18 citations · 50 across the 14 of their papers we have counts for
12 papers · 1 filter
Distributionally robust decision-making under ambiguity: case study of water environmental management
Hidekazu Yoshioka, Motoh Tsujimura, Yumi Yoshioka +1
Decision-making under uncertainty is ubiquitous in environmental project planning. Environmental processes such as a streamflow discharge often present a subexponential memory, whe…
Mathematical model for sustainable fisheries resource management accounting for size spectrum
Hidekazu Yoshioka, Yumi Yoshioka, Motoh Tsujimura +1
This paper proposes a novel modelling and control framework for growth models that incorporate a size spectrum in conjunction with numerical computation and extensive field surveys…
Non-exchangeable evolutionary and mean field games and their applications
H. Yoshioka, M. Tsujimura, T. Tanaka
A replicator dynamic for non-exchangeable agents in a continuous action space is formulated and its well-posedness is proven in a space of probability measures. The non-exchangeabi…
Generalized pair-wise logit dynamic and its connection to a mean field game: theoretical and computational investigations focusing on resource management
Hidekazu Yoshioka, Motoh Tsujimura
Logit dynamics are evolution equations that describe transitions to equilibria of actions among many players. We formulate a pair-wise logit dynamic in a continuous action space wi…
Environmental management and restoration under unified risk and uncertainty using robustified dynamic Orlicz risk
Hidekazu Yoshioka, Motoh Tsujimura, Futoshi Aranishi +1
Environmental management and restoration should be designed such that the risk and uncertainty owing to nonlinear stochastic systems can be successfully addressed. We apply the rob…
Modeling and computation of an integral operator Riccati equation for an infinite-dimensional stochastic differential equation governing streamflow discharge
Hidekazu Yoshioka, Motoh Tsujimura, Tomohiro Tanaka +2
We propose a linear-quadratic (LQ) control problem of streamflow discharge by optimizing an infinite-dimensional jump-driven stochastic differential equation (SDE). Our SDE is a su…