Author

K. Nishinari

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Open access Oct 2026

Similar predicted fatal-crash risk, different contribution architectures: A temporally validated analysis of vehicle-pedestrian crashes in Japan.

Vehicle-pedestrian crashes with similar predicted fatal-crash risk may arise from different combinations of contributing conditions, while the distinction between risk magnitude and risk composition has received limited attention. This study investigated whether reproducible multivariable contribution architectures exi...

Xi Lin, C. Feliciani, D. Yanagisawa et al. · Accident Analysis and Preven... · 0 citations

#artificial intelligence Preprint Sep 2026

Warned alike, AI agents avoid the less-crowded road while people take it

Adding one sentence warning that others might follow a routing tip made populations of 50 GPT agents crowd one road while avoiding the nearly empty alternative, and shared forecasts can sustain collective inefficiency among similar agents.

Takahiro Ezaki, Naoto Imura, K. Nishinari · 0 citations

#artificial intelligence Preprint Aug 2026

How a shared state is described determines whether AI agents synchronize

Language-model agents increasingly act in populations, where the outcome that matters is collective: whether they align, split or fail to coordinate, using synchronization, the canonical probe of how interaction rules produce collective order.

Takahiro Ezaki, Naoto Imura, K. Nishinari · 0 citations

2026

When Shippers Become Algorithms: Candidate Exposure, Information Design, and the Concentration of LLM-Mediated Freight Markets

Platform information design, ahead of model choice or model regulation, is the lever that works in a freight matching market, and platform design choices contain it.

Takahiro Ezaki, Naoto Imura, K. Nishinari · arXiv.org · 0 citations