Surrogate playground

Cite as:

Jatnieks, Janis; De Lucia, Marco; Sips, Mike; Dransch, Doris (2019): Surrogate playground. V. 1.0. GFZ Data Services. https://doi.org/10.5880/GFZ.1.5.2018.008

Status

I N R E V I E W : Jatnieks, Janis; De Lucia, Marco; Sips, Mike; Dransch, Doris (2019): Surrogate playground. V. 1.0. GFZ Data Services. https://doi.org/10.5880/GFZ.1.5.2018.008

Abstract

Surrogate playground is an automated machine learning approach written for rapidly screening a large number of different models to serve as surrogates for a slow running simulator. This code was written for a reactive transport application where a fluid flow model (hydrodynamics) is coupled to a geochemistry simulator (reactions in time and space) to simulate scenarios such as underground storage of CO2 or hydrogen storage for excess energy from wind farms. The challenge for such applications is that the geochemistry simulator is typically slow compared to fluid dynamics and constitutes the main bottleneck for producing highly detailed simulations of such application scenarios. This approach attempts to find machine learning models that can replace the slow running simulator when trained on input-output data from the geochemistry simulator. The code may be of more general interest as this prototype can be used to screen many different machine learning models for any regression problem in general. To illustrate this it also includes a demonstration example using the Boston housing standard data-set.

Authors

Jatnieks, Janis;GFZ German Research Centre for Geosciences, Potsdam, Germany;Section 1.5 Geoinformatics, GFZ German Research Centre for Geosciences, Potsdam, Germany
De Lucia, Marco;GFZ German Research Centre for Geosciences, Potsdam, Germany;Section 3.4 Fluid Systems Modelling, GFZ German Research Centre for Geosciences, Potsdam, Germany
Sips, Mike;GFZ German Research Centre for Geosciences, Potsdam, Germany;Section 1.5 Geoinformatics, GFZ German Research Centre for Geosciences, Potsdam, Germany
Dransch, Doris;GFZ German Research Centre for Geosciences, Potsdam, Germany;Section 1.5 Geoinformatics, GFZ German Research Centre for Geosciences, Potsdam, Germany

Contact

Jatnieks, Janis; Section 1.5 Geoinformatics, GFZ German Research Centre for Geosciences;
Sips, Mike; Section 1.5 Geoinformatics, GFZ German Research Centre for Geosciences;