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Operator Inference #22

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dynamic-queries opened this issue Feb 22, 2023 · 0 comments

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dynamic-queries commented Feb 22, 2023

Operator Inference needs a robust implementation that goes beyond the Linear least squares approach with simple regularizers that they implement here https://github.com/Willcox-Research-Group/rom-operator-inference-Python3 .

In principle there are two improvements off the top of my head.

Gradient computation from snapshots need to be carried out with robust Fornberg methods : https://web.njit.edu/~jiang/math712/fornberg.pdf
Least squares approach assumes linear and quadratic forms for the operator A. This has to be generalized by leveraging Optim.jl

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