Ryo Koyama

14 papers A 1Journal 1Unranked 12
YearRankTypeTitle / Venue / Authors
2025 — conf
Spatiotemporal Mobility Prediction via Cross-City-Aware Llama-3-8B-Mob.
SIGSPATIAL/GIS
Meisaku Suzuki, Hayato Kumagai, Yusuke Fukushima, Ryo Koyama, Kazuma Takeda, Yusuke Nakamura
2024 — conf
Broadband Transmission Opto-mechanical Switch Based on Cylindrical Ferrule Rotation Switching Using Fiber Bundle Inserted in Ferrule.
OFC
Chisato Fukai, Takui Uematsu, Ryo Koyama, Ikutaro Ogushi, Kazunori Katayama
2024 — conf
Cross-city-aware Spatiotemporal BERT.
HuMob-Challenge@SIGSPATIAL
Meisaku Suzuki, Yusuke Fukushima, Ryo Koyama, Hayato Kumagai, Tomohiro Mimura, Keiichi Ochiai
2024 — conf
Estimation of Energy Storage Status in Power Supply System Using Power over Fiber for Outdoor Environment.
OFC
Tomohiro Kawano, Ryo Koyama, Akihiro Kuroda, Takui Uematsu, Chisato Fukai, Hiroshi Watanabe, Ikutaro Ogushi
2024 — conf
Improving Accuracy of Anomaly Detection in Spatial-Temporal Population Data through SHAP Values of Reconstruction Errors.
STRL@IJCAI
Ryo Koyama, Tomohiro Mimura, Shin Ishiguro, Keisuke Kiritoshi, Takashi Suzuki, Akira Yamada
2024 J jnl
Power-Over-Fiber System With Intermittent Operation Based on Capacitor Voltage Estimation for High-Efficiency Energy Charging.
IEEE Access
Tomohiro Kawano, Ryo Koyama, Akihiro Kuroda, Takui Uematsu, Chisato Fukai, Hiroshi Watanabe, Ikutaro Ogushi
2023 — conf
Estimating future human trajectories from sparse time series data.
HuMob-Challenge@SIGSPATIAL
Ryo Koyama, Meisaku Suzuki, Yusuke Nakamura, Tomohiro Mimura, Shin Ishiguro
2022 — conf
84-fiber MPO connector employing solid refractive index matching material formed on perpendicular polished MT ferrule end.
OFC
Yoshiteru Abe, Ryo Koyama, Kazunori Katayama
2022 — conf
Optical Tapping with Fresnel Reflection for Optical Fiber Power Monitoring.
OECC/PSC
Ryo Koyama, Yoshiteru Abe, Kazunori Katayama
2021 — conf
Rapid Determination of Transportation Line Layout by Combination of AGV's Line Searching and Conveyor's Neighbor Recognition.
ICAC
Ryo Koyama, Shinichi Katsumata, Nobutaka Kimura
2019 — conf
Influence of fiber withdrawal during high-power transmission through optical connector with large splice loss.
OECC/PSC
Chisato Fukai, Yoshiteru Abe, Masaaki Takaya, Ryo Koyama, Kazunori Katayama
2016 — conf
Achievement of dynamic tennis swing motion by offline motion planning and online trajectory modification based on optimization with a humanoid robot.
Humanoids
Ryo Terasawa, Shintaro Noda, Kunio Kojima, Ryo Koyama, Fumihito Sugai, Shunichi Nozawa, Yohei Kakiuchi, Kei Okada, Masayuki Inaba
2016 A conf
Walking control in water considering reaction forces from water for humanoid robots with a waterproof suit.
IROS
Yuta Kojio, Tatsushi Karasawa, Kunio Kojima, Ryo Koyama, Fumihito Sugai, Shunichi Nozawa, Yohei Kakiuchi, Kei Okada, Masayuki Inaba
2015 — conf
Development of life-sized high-power humanoid robot JAXON for real-world use.
Humanoids
Kunio Kojima, Tatsuhi Karasawa, Toyotaka Kozuki, Eisoku Kuroiwa, Sou Yukizaki, Satoshi Iwaishi, Tatsuya Ishikawa, Ryo Koyama, Shintaro Noda, Fumihito Sugai, Shunichi Nozawa, Yohei Kakiuchi, Kei Okada, Masayuki Inaba