From 65438 to 0999-2003, he served as Charles Magritham Distinguished Professor of Information Technology, Head of Department and Director of Data Mining Laboratory in College of Information Science and Technology, Nebraska State University. 1996- 1998 was an associate professor in the school of information science and technology of Nebraska state university, and1991-kloc-0/996 was an assistant professor in the school of management of Nebraska state university. 1982 obtained a bachelor's degree in mathematics from China Southwest Petroleum Institute, 19 1 studied at China Science and Technology Management Training Center (Dalian University of Technology) and obtained a doctorate in management science and computer system from the University of Kansas, USA.