Koichi Fujiwara

55 papers B 2C 2Journal 20Unranked 31

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC). APSIPA Tatsuya Hasegawa, Toshiyuki Nakanishi, Koichi Fujiwara
2025	J	`jnl`	IoT-Based Atrial Fibrillation Screening System, Development, and Prospective Study. IEEE Internet Things J. Koichi Fujiwara, Tetsuma Kawaji, Shota Saeda, Toshitaka Yamakawa, Masashi Kato, Takanori Aizawa, Takafumi Yokomatsu, Shinji Miki
2024	—	`conf`	Detection of pre-mRNA involved in abnormal splicing using Graph Neural Network and Nearest Correlation Method. EMBC Yuna Tahashi, Rikumo Ode, Koichi Fujiwara, Jun-ichi Takeda, Kinji Ohno
2024	J	`jnl`	Driver Drowsiness Detection Using R-R Interval of Electrocardiogram and Self-Attention Autoencoder. IEEE Trans. Intell. Veh. Koichi Fujiwara, Hiroki Iwamoto, Kentaro Hori, Manabu Kano
2024	—	`conf`	Heart rate variability-based Model for estimating the severity of orthostatic hypotension in patients with REM sleep behavior disorder. EMBC Shota Saeda, Koichi Fujiwara, Yukiyoshi Sumi, Hiroshi Kadotani
2024	J	`jnl`	Heat illness detection with heart rate variability analysis and anomaly detection algorithm. Biomed. Signal Process. Control. Koichi Fujiwara, Koshi Ota, Shota Saeda, Toshitaka Yamakawa, Takatomi Kubo, Aozora Yamamoto, Yuki Maruno, Manabu Kano
2024	—	`conf`	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. EMBC Ryosuke Suzui, Jun Natsume, Tatsuki Saito, Koichi Fujiwara
2024	J	`jnl`	Predictive Modeling for Hospital Readmissions for Patients With Heart Disease: An Updated Review From 2012-2023. IEEE J. Biomed. Health Informatics Wei Zhang, Weihan Cheng, Koichi Fujiwara, Richard Evans, Chengyan Zhu
2024	J	`jnl`	Special Issue on Advanced Technologies for Augmenting Canine-Human Communication. Adv. Robotics Kazunori Ohno, Miho Nagasawa, Takatomi Kubo, Koichi Fujiwara, Toshitaka Yamakawa, Miiamaaria V. Kujala
2023	J	`jnl`	Auditory Feedback of False Heart Rate for Video Game Experience Improvement. IEEE Trans. Affect. Comput. Sayaka Ogawa, Koichi Fujiwara, Manabu Kano
2023	J	`jnl`	Development of an epileptic seizure prediction algorithm using R-R intervals with self-attentive autoencoder. Artif. Life Robotics Rikumo Ode, Koichi Fujiwara, Miho Miyajima, Toshikata Yamakawa, Manabu Kano, Kazutaka Jin, Nobukazu Nakasato, Yasuko Sawai, Toru Hoshida, Masaki Iwasaki, Yoshiko Murata, Satsuki Watanabe, Yutaka Watanabe, Yoko Suzuki, Motoki Inaji, Naoto Kunii, Satoru Oshino, Hui Ming Khoo, Haruhiko Kishima, Taketoshi Maehara
2023	J	`jnl`	Interactive system for optimal position selection of a patch-type R-R interval telemeter. Artif. Life Robotics Aoi Noguchi, Tomoyuki Takano, Koichi Fujiwara, Miho Miyajima, Toshitaka Yamakawa
2023	—	`conf`	Prediction Model of Postoperative Pain Exacerbation Using a Wearable Electrocardiogram Sensor. APSIPA ASC Toshiyuki Nakanishi, Koichi Fujiwara, Kazuya Sobue
2023	—	`conf`	Prediction model of postoperative pain exacerbation using an intravenous patient-controlled analgesia device and a wearable electrocardiogram sensor. EMBC Toshiyuki Nakanishi, Koichi Fujiwara, Kazuya Sobue
2023	—	`conf`	Soft-Sensor Construction Method Based on Adaptive Modeling and Transfer Learning for Manufacturing Process Including Maintenance Periods. APSIPA ASC Kaito Katayama, Koichi Fujiwara, Kazuki Yamamoto
2022	J	`jnl`	Editorial: Data science and digital service delivery in healthcare. Frontiers Comput. Sci. Koichi Fujiwara
2022	J	`jnl`	Medical checkup data analysis method based on LiNGAM and its application to nonalcoholic fatty liver disease. Artif. Intell. Medicine Tsuyoshi Uchida, Koichi Fujiwara, Kenichi Nishioji, Masao Kobayashi, Manabu Kano, Yuya Seko, Kanji Yamaguchi, Yoshito Itoh, Hiroshi Kadotani
2021	J	`jnl`	Autoencoder-Based Extrasystole Detection and Modification of RRI Data for Precise Heart Rate Variability Analysis. Sensors Koichi Fujiwara, Shota Miyatani, Asuka Goda, Miho Miyajima, Tetsuo Sasano, Manabu Kano
2021	J	`jnl`	Development of Game-Like System Using Active Behavior Input for Wakefulness-Keeping Support in Driving. IEEE Trans. Intell. Veh. Tatsuro Ibe, Koichi Fujiwara, Toshihiro Hiraoka, Erika Abe, Toshitaka Yamakawa
2021	—	`conf`	Preliminary Study Using Autoencoder for Early Detection of Heat Illness from Heart Rate Variability Obtained with Wearable Device. APSIPA ASC Nao Inatsu, Aoi Noguchi, Koshi Ota, Koichi Fujiwara, Takatomi Kubo, Toshitaka Yamakawa
2020	B	`conf`	Evaluating Mental State of Drivers in Automated Driving Using Heart Rate Variability towards Feasible Request-to-Intervene. SMC 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
2020	J	`jnl`	Regression and independence based variable importance measure. Comput. Chem. Eng. Xinmin Zhang, Takuya Wada, Koichi Fujiwara, Manabu Kano
2020	J	`jnl`	Wearable Epileptic Seizure Prediction System with Machine-Learning-Based Anomaly Detection of Heart Rate Variability. Sensors Toshitaka Yamakawa, Miho Miyajima, Koichi Fujiwara, Manabu Kano, Yoko Suzuki, Yutaka Watanabe, Satsuki Watanabe, Tohru Hoshida, Motoki Inaji, Taketoshi Maehara
2019	J	`jnl`	An FPGA Implementation Method based on Distributed-register Architectures. IPSJ Trans. Syst. LSI Des. Methodol. Koichi Fujiwara, Kazushi Kawamura, Masao Yanagisawa, Nozomu Togawa
2019	—	`conf`	Development of a Sleep Apnea Detection Algorithm Using Long Short-Term Memory and Heart Rate Variability. EMBC Ayako Iwasaki, Chikao Nakayama, Koichi Fujiwara, Yukiyoshi Sumi, Masahiro Matsuo, Manabu Kano, Hiroshi Kadotani
2019	J	`jnl`	Heart Rate Variability-Based Driver Drowsiness Detection and Its Validation With EEG. IEEE Trans. Biomed. Eng. Koichi Fujiwara, Erika Abe, Keisuke Kamata, Chikao Nakayama, Yoko Suzuki, Toshitaka Yamakawa, Toshihiro Hiraoka, Manabu Kano, Yukiyoshi Sumi, Fumi Masuda, Masahiro Matsuo, Hiroshi Kadotani
2018	—	`conf`	Analysis of VNS Effect on EEG Connectivity with Granger Causality and Graph Theory. APSIPA Tsuyoshi Uchida, Koichi Fujiwara, Takao Inoue, Yuichi Maruta, Manabu Kano, Michiyasu Suzuki
2018	—	`conf`	Deniosing Autoencoder-based Modification of RRI data with Premature Ventricular Contraction for Precise Heart Rate Variability Analysis. EMBC Shota Miyatani, Koichi Fujiwara, Manabu Kano
2018	C	`conf`	Design of false heart rate feedback system for improving game experience. ICCE Sayaka Ogawa, Koichi Fujiwara, Toshitaka Yamakawa, Erika Abe, Manabu Kano
2018	J	`jnl`	Missing RRI Interpolation Algorithm based on Locally Weighted Partial Least Squares for Precise Heart Rate Variability Analysis. Sensors Keisuke Kamata, Koichi Fujiwara, Takafumi Kinoshita, Manabu Kano
2017	—	`conf`	A new infarction detection method based on heart rate variability in rat middle cerebral artery occlusion model. EMBC Tomonobu Kodata, Keisuke Kamata, Koichi Fujiwara, Manabu Kano, Toshiki Yamakawa, Ichiro Yuki, Yuichi Murayama
2017	—	`conf`	Causal analysis based on non-time-series kernel Granger causality in a steelmaking process. ASCC Ryosuke Sato, Koichi Fujiwara, Masahiro Tani, Junichi Mori, Junji Ise, Kohhei Harada, Manabu Kano
2017	—	`conf`	Design of focal brain cooling system for suppressing epileptic seizures. EMBC Kei Hata, Koichi Fujiwara, Manabu Kano, Takao Inoue, Sadahiro Nomura, Hirochika Imoto, Michiyasu Suzuki
2017	—	`conf`	Development of correlation-based process characteristics visualization method and its application to fault detection. ICCA Koichi Fujiwara, Manabu Kano
2016	—	`conf`	Canine emotional states assessment with heart rate variability. APSIPA Eri Nakahara, Yuki Maruno, Takatomi Kubo, Rina Ouchi, Maki Katayama, Koichi Fujiwara, Miho Nagasawa, Takefumi Kikusui, Kazushi Ikeda
2016	C	`conf`	Development of Photoplethysmogram sensor-embedded video game controller. ICCE Erika Abe, Koichi Fujiwara, Manabu Kano, Hiroshi Chigira, Toshitaka Yamakawa
2016	J	`jnl`	Epileptic Seizure Prediction Based on Multivariate Statistical Process Control of Heart Rate Variability Features. IEEE Trans. Biomed. Eng. 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, Eisuke Matsushima
2016	J	`jnl`	Interconnection-Delay and Clock-Skew Estimate Modelings for Floorplan-Driven High-Level Synthesis Targeting FPGA Designs. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Koichi Fujiwara, Kazushi Kawamura, Masao Yanagisawa, Nozomu Togawa
2016	—	`conf`	Missing RRI interpolation for HRV analysis using locally-weighted partial least squares regression. EMBC Keisuke Kamata, Koichi Fujiwara, Toshiki Yamakawa, Manabu Kano
2015	J	`jnl`	A Floorplan-Driven High-Level Synthesis Algorithm for Multiplexer Reduction Targeting FPGA Designs. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Koichi Fujiwara, Kazushi Kawamura, Shin-ya Abe, Masao Yanagisawa, Nozomu Togawa
2015	—	`conf`	Accuracy comparison between two microcontroller-embedded R-wave detection methods for heart-rate variability analysis. APSIPA Toshitaka Yamakawa, Ryunosuke Kinoshita, Koichi Fujiwara, Manabu Kano, Miho Miyajima, Tadashi Sakata, Yuichi Ueda
2015	—	`conf`	Calibration model design based on weighted nearest correlation spectral clustering. ASCC Koichi Fujiwara, Manabu Kano
2015	—	`conf`	Clock skew estimate modeling for FPGA high-level synthesis and its application. ASICON Koichi Fujiwara, Kazushi Kawamura, Masao Yanagisawa, Nozomu Togawa
2015	—	`conf`	Development of sleep apnea syndrome screening algorithm by using heart rate variability analysis and support vector machine. EMBC Chikao Nakayama, Koichi Fujiwara, Masahiro Matsuo, Manabu Kano, Hiroshi Kadotani
2015	—	`conf`	Development of stroke detection method by heart rate variability analysis and support vector machine. APSIPA Keisuke Kamata, Koichi Fujiwara, Tomonobu Kodama, Manabu Kano, Toshitaka Yamakawa, Norikata Kobayashi, Fuminori Shimizu
2015	—	`conf`	Efficient wavenumber selection based on nearest correlation Louvain method for NIR calibration modeling. ASCC Taku Uchimaru, Koji Hazama, Koichi Fujiwara, Manabu Kano
2015	—	`conf`	Heart rate monitoring by a pulse sensor embedded game controller. APSIPA Erika Abe, Hiroshi Chigira, Koichi Fujiwara, Toshitaka Yamakawa, Manabu Kano
2014	—	`conf`	A floorplan-aware high-level synthesis algorithm for multiplexer reduction targeting FPGA designs. APCCAS Koichi Fujiwara, Shin-ya Abe, Kazushi Kawamura, Masao Yanagisawa, Nozomu Togawa
2014	—	`conf`	Development of drowsy driving accident prediction by heart rate variability analysis. APSIPA Erika Abe, Koichi Fujiwara, Toshihiro Hiraoka, Toshitaka Yamakawa, Manabu Kano
2014	—	`conf`	Epileptic seizure monitoring by One-Class Support Vector Machine. APSIPA Koichi Fujiwara, Erika Abe, Yoko Suzuki, Miho Miyajima, Toshitaka Yamakawa, Manabu Kano, Taketoshi Maehara, Katsuya Ohta, Tetsuo Sasano
2014	—	`conf`	Real-time heart rate variability monitoring employing a wearable telemeter and a smartphone. APSIPA Toshitaka Yamakawa, Koichi Fujiwara, Miho Miyajima, Erika Abe, Manabu Kano, Yuichi Ueda
2013	—	`conf`	Development of a wearable HRV telemetry system to be operated by non-experts in daily life. APSIPA Toshitaka Yamakawa, Koichi Fujiwara, Manabu Kano, Miho Miyajima, Yoko Suzuki, Taketoshi Maehara, Katsuya Ohta, Tetsuo Sasano, Masato Matsuura, Eisuke Matsushima
2013	—	`conf`	Efficient input variable selection for calibration model design. ASCC Koichi Fujiwara, Manabu Kano
2013	—	`conf`	Heart rate variability features for epilepsy seizure prediction. APSIPA Hirotsugu Hashimoto, Koichi Fujiwara, Yoko Suzuki, Miho Miyajima, Toshitaka Yamakawa, Manabu Kano, Taketoshi Maehara, Katsuya Ohta, Tetsuo Sasano, Masato Matsuura, Eisuke Matsushima
1998	B	`conf`	A Neural Network Model Based on BP Learning with Stochastic Resonance. ICONIP Nobuyuki Matsui, Koichi Fujiwara, Teijiro Isokawa