%0 Journal Article %J Expert Systems with Applications %D 2012 %T Identifying valuable customers on social network sites for profit maximization %A Xu,Kaiquan %A Li,Jiexun %A Song,Yuxia %K BIS %B Expert Systems with Applications %V 39 %P 13009-13018 %8 2012 %G eng %N 17 %2 a %4 86816428032 %$ 86816428032