Minimax properties of Dirichlet kernel density estimators
نویسندگان
چکیده
This paper considers the asymptotic behavior in β-Hölder spaces, and under Lp losses, of a Dirichlet kernel density estimator proposed by Aitchison Lauder (1985) for analysis compositional data. In recent work, Ouimet Tolosana-Delgado (2022) established uniform strong consistency normality this estimator. As complement, it is shown here that Aitchison–Lauder can achieve minimax rate asymptotically suitable choice bandwidth whenever (p,β)∈[1,3)×(0,2] or (p,β)∈Ad, where Ad specific subset [3,4)×(0,2] depends on dimension d kernel. It also cannot be when either p∈[4,∞) β∈(2,∞). These results extend to multivariate case, rectify minor way, earlier findings Bertin Klutchnikoff (2011) concerning properties Beta estimators.
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ژورنال
عنوان ژورنال: Journal of Multivariate Analysis
سال: 2023
ISSN: ['0047-259X', '1095-7243']
DOI: https://doi.org/10.1016/j.jmva.2023.105158