Author

Stéphane Bouka

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Preprint Sep 2026

Testing for point-impact effects in a spatial semi-functional linear regression model

This paper introduces a novel semiparametric testing framework for localized point-impact effects within a spatial semi-functional linear regression model. We address an intricate inferential problem that simultaneously accommodates three distinct sources of complexity: an infinite-dimensional global functional slope,...

Stéphane Bouka, Emmanuel de Dieu Nkou, Alban Mbina Mbina et al. · 0 citations

Preprint Oct 2026

Spatial Functional $k$-Nearest-Neighbour Regression under Polynomial Dependence

This paper investigates non-parametric regression estimation when the explanatory variable takes values in a separable Hilbert space and observations are sampled over an increasing regular spatial lattice. Under a rigorous field-to-field independence setup between covariates and errors, we explore the structural and as...

Stéphane Bouka · 0 citations