Consistency of a nonparametric conditional mode estimator for random fields |
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Authors: | Sophie Dabo-Niang Sidi Ali Ould-Abdi Ahmedoune Ould-Abdi Aliou Diop |
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Affiliation: | 2. Laboratoire EQUIPPE, Université Charles De Gaulle, Lille, France 3. INRIA-MODAL, Lille, France 1. Laboratoire LERSTAD, Université Gaston Berger, Saint-Louis, Sénégal
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Abstract: | Given a stationary multidimensional spatial process $left{ Z_{mathbf{i}}=left( X_{mathbf{i}}, Y_{mathbf{i}}right) in mathbb R ^dright. left. times mathbb R ,mathbf{i}in mathbb Z ^{N}right} $ , we investigate a kernel estimate of the spatial conditional mode function of the response variable $Y_{mathbf{i}}$ given the explicative variable $X_{mathbf{i}}$ . Consistency in $L^p$ norm and strong convergence of the kernel estimate are obtained when the sample considered is a $alpha $ -mixing sequence. An application to real data is given in order to illustrate the behavior of our methodology. |
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