arxivstat.MLcs.LG2026-07-23
Automatic knot selection in smooth additive models
Nicolás Carrizosa, Vanesa Guerrero, María Durbán
B-spline regression constitutes a widely used framework for nonparametric modeling. The performance of this methodology depends on specifying the number and placement of changepoints, known as knots, prior to the estimation process. Such knot sequence determines the dimension of…