15 citations · 20 across the 4 of their papers we have counts for
4 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…
Stochastic optimization of a mixed moving average process for controlling non-Markovian streamflow environments
Hidekazu Yoshioka, Tomohiro Tanaka, Yumi Yoshioka +1
We investigated a cost-constrained static ergodic control problem of the variance of measure-valued affine processes and its application in streamflow management. The controlled sy…
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…