Title
Predicting Missing Ratings in Recommender Systems: Adapted Factorization Approach
Abstract
The paper presents a factorization-based approach to make predictions in recommender systems. These systems are widely used in electronic commerce to help customers find products according to their preferences. Taking into account the customer's ratings of some products available in the system, the recommender system tries to predict the ratings the customer would give to other products in the system. The proposed factorization-based approach uses all the information provided to compute the predicted ratings, in the same way as approaches based on Singular Value Decomposition (SVD). The main advantage of this technique versus SVD-based approaches is that it can deal with missing data. It also has a smaller computational cost. Experimental results with public data sets are provided to show that the proposed adapted factorization approach gives better predicted ratings than a widely used SVD-based approach.
Year
DOI
Venue
2009
10.2753/JEC1086-4415140203
Int. J. Electronic Commerce
Keywords
Field
DocType
Factorization technique, recommender systems, singular value decomposition
Recommender system,Data mining,Singular value decomposition,Data set,Economics,Factorization,Artificial intelligence,Missing data,Machine learning
Journal
Volume
Issue
ISSN
14
2
1086-4415
Citations 
PageRank 
References 
5
0.45
11
Authors
5
Name
Order
Citations
PageRank
Carme Julià1586.78
Angel Sappa2162.00
Felipe Lumbreras332828.04
Joan Serrat41262103.04
Antonio López51049.02