School of Computer Science and Technology;
Harbin Institute of Technology;
Weihai;
264209;
China;
College of Information Engineering;
Sanming University;
365004;
Sanming;
China;
Fujian Province University Key Lab for Industry Big Data Analysis and Application;
Fujian;
China;
College of Information Engineering;
Qingdao Binhai University;
Qingdao;
China;
Jiangsu Province Wireless Sensing System Application Engneering Technology Research and Development Centre;
China;
School of Engineering;
Manukau Institute of Technology;
Auckland;
2241;
New Zealand;
User profiles; multi-source; multi-task learning; social network;