70 citations · 168 across the 11 of their papers we have counts for
10 papers · 1 filter
How a shared state is described determines whether AI agents synchronize
Takahiro Ezaki, Naoto Imura, Katsuhiro Nishinari
Language-model agents increasingly act in populations, where the outcome that matters is collective: whether they align, split or fail to coordinate. Each acts not on the world but…
Model retraining and information sharing in a supply chain with long-term fluctuating demands
Takahiro Ezaki, Naoto Imura, Katsuhiro Nishinari
Demand forecasting based on empirical data is a viable approach for optimizing a supply chain. However, in this approach, a model constructed from past data occasionally becomes ou…
Towards understanding network topology and robustness of logistics systems
Takahiro Ezaki, Naoto Imura, Katsuhiro Nishinari
Advanced integration of logistics systems has been promoted for the sake of competitiveness and sustainability. Such efforts will enable more globally optimal and flexible operatio…
Inflow process of pedestrians to a confined space
Takahiro Ezaki, Kazumichi Ohtsuka, Mohcine Chraibi +5
To better design safe and comfortable urban spaces, understanding the nature of human crowd movement is important. However, precise interactions among pedestrians are difficult to…
Potential global jamming transition in aviation networks
Takahiro Ezaki, Katsuhiro Nishinari
In this paper, we propose a nonlinear transport model for an aviation network. The takeoff rate from an airport is characterized by the degree of ground congestion. Due to the effe…
Collective motion of oscillatory walkers
Takahiro Ezaki, Ryosuke Nishi, Daichi Yanagisawa +1
We study a system of interacting self-propelled particles whose walking velocity depends on the stage of the locomotion cycle. The model introduces a phase equation in the optimal…