· 1984 BSc in Mathematics, Shanxi University, China.
· 1991 MSc in Applied Mathematics, Xidian University, China.
· 1994 PhD in Information Processing, Xidian University, China.
· 2009- Professor, University of Essex, UK.
· 1994 - 1997 Postdoc, Associate Professor, National University of Defence Science and Technology, China.
· 1996 - 1997 Research Associate, Hong Kong Polytechnic University, Hong Kong.
· 1997 - 1999 Postdoc, AiS, German National Research Centre for Information Technology (now Fraunhofer Institute AiS), St Augustin, Germany.
· 1999 - 2000 Research Associate, UMIST (now The University of Manchester), Manchester, UK.
· 2000 – 2009 Lecturer, Senior Lecturer, Reader, University of Essex, UK.