His major research is in the mathematical theory and algorithms for data science and analytics. This includes areas of artificial intelligence, machine learning, data mining, latent component analysis, multidimensional signal and image processing. He has an extensive portfolio of relevant research supported by a variety of funding agencies. He has published over 450 papers on these topics on various journals and international conference proceedings. He serves as Associate Editor to several international signal processing journals including IET Signal Processing, Journal of Acoustics, Journal of Electrical and Computer Engineering. He actively participate in international conferences and workshops, and serves on their organizing and technical committees. He is a Fellow of the Institution Engineering Technology (IET) and Institution of Electrical and Electronic Engineering (IEEE). Prof Woo has delivered more than 20 keynote addresses in Singapore, China, Malaysia, Indonesia, Ireland, Latvia, Portugal, Spain and the United Kingdom. He provides expert evaluation to several funding bodies in the UK, the EU (Horizon2020) and North America.