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\iteman{io-port 05644283}
\itemau{Baldi, P.; Kerkyacharian, G.; Marinucci, D.; Picard, D.}
\itemti{Adaptive density estimation for directional data using needlets.}
\itemso{Ann. Stat. 37, No. 6A, 3362-3395 (2009).}
\itemab
Summary: This paper is concerned with density estimation of directional data on the sphere. We introduce a procedure based on thresholding on a new type of spherical wavelets called needlets. We establish a minimax result and prove its optimality. We are motivated by astrophysical applications, in particular in connection with the analysis of ultra high-energy cosmic rays.
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\itemut{density estimation; spherical and directional data; thresholding; needlets}
\itemli{doi:10.1214/09-AOS682}
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