Brief Biographical History: 2020 – Present Assistant Professor, College of Information Science and Engineering, Ritsumeikan University, Japan. 2019 – 2020 Postdoctoral Associate, College of Information Science and Engineering, Ritsumeikan University, Japan. 2016 – 2019 Doctoral Student at Graduate School of Information Science and Engineering, Ritsumeikan University, Japan. 2014 – 2016 Master's Student at Graduate School of Information Science and Engineering, Ritsumeikan University, Japan. 2012 – 2014 Engineer at (The) One of Them, Inc, Japan. 2010 – 2012 Undergraduate Student at College of Information Science and Engineering, Ritsumeikan University, Japan. 2007 – 2010 Undergraduate Student at School of Information and Communication Technology, Hanoi University of Science and Technology, Hanoi, Vietnam. Main Works: D.T. Tran, H. Yamazoe, J.-H. Lee,「Multi-Scale Affined-HOF and Dimension Selection for View-Unconstrained Action Recognition」, Applied Intelligence, Springer, Vol. 50, Issue 5, Pages 1468–1486, 2020. D.T. Tran, R. Sakurai, H. Yamazoe, J.-H. Lee,「Phase Segmentation Methods for an Automatic Surgical Workflow Analysis」, International Journal of Biomedical Imaging, Vol. 2017, Article ID 1985796, 17 Pages, 2017.