I am a Research Scientist at Equmenopolis, Inc. and a Guest Research Associate Professor at Perceptual Computing Laboratory at Waseda University.
My research focuses on the use of Artificial Intelligence (AI) in second language speech and writing. Particularly, in recent studies, I explore how conversational AI agents can help augment assessment of Interactional Competence, the ability to co-construct oral interactions. I combine both conversation analysis and psychometric methods to tease apart what AI can (or cannot) assess about human interaction. Alongside, I also work on the use of generative AI and other NLP tools in measuring and assessing second language vocabulary, grammar, and discourse features.
At Equmenopolis, Inc. I oversee validation research of AI-mediated L2 oral proficiency assessment, using Intelligent Language Learning Assistant (InteLLA).
At Waseda University, I supervise (or have supervised) engineering BA, MA, and Ph.D. students, whose work combines Natural Language Processing and Language Assessment.
Positions
Waseda University | Guest Research Associate Professor | 2026 - Present
Equmenopolis, Inc. | Research Scientist | 2025 - Present
Waseda University | Guest Research Assistant Professor | 2025 - 2026
Waseda University | Research Assistant Professor | 2023 - 2025
Education
University of Oregon | Eugene, Oregon, USA | Ph.D. in Linguistics | Sept 2019 - June 2023
Waseda University | Shinjuku, Tokyo, Japan | M.A. in Education | April 2015 - March 2018