A Neural Network Model Based on BP Learning with Stochastic Resonance. - Nobuyuki Matsui; Koichi Fujiwara; Teijiro Isokawa (ICONIP, 1998)

Heart rate variability features for epilepsy seizure prediction. - Hirotsugu Hashimoto; Koichi Fujiwara; Yoko Suzuki; Miho Miyajima; Toshitaka Yamakawa; Manabu Kano; Taketoshi Maehara; Katsuya Ohta; Tetsuo Sasano; Masato Matsuura; Eisuke Matsushima (APSIPA, 2013)

Development of a wearable HRV telemetry system to be operated by non-experts in daily life. - Toshitaka Yamakawa; Koichi Fujiwara; Manabu Kano; Miho Miyajima; Yoko Suzuki; Taketoshi Maehara; Katsuya Ohta; Tetsuo Sasano; Masato Matsuura; Eisuke Matsushima (APSIPA, 2013)

Efficient input variable selection for calibration model design. - Koichi Fujiwara; Manabu Kano (ASCC, 2013)

A floorplan-aware high-level synthesis algorithm for multiplexer reduction targeting FPGA designs. - Koichi Fujiwara; Shin-ya Abe; Kazushi Kawamura; Masao Yanagisawa; Nozomu Togawa (APCCAS, 2014)

Development of drowsy driving accident prediction by heart rate variability analysis. - Erika Abe; Koichi Fujiwara; Toshihiro Hiraoka; Toshitaka Yamakawa; Manabu Kano (APSIPA, 2014)

Epileptic seizure monitoring by One-Class Support Vector Machine. - Koichi Fujiwara; Erika Abe; Yoko Suzuki; Miho Miyajima; Toshitaka Yamakawa; Manabu Kano; Taketoshi Maehara; Katsuya Ohta; Tetsuo Sasano (APSIPA, 2014)

Real-time heart rate variability monitoring employing a wearable telemeter and a smartphone. - Toshitaka Yamakawa; Koichi Fujiwara; Miho Miyajima; Erika Abe; Manabu Kano; Yuichi Ueda (APSIPA, 2014)

Heart rate monitoring by a pulse sensor embedded game controller. - Erika Abe; Hiroshi Chigira; Koichi Fujiwara; Toshitaka Yamakawa; Manabu Kano (APSIPA, 2015)

Development of stroke detection method by heart rate variability analysis and support vector machine. - Keisuke Kamata; Koichi Fujiwara; Tomonobu Kodama; Manabu Kano; Toshitaka Yamakawa; Norikata Kobayashi; Fuminori Shimizu (APSIPA, 2015)

Accuracy comparison between two microcontroller-embedded R-wave detection methods for heart-rate variability analysis. - Toshitaka Yamakawa; Ryunosuke Kinoshita; Koichi Fujiwara; Manabu Kano; Miho Miyajima; Tadashi Sakata; Yuichi Ueda (APSIPA, 2015)

Calibration model design based on weighted nearest correlation spectral clustering. - Koichi Fujiwara; Manabu Kano (ASCC, 2015)

Efficient wavenumber selection based on nearest correlation Louvain method for NIR calibration modeling. - Taku Uchimaru; Koji Hazama; Koichi Fujiwara; Manabu Kano (ASCC, 2015)

Clock skew estimate modeling for FPGA high-level synthesis and its application. - Koichi Fujiwara; Kazushi Kawamura; Masao Yanagisawa; Nozomu Togawa (ASICON, 2015)

Development of sleep apnea syndrome screening algorithm by using heart rate variability analysis and support vector machine. - Chikao Nakayama; Koichi Fujiwara; Masahiro Matsuo; Manabu Kano; Hiroshi Kadotani (EMBC, 2015)

A Floorplan-Driven High-Level Synthesis Algorithm for Multiplexer Reduction Targeting FPGA Designs. - Koichi Fujiwara; Kazushi Kawamura; Shin-ya Abe; Masao Yanagisawa; Nozomu Togawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015)

Canine emotional states assessment with heart rate variability. - Eri Nakahara; Yuki Maruno; Takatomi Kubo; Rina Ouchi; Maki Katayama; Koichi Fujiwara; Miho Nagasawa; Takefumi Kikusui; Kazushi Ikeda (APSIPA, 2016)

Missing RRI interpolation for HRV analysis using locally-weighted partial least squares regression. - Keisuke Kamata; Koichi Fujiwara; Toshiki Yamakawa; Manabu Kano (EMBC, 2016)

Development of Photoplethysmogram sensor-embedded video game controller. - Erika Abe; Koichi Fujiwara; Manabu Kano; Hiroshi Chigira; Toshitaka Yamakawa (ICCE, 2016)

Interconnection-Delay and Clock-Skew Estimate Modelings for Floorplan-Driven High-Level Synthesis Targeting FPGA Designs. - Koichi Fujiwara; Kazushi Kawamura; Masao Yanagisawa; Nozomu Togawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016)

Epileptic Seizure Prediction Based on Multivariate Statistical Process Control of Heart Rate Variability Features. - Koichi Fujiwara; Miho Miyajima; Toshitaka Yamakawa; Erika Abe; Yoko Suzuki; Yuriko Sawada; Manabu Kano; Taketoshi Maehara; Katsuya Ohta; Taeko Sasai-Sakuma; Tetsuo Sasano; Masato Matsuura; et al. (IEEE Trans. Biomed. Eng., 2016)

Causal analysis based on non-time-series kernel Granger causality in a steelmaking process. - Ryosuke Sato 004; Koichi Fujiwara; Masahiro Tani; Junichi Mori; Junji Ise; Kohhei Harada; Manabu Kano (ASCC, 2017)

Design of focal brain cooling system for suppressing epileptic seizures. - Kei Hata; Koichi Fujiwara; Manabu Kano; Takao Inoue; Sadahiro Nomura; Hirochika Imoto; Michiyasu Suzuki (EMBC, 2017)

A new infarction detection method based on heart rate variability in rat middle cerebral artery occlusion model. - Tomonobu Kodata; Keisuke Kamata; Koichi Fujiwara; Manabu Kano; Toshiki Yamakawa; Ichiro Yuki; Yuichi Murayama (EMBC, 2017)

Development of correlation-based process characteristics visualization method and its application to fault detection. - Koichi Fujiwara; Manabu Kano (ICCA, 2017)

Analysis of VNS Effect on EEG Connectivity with Granger Causality and Graph Theory. - Tsuyoshi Uchida; Koichi Fujiwara; Takao Inoue; Yuichi Maruta; Manabu Kano; Michiyasu Suzuki (APSIPA, 2018)

Deniosing Autoencoder-based Modification of RRI data with Premature Ventricular Contraction for Precise Heart Rate Variability Analysis. - Shota Miyatani; Koichi Fujiwara; Manabu Kano (EMBC, 2018)

Design of false heart rate feedback system for improving game experience. - Sayaka Ogawa; Koichi Fujiwara; Toshitaka Yamakawa; Erika Abe; Manabu Kano (ICCE, 2018)

Missing RRI Interpolation Algorithm based on Locally Weighted Partial Least Squares for Precise Heart Rate Variability Analysis. - Keisuke Kamata; Koichi Fujiwara; Takafumi Kinoshita; Manabu Kano (Sensors, 2018)

Development of a Sleep Apnea Detection Algorithm Using Long Short-Term Memory and Heart Rate Variability. - Ayako Iwasaki; Chikao Nakayama; Koichi Fujiwara; Yukiyoshi Sumi; Masahiro Matsuo; Manabu Kano; Hiroshi Kadotani (EMBC, 2019)

An FPGA Implementation Method based on Distributed-register Architectures. - Koichi Fujiwara; Kazushi Kawamura; Masao Yanagisawa; Nozomu Togawa (IPSJ Trans. Syst. LSI Des. Methodol., 2019)

Heart Rate Variability-Based Driver Drowsiness Detection and Its Validation With EEG. - Koichi Fujiwara; Erika Abe; Keisuke Kamata; Chikao Nakayama; Yoko Suzuki; Toshitaka Yamakawa; Toshihiro Hiraoka; Manabu Kano; Yukiyoshi Sumi; Fumi Masuda; Masahiro Matsuo; Hiroshi Kadotani (IEEE Trans. Biomed. Eng., 2019)

Evaluating Mental State of Drivers in Automated Driving Using Heart Rate Variability towards Feasible Request-to-Intervene. - Felan Carlo C. Garcia; Takatomi Kubo; Chao-Ling Chang; Masafumi Hisada; Takashi Bando; Midori Kato; Masataka Mori; Kazuhito Takenaka; Toshitaka Yamakawa; Koichi Fujiwara; Kazushi Ikeda (SMC, 2020)

Regression and independence based variable importance measure. - Xinmin Zhang; Takuya Wada; Koichi Fujiwara; Manabu Kano (Comput. Chem. Eng., 2020)

Wearable Epileptic Seizure Prediction System with Machine-Learning-Based Anomaly Detection of Heart Rate Variability. - Toshitaka Yamakawa; Miho Miyajima; Koichi Fujiwara; Manabu Kano; Yoko Suzuki; Yutaka Watanabe; Satsuki Watanabe; Tohru Hoshida; Motoki Inaji; Taketoshi Maehara (Sensors, 2020)

Preliminary Study Using Autoencoder for Early Detection of Heat Illness from Heart Rate Variability Obtained with Wearable Device. - Nao Inatsu; Aoi Noguchi; Koshi Ota; Koichi Fujiwara; Takatomi Kubo; Toshitaka Yamakawa (APSIPA ASC, 2021)

Autoencoder-Based Extrasystole Detection and Modification of RRI Data for Precise Heart Rate Variability Analysis. - Koichi Fujiwara; Shota Miyatani; Asuka Goda; Miho Miyajima; Tetsuo Sasano; Manabu Kano (Sensors, 2021)

Development of Game-Like System Using Active Behavior Input for Wakefulness-Keeping Support in Driving. - Tatsuro Ibe; Koichi Fujiwara; Toshihiro Hiraoka; Erika Abe; Toshitaka Yamakawa (IEEE Trans. Intell. Veh., 2021)

Medical checkup data analysis method based on LiNGAM and its application to nonalcoholic fatty liver disease. - Tsuyoshi Uchida; Koichi Fujiwara; Kenichi Nishioji; Masao Kobayashi; Manabu Kano; Yuya Seko; Kanji Yamaguchi; Yoshito Itoh; Hiroshi Kadotani (Artif. Intell. Medicine, 2022)

Editorial: Data science and digital service delivery in healthcare. - Koichi Fujiwara (Frontiers Comput. Sci., 2022)

Soft-Sensor Construction Method Based on Adaptive Modeling and Transfer Learning for Manufacturing Process Including Maintenance Periods. - Kaito Katayama; Koichi Fujiwara; Kazuki Yamamoto (APSIPA ASC, 2023)

Prediction Model of Postoperative Pain Exacerbation Using a Wearable Electrocardiogram Sensor. - Toshiyuki Nakanishi; Koichi Fujiwara; Kazuya Sobue (APSIPA ASC, 2023)

Prediction model of postoperative pain exacerbation using an intravenous patient-controlled analgesia device and a wearable electrocardiogram sensor. - Toshiyuki Nakanishi; Koichi Fujiwara; Kazuya Sobue (EMBC, 2023)

Auditory Feedback of False Heart Rate for Video Game Experience Improvement. - Sayaka Ogawa; Koichi Fujiwara; Manabu Kano (IEEE Trans. Affect. Comput., 2023)

Interactive system for optimal position selection of a patch-type R-R interval telemeter. - Aoi Noguchi; Tomoyuki Takano; Koichi Fujiwara; Miho Miyajima; Toshitaka Yamakawa (Artif. Life Robotics, 2023)

Development of an epileptic seizure prediction algorithm using R-R intervals with self-attentive autoencoder. - Rikumo Ode; Koichi Fujiwara; Miho Miyajima; Toshikata Yamakawa; Manabu Kano; Kazutaka Jin; Nobukazu Nakasato; Yasuko Sawai; Toru Hoshida; Masaki Iwasaki; Yoshiko Murata; Satsuki Watanabe; et al. (Artif. Life Robotics, 2023)

Heart rate variability-based Model for estimating the severity of orthostatic hypotension in patients with REM sleep behavior disorder. - Shota Saeda; Koichi Fujiwara; Yukiyoshi Sumi; Hiroshi Kadotani (EMBC, 2024)

Long-short term memory autoencoder using delta with beta bands of EEG enables highly accurate prediction of seizure outcome in Infantile Epileptic Spasms Syndrome of unknown etiology. - Ryosuke Suzui; Jun Natsume; Tatsuki Saito; Koichi Fujiwara (EMBC, 2024)

Detection of pre-mRNA involved in abnormal splicing using Graph Neural Network and Nearest Correlation Method. - Yuna Tahashi; Rikumo Ode; Koichi Fujiwara; Jun-ichi Takeda; Kinji Ohno (EMBC, 2024)

Heat illness detection with heart rate variability analysis and anomaly detection algorithm. - Koichi Fujiwara; Koshi Ota; Shota Saeda; Toshitaka Yamakawa; Takatomi Kubo; Aozora Yamamoto; Yuki Maruno; Manabu Kano (Biomed. Signal Process. Control., 2024)

Driver Drowsiness Detection Using R-R Interval of Electrocardiogram and Self-Attention Autoencoder. - Koichi Fujiwara; Hiroki Iwamoto; Kentaro Hori; Manabu Kano (IEEE Trans. Intell. Veh., 2024)

Predictive Modeling for Hospital Readmissions for Patients With Heart Disease: An Updated Review From 2012-2023. - Wei Zhang 193; Weihan Cheng; Koichi Fujiwara; Richard Evans 003; Chengyan Zhu (IEEE J. Biomed. Health Informatics, 2024)

Special Issue on Advanced Technologies for Augmenting Canine-Human Communication. - Kazunori Ohno; Miho Nagasawa; Takatomi Kubo; Koichi Fujiwara; Toshitaka Yamakawa; Miiamaaria V. Kujala (Adv. Robotics, 2024)

IoT-Based Atrial Fibrillation Screening System, Development, and Prospective Study. - Koichi Fujiwara; Tetsuma Kawaji; Shota Saeda; Toshitaka Yamakawa; Masashi Kato; Takanori Aizawa; Takafumi Yokomatsu; Shinji Miki (IEEE Internet Things J., 2025)