Invariance and R-ε criterion.

Título inglés Invariance and R-ε criterion.
Título español Invariancia y criterio R-ε.
Autor/es Horra, Julián de la
Organización Dep. Mat. Fac. Cienc. Secc. Mat. Univ. Autón. Madrid, Madrid, España
Revista 0213-8190
Publicación 1986, 1 (2): 37-45, 3 Ref.
Tipo de documento articulo
Idioma Inglés
Resumen inglés The R-ε criterion is considered as a generalization of the minimax criterion, in a decision problem with Θ = {θ1, ..., θn}, and its relation with the invariance is studied. If a decision problem is invariant under a finite group G, it is known, from the minimax point of view that, for any rule δ, there exists an invariant rule δ' which is either preferred or equivalent to δ. The question raised in this paper is: given that the minimax ordering is a particular case of R-ε ordering, is it possible to extend this property to the R-ε criterion? And, if the answer is negative, is it possible to give a sufficient and necessary condition for R-ε orderings with this property? A complete answer is given to this problem; it is proved that the property does not hold true for any R-ε ordering that does not coincide with the minimax ordering.
Clasificación UNESCO 120904
Palabras clave español Criterio minimax ; Decisión estadística ; Invariancia
Código Z-Math Zbl 0656.62016
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