recommender systems via exploiting document context and statistics of items.
Abstract
The sparsity of user-to-item rating data is one of the major obstacles to achieving high rating prediction accuracy of model-based collaborative filtering (CF) recommender systems. To overcome the obstacle, researchers proposed hybrid methods for recommender systems that exploit auxiliary information together with rating data. In particular, document modeling-based hybrid methods were recently proposed that additionally utilize description documents of items such as reviews, abstracts, or synopses in order to improve the rating prediction accuracy. However, they still have two following limitations on further improvements: (1) They ignore contextual information such as word order or surrounding words of a word because their document modeling methods use bag-of-words model. (2) They do not explicitly consider Gaussian noise differently in modeling latent factors of items based on description documents together with ratings although Gaussian noise depend on statistics of items.
Year
DOI
Venue
2017
10.1016/j.ins.2017.06.026
Information Sciences
Keywords
Field
DocType
Collaborative filtering,Document modeling,Deep learning,Contextual information,Gaussian noise,Item statistics
Data mining,Convolutional neural network,Computer science,Artificial intelligence,Deep learning,Recommender system,Obstacle,Word order,Collaborative filtering,Exploit,Statistics,Gaussian noise,Machine learning
Journal
Volume
Issue
ISSN
417
C
0020-0255
Citations 
PageRank 
References 
18
0.58
20
Authors
4
Name
Order
Citations
PageRank
Dong Hyun Kim11647.55
Chanyoung Park216312.04
Jinoh Oh330315.32
Hwanjo Yu41715114.02