Learning to recommend with social contextual information from implicit feedback

Verfasser / Beitragende:
[Lei Guo, Jun Ma, Zhumin Chen, Huan Zhong]
Ort, Verlag, Jahr:
2015
Enthalten in:
Soft Computing, 19/5(2015-05-01), 1351-1362
Format:
Artikel (online)
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024 7 0 |a 10.1007/s00500-014-1347-0  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00500-014-1347-0 
245 0 0 |a Learning to recommend with social contextual information from implicit feedback  |h [Elektronische Daten]  |c [Lei Guo, Jun Ma, Zhumin Chen, Huan Zhong] 
520 3 |a Recommender systems with social networks have been well studied in recent years. However, most of these methods ignore the social contextual information among users and items, which is significant and useful for predicting users' preferences in many recommendation problems. Moreover, most existing social recommendation methods have been proposed for the scenarios where users can provide explicit ratings. But in fact, the explicit feedback is not always available, most of the feedback in real social networks is not explicit but implicit. Motivated by above observations, we propose a unified ranking framework fusing social contextual information and common social relations for implicit feedback. Specifically, we first extend the user latent features by the implicit interest deduced from social context, and then we integrate the common social relations as factorization terms to further improve recommendation quality. Finally, we optimize our model in a Bayesian personalized ranking framework. The experiments on real-world dataset show that our approach outperforms the other state-of-the-art algorithms in terms of AUC, NDCG and Pre@3. This result demonstrates the importance of social context and common social relations for the formation of the implicit ratings. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Recommender system  |2 nationallicence 
690 7 |a Social context  |2 nationallicence 
690 7 |a Implicit feedback  |2 nationallicence 
690 7 |a Social recommendation  |2 nationallicence 
690 7 |a Bayesian personalized ranking  |2 nationallicence 
700 1 |a Guo  |D Lei  |u School of Computer Science and Technology, Shandong University, Jinan, China  |4 aut 
700 1 |a Ma  |D Jun  |u School of Computer Science and Technology, Shandong University, Jinan, China  |4 aut 
700 1 |a Chen  |D Zhumin  |u School of Computer Science and Technology, Shandong University, Jinan, China  |4 aut 
700 1 |a Zhong  |D Huan  |u School of Computer Science and Technology, Shandong University, Jinan, China  |4 aut 
773 0 |t Soft Computing  |d Springer Berlin Heidelberg  |g 19/5(2015-05-01), 1351-1362  |x 1432-7643  |q 19:5<1351  |1 2015  |2 19  |o 500 
856 4 0 |u https://doi.org/10.1007/s00500-014-1347-0  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00500-014-1347-0  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Guo  |D Lei  |u School of Computer Science and Technology, Shandong University, Jinan, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ma  |D Jun  |u School of Computer Science and Technology, Shandong University, Jinan, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chen  |D Zhumin  |u School of Computer Science and Technology, Shandong University, Jinan, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhong  |D Huan  |u School of Computer Science and Technology, Shandong University, Jinan, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Soft Computing  |d Springer Berlin Heidelberg  |g 19/5(2015-05-01), 1351-1362  |x 1432-7643  |q 19:5<1351  |1 2015  |2 19  |o 500