Hsinchun Chen Daniel Zeng David L. Buckeridge Masoumeh T. Izadi Aman Verma Anna Okhmatovskaia Xiaohua Hu Xiajiong Shen Zhidong Cao Fei-Yue Wang Xiaolong Zheng Quanyi Wang 66-82 2009 24 IEEE Intelligent Systems 6 http://doi.ieeecomputersociety.org/10.1109/MIS.2009.126 db/journals/expert/expert24.html#ChenZBIVOHSCWZW09