Channel Tracking with Zero Padding Scheme for STBCOFDM System under Fast Fading Environment. - Masaki Takanashi; Keiichiro Hayakawa; Katsushi Sanda; Tsutayuki Shibata (VTC Spring, 2009)

Online Mechanisms for Charging Electric Vehicles in Settings with Varying Marginal Electricity Costs. - Keiichiro Hayakawa; Enrico H. Gerding; Sebastian Stein 001; Takahiro Shiga (IJCAI, 2015)

Adaptive Pricing Mechanisms for On-Demand Mobility. - Maciej Drwal; Enrico H. Gerding; Sebastian Stein 001; Keiichiro Hayakawa; Hironobu Kitaoka (AAMAS, 2017)

Price-based Online Mechanisms for Settings with Uncertain Future Procurement Costs and Multi-unit Demand. - Keiichiro Hayakawa; Enrico H. Gerding; Sebastian Stein 001; Takahiro Shiga (AAMAS, 2018)

Traffic Signal Control Based on Reinforcement Learning with Graph Convolutional Neural Nets. - Tomoki Nishi; Keisuke Otaki; Keiichiro Hayakawa; Takayoshi Yoshimura (ITSC, 2018)

Dynamic traffic resources allocation under elastic demand of users with space-time prism constraints. - Keiichiro Hayakawa; Eiji Hato (CoRR, 2018)

Multi-agent Path Planning with Heterogeneous Cooperation. - Keisuke Otaki; Satoshi Koide; Keiichiro Hayakawa; Ayano Okoso; Tomoki Nishi (ICTAI, 2019)

L0-norm Constrained Autoencoders for Unsupervised Outlier Detection. - Yoshinao Ishii; Satoshi Koide; Keiichiro Hayakawa (PAKDD (2), 2020)

A Dynamic Scheduling Algorithm based on Marginal Contribution in Mixed Passenger-and-Freight Delivery Networks. - Fuga Mayuzumi; Keiichiro Hayakawa; Eiji Hato (ITSC, 2022)

Learning low-dimensional manifolds under the L0-norm constraint for unsupervised outlier detection. - Yoshinao Ishii; Satoshi Koide; Keiichiro Hayakawa (Int. J. Data Sci. Anal., 2022)