The Validity of Ultra-Short-Term Heart Rate Variability during Cycling Exercise. - Yukiya Tanoue; Shihoko Nakashima; Tomohiro Komatsu; Miki Kosugi; Saki Kawakami; Shotaro Kawakami; Ryoma Michishita; Yasuki Higaki; Yoshinari Uehara (Sensors, 2023)

Remarks on System Identification Using a Quaternion-valued Neural Network with Application to Optimal Predictive Control. - Kazuhiko Takahashi; Ayane Fujimoto; Saki Kawakami; Hinako Mitera; Masafumi Hashimoto (ISPACS, 2024)