Geodesic
Quadratically admissible estimators in random models.
Mathematica Applicanda, Tome 4 (1976) no. 7, pp. 117-122.

Voir la notice de l'article provenant de la source Annales Societatis Mathematicae Polonae Series

The author is concerned with a random model of the form y=1μ+X1β1+⋯+Xkβk, where 1 is the n-vector of ones, μ is an unknown constant, Xi is an n×pi matrix of known constants, and βi is a pi-vector of random variables. It is assumed that pk and Xk=I the identity matrix of order n, and also that β1 are mutually independent, with βk∼Npi, i=1,⋯,k, where Vk=I, Vi is a known pi nonnegative definite matrix, and σi is an unknown nonnegative parameter, with the additional requirement that σk be strictly positive.
DOI : 10.14708/ma.v4i7.1201
Classification : 62J10 
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     title = {Quadratically admissible estimators in random models.},
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R. Zmyślony. Quadratically admissible estimators in random models.. Mathematica Applicanda, Tome 4 (1976) no. 7, pp.  117-122. doi : 10.14708/ma.v4i7.1201. http://geodesic.mathdoc.fr/articles/10.14708/ma.v4i7.1201/

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