He received the PhD degree in computer science from School of Computing, National University of Singapore in 2003. His research is in the area of Software Engineering, in particular, empirical software engineering, software quality, software maintenance, and software reuse. He has published more than 70 research papers in international journals and conferences, including TSE, TOSEM, IEEE Software, ICSE, FSE, ASE, CIKM, ICSM, ECOOP, RE, ESEM, WCRE, and MSR. He also served as a PC member and an invited reviewer for many international conferences and journals. He is a member of IEEE and ACM. More information about him can be found at: https://sites.google.com/site/hongyujohn