2017/08/01, 2020/07/31, Beijing Jiaotong University, Department of Computer Science, Visiting Professor
2008/09/01, 2011/08/31, Xi'an Jiaotong University, School of Software, Visiting Professor
2003/08/01, 2006/07/31, Shanghai University, Department of Computer Science, Visiting Professor
2003/08/01, 2006/07/31, Shanghai Jiaotong University, School of Software, Adjunct Professor
2005/04/01, 2006/03/31, University of York (UK), Department of Computer Science, Visiting Professor
1998/12/01, 1999/02/28, University of Oxford (UK), Department of Computer Science, Visiting Professor
1994/12/01, 1995/02/28, The Queen's University of Belfast (Northern Ireland, UK), Department of Computer Science, Research Fellow
2020/04/01, Hiroshima University, Graduate School of Advanced Science and Engineering, School of Informatics and Data Science, Professor
2001/04/01, 2020/03/31, Hosei University, Department of Computer Science, Faculty of Information Sciences, Professor
2000/04/01, 2001/03/31, Hosei University, Department of Computer Science, Faculty of Information Sciences, Associate Professor
1994/04/01, 2000/03/31, Hiroshima City University, Department of Computer Science, Associate Professor
1993/05/21, 1994/03/01, RHBNC, University of London (UK), Department of Computer Science, Research Assistant
1991/02/01, 1993/05/20, University of York (UK), Department of Computer Science, Research Associate
1987/10/01, 1989/01/01, Xi'an Jiaotong University, Department of Computer Science, Lecturer
1982/02/01, 1987/09/01, Xi'an Jiaotong University, Department of Computer Science, Assistant Lecturer