Akira Kawai

22 papers Journal 6Unranked 16
YearRankTypeTitle / Venue / Authors
2026 J jnl
Multi-Stage Evolutionary Model Merging with Meta Data Driven Curriculum Learning for Sentiment-Specialized Large Language Modeling.
CoRR
Keito Inoshita, Xiaokang Zhou, Akira Kawai
2025 — conf
27-THz ISRS-Supported Transmission Over 1040 km in S+C+L+U and Extreme Longer-Wavelength Band.
OFC
Shimpei Shimizu, Kosuke Kimura, Akira Kawai, Masashi Abe, Shunya Konno, Takushi Kazama, Masanori Nakamura, Fukutaro Hamaoka, Koji Enbutsu, Takahiro Kashiwazaki, Munehiko Nagatani, Hitoshi Wakita, Yuta Shiratori, Hiroshi Yamazaki, Hiroyuki Takahashi, Takeshi Umeki, Takayuki Kobayashi, Yutaka Miyamoto
2025 J jnl
CIEGAD: Cluster-Conditioned Interpolative and Extrapolative Framework for Geometry-Aware and Domain-Aligned Data Augmentation.
CoRR
Keito Inoshita, Xiaokang Zhou, Akira Kawai, Katsutoshi Yada
2025 — conf
Evaluation Method of Adaptive SDM-MIMO Equaliser Based on the Quantitative Coupled Channel Dynamics.
ECOC
Megumi Hoshi, Kohki Shibahara, Akira Kawai, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Kazuhide Nakajima, Takayuki Kobayashi, Yutaka Miyamoto
2025 — conf
Full C-band 3317-km 12-Coupled-Core-Fiber Transmission with 266.2-Tbps Capacity Using Field-Installed Fiber-Optic Cable.
OFC
Kohki Shibahara, Akira Kawai, Megumi Hoshi, Masanori Nakamura, Takayuki Kobayashi, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Munehiko Nagatani, Hitoshi Wakita, Yuta Shiratori, Hiroshi Yamazaki, Hiroyuki Takahashi, Soichi Endo, Takemi Hasegawa, Koichi Maeda, Shigehiro Takasaka, Ryo Nagase, Yutaka Miyamoto
2025 — conf
Inter-Core Crosstalk Estimation in Uni- and Bi-Directional Multiband WDM Transmissions.
ECOC
Kosuke Kimura, Shimpei Shimizu, Megumi Hoshi, Kohki Shibahara, Akira Kawai, Masanori Nakamura, Fukutaro Hamaoka, Takayuki Kobayashi, Yutaka Miyamoto
2025 — conf
Poster: A Proposal to Detect Driving Danger Signs Using Probe Data.
VNC
Akira Kawai, Asuya Sakioka, Yoshihiro Niimi
2025 J jnl
Programmable Photonic Unitary Processor Enables Parametrized Differentiable Long-Haul Spatial Division Multiplexed Transmission.
CoRR
Mitsumasa Nakajima, Kohki Shibahara, Kohei Ikeda, Akira Kawai, Masaya Notomi, Yutaka Miyamoto, Toshikazu Hashimoto
2025 — conf
Real-Time SDM-MIMO Transmission with 12-Coupled SDM Channels Over Field-Installed Fibre Cable.
ECOC
Kohki Shibahara, Akira Kawai, Megumi Hoshi, Manabu Arikawa, Kohei Hosokawa, Takaya Maeda, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Soichi Endo, Takemi Hasegawa, Koichi Maeda, Shigehiro Takasaka, Ryo Nagase, Takayuki Kobayashi, Yutaka Miyamoto
2025 — conf
SDM Transmission Technologies Enabling Over-10-Tb/S SDM-MIMO Signals.
ECOC
Akira Kawai, Kohki Shibahara, Masanori Nakamura, Megumi Hoshi, Takayuki Kobayashi, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Munehiko Nagatani, Hitoshi Wakita, Yuta Shiratori, Hiroshi Yamazaki, Hiroyuki Takahashi, Soichi Endo, Takemi Hasegawa, Koichi Maeda, Shigehiro Takasaka, Ryo Nagase, Yutaka Miyamoto
2025 — conf
Vertically Coded Probabilistic Shaping Enabling MDL-Tolerant Over-14.5- Tb/S/λ Spatial MIMO Transmission.
ECOC
Akira Kawai, Kohki Shibahara, Masanori Nakamura, Megumi Hoshi, Takayuki Kobayashi, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Munehiko Nagatani, Hitoshi Wakita, Yuta Shiratori, Hiroshi Yamazaki, Hiroyuki Takahashi, Soichi Endo, Takemi Hasegawa, Ryo Nagase, Yutaka Miyamoto
2024 J jnl
Adaptive Segmentation Enhanced Asynchronous Federated Learning for Sustainable Intelligent Transportation Systems.
IEEE Trans. Intell. Transp. Syst.
Xiaokang Zhou, Wei Liang, Akira Kawai, Kaoru Fueda, Jinhua She, Kevin I-Kai Wang
2024 — conf
C+L+U-Band 14.85-THz WDM Transmission Over 80-km-Span G.654.E Fiber with Hybrid PPLN-OPA/EDFA U-Band Lumped Repeater Using 144-Gbaud PCS-QAM Signals.
OFC
Takayuki Kobayashi, Shimpei Shimizu, Akira Kawai, Masanori Nakamura, Masashi Abe, Takushi Kazama, Takeshi Umeki, Munehiko Nagatani, Kosuke Kimura, Hitoshi Wakita, Yuta Shiratori, Fukutaro Hamaoka, Hiroshi Yamazaki, Hiroyuki Takahashi, Yutaka Miyamoto
2024 — conf
Low-Complexity 4D×D MIMO Equalizer Enabling 2.6-Tb/s/λ SDM Signal Reception over Dynamic Four-Coupled-Core Cabled Transmission Line.
OFC
Akira Kawai, Kohki Shibahara, Masanori Nakamura, Takayuki Kobayashi, Takayoshi Mori, Ryota Imada, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Yutaka Miyamoto
2023 — conf
103-ch. 132-Gbaud PS-QAM Signal Inline-amplified Transmission with 14.1-THz Bandwidth Lumped PPLN-based OPAs over 400-km G.652.D SMF.
OFC
Takayuki Kobayashi, Shimpei Shimizu, Masanori Nakamura, Takushi Kazama, Masashi Abe, Takeshi Umeki, Akira Kawai, Fukutaro Hamaoka, Munehiko Nagatani, Hiroshi Yamazaki, Yutaka Miyamoto
2023 — conf
38.4-Tbps Inline-amplified Transmission Using PPLN-based Optical Parametric Amplifier over 6 THz within L- and U-bands.
OFC
Shimpei Shimizu, Takayuki Kobayashi, Akira Kawai, Takushi Kazama, Masanori Nakamura, Koji Enbutsu, Takahiro Kashiwazaki, Masashi Abe, Takeshi Umeki, Yutaka Miyamoto, Tomoyuki Kato, Yu Tanaka, Takeshi Hoshida
2023 J jnl
Graph Attention Network With Spatial-Temporal Clustering for Traffic Flow Forecasting in Intelligent Transportation System.
IEEE Trans. Intell. Transp. Syst.
Yan Chen, Tian Shu, Xiaokang Zhou, Xuzhe Zheng, Akira Kawai, Kaoru Fueda, Zheng Yan, Wei Liang, Kevin I-Kai Wang
2023 — conf
Remote Digital Holographic Characterization of a 75.2 km Few-Mode Fiber without Reference Wave Transfer.
OFC
Akira Kawai, Shimpei Shimizu, Kohki Shibahara, Takayuki Kobayashi, Yutaka Miyamoto
2023 J jnl
Spatio-Temporal Graph Convolutional Networks via View Fusion for Trajectory Data Analytics.
IEEE Trans. Intell. Transp. Syst.
Wenya Hu, Weimin Li, Xiaokang Zhou, Akira Kawai, Kaoru Fueda, Quan Qian, Jianjia Wang
2022 — conf
4-Dimensional IQ Characteristic Estimation for Polarization-multiplexed Coherent Transceivers.
OFC
Akira Kawai, Masanori Nakamura, Takayuki Kobayashi, Yutaka Miyamoto
2022 — conf
Resolution-aware Smoothing and Backward Filter Convergence for Accurate Optical Performance Monitoring.
OECC/PSC
Akira Kawai, Takayuki Kobayashi, Masanori Nakamura, Yutaka Miyamoto
2019 — conf
A Physical Strength Measurement and Analysis System for Elderly People Using Motion Sensors.
UEMCON
Akira Kawai, Shinichi Taniguchi, Hui Li LI, Shizue Izumi