Papers › Constrained curve fitting for semi-parametric models with radial basis function networks

Constrained curve fitting for semi-parametric models with radial basis function networks

6 Feb 2024arXiv:2402.04175links table onlyarchive 2025-07-28

Curtis Taylor Peterson, Anna Hasenfratz

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Common to many analysis pipelines in lattice gauge theory and the broader scientific discipline is the need to fit a semi-parametric model to data. We propose a fit method that utilizes a radial basis function network to approximate the non-parametric component of such models. The approximate parametric model is fit to data using the basin hopping global optimization algorithm. Parameter constraints are enforced through Gaussian priors. The viability of our method is tested by examining its use in a finite-size scaling analysis of the q-state Potts model and p-state clock model with q=2,3 and p=4,∞.

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