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Comparison of order statistics in a random sequence to the same statistics with i.i.d. variables

Jean-Louis Bon, Eugen Păltănea (2005)

ESAIM: Probability and Statistics

The paper is motivated by the stochastic comparison of the reliability of non-repairable k-out-of-n systems. The lifetime of such a system with nonidentical components is compared with the lifetime of a system with identical components. Formally the problem is as follows. Let Ui,i = 1,...,n, be positive independent random variables with common distribution F. For λi > 0 and µ > 0, let consider Xi = Ui/λi and Yi = Ui/µ, i = 1,...,n. Remark that this is no more than a change of scale for each...

Control adaptativo de calidad en procesos industriales.

David de la Fuente García, Cesáreo Hernández Iglesias, R. del Olmo (1989)

Qüestiió

Se acepta que si las observaciones (yi) de un proceso de producción no son independientes, la estructura del error se puede determinar como sugirieron Box-Jenkins (1970). Pero los métodos de B-J son off-line y requieren de cierta experiencia por parte del usuario. En este trabajo, presentamos un procedimiento basado en filtros celosía adaptativos para el control estadístico de procesos (SPC). Este SPC adaptativo puede ser completamente computerizado y aún más, realizable en hardware.

Currently displaying 61 – 80 of 183