Dewen, Cui, Matsufuji Akihiro, Liu Yi, Eri Sato- Shimokawa, and Toru Yamaguchi. 2022. “Estimation of Confidence in the Dialogue Based on Eye Gaze and Head Movement Information”. EMITTER International Journal of Engineering Technology 10 (2), 338-50. https://doi.org/10.24003/emitter.v10i2.756.