Katsuhiro Sekine received his B.S. degree in Industrial Management and Engineering from Tokyo University of Science, Tokyo, Japan, in 2019. During his career, he visited German Aerospace Center (DLR) as a research trainee and carried out the research on extended arrival management. He is currently a Master’s student at Tokyo University of Science. He is also a research trainee at Air Traffic Management Department of Electronic Navigation Research Institute (ENRI) and National Institute of Maritime, Port and Aviation Technology. His research interests include multi-objective optimization, statistical and machine learning method, modeling and simulation, and their applications in air traffic management.