Abstract
Collaborative filtering (CF) has been the most popular approach for recommender systems in recent years. In order to analyze the property of a ranking-oriented CF algorithm directly and be able to improve its performance, this paper investigates the ranking-oriented CF from the perspective of loss function. To gain the insight into the popular bias problem, we also study the tendency of a CF algorithm in recommending the most popular items, and show that such popularity tendency can be adjusted through setting different parameters in our models. After analyzing two state-of-the-art algorithms, we propose in this paper two models using the generalized logistic loss function and the hinge loss function, respectively. The experimental results show that the proposed methods outperform the state-of-the-art algorithms on two real data sets.
Original language | English |
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Title of host publication | Database Systems for Advanced Applications |
Editors | Sourav S. BHOWMICK, Curtis E. DYRESON, Christian S. JENSEN, Mong Li LEE, Agus MULIANTARA, Bernhard THALHEIM |
Place of Publication | Switzerland |
Publisher | Springer, Cham |
Pages | 451-465 |
Number of pages | 15 |
Volume | 8421 |
ISBN (Electronic) | 9783319058108 |
ISBN (Print) | 9783319058092 |
DOIs | |
Publication status | Published - 2014 |
Externally published | Yes |
Event | The 19th International Conference on Database Systems for Advanced Applications - Aerowisata Sanur Beach Hotel, Bali, Indonesia Duration: 21 Apr 2014 → 24 Apr 2014 https://www.comp.nus.edu.sg/~dasfaa14/ |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Publisher | Springer-Verlag GmbH and Co. KG |
ISSN (Print) | 0302-9743 |
Conference
Conference | The 19th International Conference on Database Systems for Advanced Applications |
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Abbreviated title | DASFAA 2014 |
Country/Territory | Indonesia |
City | Bali |
Period | 21/04/14 → 24/04/14 |
Internet address |
Keywords
- Collaborative filtering
- loss function
- matrix factorization