Prof. Tsoi was the Dean of Faculty of Information Technology of The Macau University of Science and Technology. He was a pioneering scholar and researcher in the area of Artificial Neural Networks. His research achievements lied mainly in the development of theories and the practical applications of artificial intelligence, including neural network techniques. Prof. Tsoi was a Director of the Board of the Outstanding PolyU Alumni Association during 2012 to 2016. He retired in mid-2016, now an Emeritus Professor, University of Wollongong, Australia, and is now residing in Brisbane.