In this study, we address the non-trivial problem of determining the optimal shape parameter in radial basis function interpolation. We propose the use of a genetic algorithm, an optimization technique inspired by evolutionary selection, to identify this parameter. Numerical experiments are presented to evaluate the effectiveness of this approach, with direct comparisons to the leave-one-out cross-validation method, thereby highlighting its computational efficiency.

Genetic Algorithm-Based Shape Parameter Tuning for Radial Basis Function Interpolation

Cavoretto, Roberto;De Rossi, Alessandra;Lancellotti, Sandro;Mezzanotte, Domenico
2026-01-01

Abstract

In this study, we address the non-trivial problem of determining the optimal shape parameter in radial basis function interpolation. We propose the use of a genetic algorithm, an optimization technique inspired by evolutionary selection, to identify this parameter. Numerical experiments are presented to evaluate the effectiveness of this approach, with direct comparisons to the leave-one-out cross-validation method, thereby highlighting its computational efficiency.
2026
7
1
1
14
Genetic algorithm; Kernel-based interpolation; Radial basis functions; Scattered data; Shape parameter
Cavoretto, Roberto; De Rossi, Alessandra; Lancellotti, Sandro; Mezzanotte, Domenico
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/2166730
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