Dr Yuanchang Liu’s research mainly focuses on robotics and autonomous systems (RAS) with a special interest in marine application including surface and underwater marine vehicles. With his expertise in RAS, Dr Yuanchang Liu has undertaken influential research work in sensor fusion, planning and control and machine learning, with original research outputs actively published in leading international journals and conferences. Dr Yuanchang Liu’s research is well supported by various national and international research funding agencies. At present, his research activities mainly include three pillars: 1) deep reinforcement learning powered autonomous navigation system, 2) statistical machine learning in robotics and control and 3) the application of digital twin in metal additive manufacturing.