**About the Editors**

**Wai Lok Woo** is currently a Professor of Machine Learning at Northumbria University, UK. Previously, he was the Director of Research for the Newcastle Research and Innovation Institute and the Director of Operations for Newcastle University, UK, where he received the B.Eng. degree in electrical and electronics engineering and the M.Sc. and Ph.D. degrees in 1993, 1995, and 1998, respectively. His research interests include mathematical development of sensor signal processing and machine learning for anomaly detection, digital health, and digital sustainability. He is Associate Editor of several IEEE journals. He is interested in answering the global question of how the integration of smart sensors and machine learning advances humanity and sustains the ecosystem in the current digital transformation era. His research is funded by the UK Research and Innovation.

**Bin Gao** is currently a Professor at the School of Automation Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, China. He received his B.Sc. degree in communications and signal processing from Southwest Jiao Tong University (2001–2005), China, and received his M.Sc. degree in communications and signal processing with distinction and Ph.D. degree from Newcastle University, UK (2006–2011). He worked as a Research Associate (2011-2013) with Newcastle University on wearable acoustic sensor technology. His research interests include electromagnetic and thermographic sensing, supervised and unsupervised machine learning, wearable sensing, and nondestructive testing and evaluation, and he actively publishes in these areas. He has coordinated several National Natural Science Foundation of China research projects.
