He received his Ph.D. in Computer Science and Information Engineering from National Cheng Kung University in Taiwan, R.O.C. From 2007 to 2008, he was a visiting scholar at the Natural Language Group, Information Sciences Institute, University of Southern California (USC/ISI). He is currently Board Member of the Association for Computational Linguistics and Chinese Language Processing (ACLCLP), and serves as an editorial board member of International Journal of Computational Linguistics and Chinese Language Processing. His research interests include natural language processing, sentiment analysis, text mining, and learning technology. His team has developed systems that ranked first in IJCNLP 2017 Task 4: Customer Feedback Analysis, and second in the recent SemEval and BEA shared task competitions.