Since 08/2021 Chair Professor, National Taiwan Normal University, Taiwan
02/2018~07/2021 Fengtai Chair Professor, National Yuntech University of Science & Technology, Taiwan.
08/2017-07/2022 Visiting Scholar, the College of Information, University of North Texas, USA.
06/2016-05/2019 Adjunct Professor, the Griffith Institute for Educational Research, Griffith University, Australia
08/2015-07/2019 Chair Professor, National Sun Yat-sen University, Taiwan.
08/2012-07/2015 Chair Professor, National Sun Yat-sen University, Taiwan.
01/2010-12/2012 Distinguished Professor, National Sun Yat-sen University, Taiwan.
08/1996-08/2009 Professor, Department of Information Management, National Sun Yat-sen University, Taiwan.
01/2012-12/2016 Chair, IEEE Technical Committee on Learning Technology.
01/2012-02/2019 Chair, Research Center For Cognition And Gesture-Based Computing, National Sun Yat-sen University, Taiwan.
12/2008-12/2014 Director, Taiwan Network Information Center, Taiwan