Dr. Yaxin Bi is a Reader in School of Computing at Ulster University. His principal research interests include multiple supervised and unsupervised machine learning-based classification systems and ensemble methods in conjunction with the Dempter-Shafer (DS) theory of evidence; data analytics and decision making with uncertainty methods for satellite data exploitation with an emphasis on anomaly/change detection; and sentiment analytics for opinion mining. He has recently conducted a series of studies in using sentiment analytics to analyse student emotional engagement. Yaxin has more than 170 peer-reviewed publications in international journals and conferences. He has served for a number of international conferences as general chair, program chair and program committee member, he also is an associate editor for International Journal of Intelligence Systems as well as a steering committee member for the series of International Conference on Knowledge Science, Engineering and management (KSEM).