In 2004, he became an Assistant Professor at the University of Iowa, Iowa City. He is currently with the Department of Computer Science and Engineering, Pohang University of Science and Technology, Pohang, Korea. He is an Associate Editor of Neurocomputing and served on the National Science Foundation (NSF) panel in 2006. His current research interests include data mining, database, information systems, machine learning, support vector machines, and bioinformatics.,Dr. Yu was the recipient of two International Business Machines Corporation (IBM) Research Student Scholarship Awards in 2002 and 2003, the Association for the Advancement of Artificial Intelligence (AAAI) Student Scholarship Award in 2003, the Conference on Information and Knowledge Management (CIKM) Student Scholarship Award in 2003, and the UIUC Data Mining Research Gold Award in 2003. He has served on the program committees of the IEEE International Conference on Data Mining (ICDM), the Association for Computing Machinery (ACM) CIKM, and the Society for Industrial and Applied Mathematics (SIAM) Data Mining.