Keisuke Sakaguchi is a research scientist at Allen Institute for AI (AI2). His research interests are in natural language processing, with a focus on commonsense knowledge acquisition and reasoning, designiing robust algorithms for noisy texts, building reliable resource and evaluation framework, and NLP for educational applications. Keisuke received his Ph.D. from Johns Hopkins University. His work has received the best paper award at AAAI 2020, and an outstanding paper award at ACL 2017.