Zhijin Wang Yan Yang 0008 Liang He 0001 Junzhong Gu User Identification within a Shared Account: Improving IP-TV Recommender Performance. 219-233 2014 ADBIS https://doi.org/10.1007/978-3-319-10933-6_17 conf/adbis/2014 db/conf/adbis/adbis2014.html#WangYHG14