Dr. Hongwei Wang (David H.W. Wang) was a visiting scholar in the AI Lab at the MIS department of the University of Arizona. He received the Ph.D. in Management Science from Shanghai Jiaotong University (SJTU) in 2004. His research interests include web mining, business intelligence, information systems, ontology modelling, e-commerce, social network service, and their interdisciplinary areas. He is presently an associate professor in the School of Economics and Management at Tongji University, China.