Search Results for author: Yohei Sawada

Found 3 papers, 0 papers with code

An efficient estimation of time-varying parameters of dynamic models by combining offline batch optimization and online data assimilation

no code implementations24 Oct 2021 Yohei Sawada

Since HOOPE-PF is the extension of the existing particle filter which has been extensively applied to many earth system models such as land, ecosystem, hydrology, and paleoclimate reconstruction, the HOOPE-PF can be applied to improve the simulation of these earth system models by considering time-varying model parameters.

Machine learning accelerates parameter optimization and uncertainty assessment of a land surface model

no code implementations9 Sep 2019 Yohei Sawada

Second, I developed the statistical machine learning based surrogate model, which is computationally cheap but accurately mimics the relationship between parameters and the cost function, by applying the Gaussian process regression to learn the model simulation.

BIG-bench Machine Learning

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