International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
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Volume 82 - Issue 4 |
Published: November 2013 |
Authors: Himan Abdollahpouri, Adel Rahmani, Alireza Abdollahpouri |
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Himan Abdollahpouri, Adel Rahmani, Alireza Abdollahpouri . Is Always a Hybrid Recommender System Preferable To Single Techniquesh. International Journal of Computer Applications. 82, 4 (November 2013), 42-48. DOI=10.5120/14108-0361
@article{ 10.5120/14108-0361, author = { Himan Abdollahpouri,Adel Rahmani,Alireza Abdollahpouri }, title = { Is Always a Hybrid Recommender System Preferable To Single Techniquesh }, journal = { International Journal of Computer Applications }, year = { 2013 }, volume = { 82 }, number = { 4 }, pages = { 42-48 }, doi = { 10.5120/14108-0361 }, publisher = { Foundation of Computer Science (FCS), NY, USA } }
%0 Journal Article %D 2013 %A Himan Abdollahpouri %A Adel Rahmani %A Alireza Abdollahpouri %T Is Always a Hybrid Recommender System Preferable To Single Techniquesh%T %J International Journal of Computer Applications %V 82 %N 4 %P 42-48 %R 10.5120/14108-0361 %I Foundation of Computer Science (FCS), NY, USA
Collaborative filtering (CF) recommender systems are typically unable to generate adequate recommendations in sparse datasets. Empirical evidence suggests that incorporation of a trust network among the users of a recommender system can significantly help to alleviate this problem. For this reason, some studies have been done on combining CF with trust-enhanced recommender system. In this study, we analyze the switching hybrid recommender system with the CF and trust-enhanced recommender system components from both rating coverage and mean absolute error point of view. Experiments on a dataset from Epinions. com prove that, although the rating coverage of this hybrid method is better than both (CF and trust-enhanced RS), but has lower accuracy than just using trust-enhanced RS. In other words, trust-enhanced RS outperforms the hybrid recommender system consisting of CF and trust-enhanced RS. Finally, we justify this result using analytical method.