Prof. Dr. Ye is now a full professor in the school of information management at Nanjing University. His research interest focuses on the scientific metrics. He has published about 100 articles in peer-reviewed journals, 3 monographs and 3 textbooks. Prof. Ye is a Fellow of European Academy of Sciences and Arts, a life-long member of ISSI (International Society for Scientometrics and Informetrics) and the member of the Editorial Committees of Journal of Informetrics, Journal of Data and Information Science and so on. During Sept. 2000 to Sept. 2001, Dr. Ye was a Fulbright research scholar in the University of Arizona and the University of Michigan in USA.