Nonlinear least-squares spline fitting with variable knots

12 Mar 2020 Kovács Péter Fekete Andrea M.

In this paper, we present a nonlinear least-squares fitting algorithm using B-splines with free knots. Since its performance strongly depends on the initial estimation of the free parameters (i.e. the knots), we also propose a fast and efficient knot-prediction algorithm that utilizes numerical properties of first-order B-splines... (read more)

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