He received Doctorate degree at Seoul National University as majoring Electrical Engineering in 1998. His main research interests include data evaluation with similarity measure, human signal analysis, high dimensional data analysis, controller design for linear/nonlinear system, and observer design for linear/nonlinear system. Professor Lee had joined as vice president of Korean Convergence Society 2012, and he organized the international conference several times with KCS. And he awarded multiple honors such as outstanding scholar award from KCS and Korean fuzzy society and best paper award. He has published referred over 150 journal papers, and 80 conference papers.