TY  - CHAP
SN  - 978-1-4244-5331-3 
AV  - none
N2  - Recommender systems usually propose items to single users. However, in some domains like Mobile IPTV or Satellite Systems it might be impossible to generate a program schedule for each user, because of bandwidth limitations. A few approaches were proposed to generate group recommendations. However, these approaches take into account that groups of users already exist and no recommender system is able to detect intrinsic users communities. This paper describes an algorithm that detects groups of users whose preferences are similar and predicts recommendations for such groups. Groups of different granularities are generated through a modularity-based Community Detection algorithm, making it possible for a content provider to explore the trade off between the level of personalization of the recommendations and the number of channels. Experimental results show that the quality of group recommendations increases linearly with the number of groups created.
TI  - Group Recommendation with Automatic Identification of Users Communities
SP  - 547
EP  - 550
ID  - eprints1888
PB  - IEEE
Y1  - 2009///
UR  - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5285024&isnumber=5284931
M1  - 3
A1  - Boratto, Ludovico
A1  - Carta, Salvatore
A1  - Chessa, Alessandro
A1  - Agelli, Maurizio
A1  - Clemente, M. Laura
KW  - collaborative filtering; community detection; recommender systems
T2  - Proceedings of the IEEE/WIC/ACM International Joint Conferences on eb Intelligence and Intelligent Agent Technologies, 2009. WI-IAT '09.
ER  -