%0 Journal Article
%T Comparaci¨®n entre riesgos competitivos v¨ªa el estimador c¨®pula-gr¨¢fico
%A Y¨¢£¿EZ
%A SERGIO
%A BRANGO
%A HUGO
%A JARAMILLO
%A MARIO C.
%A LOPERA
%A CARLOS M.
%J Revista Colombiana de Estad¨ªstica
%D 2011
%I Universidad Nacional de Colombia
%X the identifiability problem in competing risks associated to the dependence measure between the failure modes, can be solved by means of the copula-graphic estimator which assumes the copula function known. this paper compares, through a simulation study, the copula-graphic estimator for a dependent competing risks model with the traditional one under the assumption of independence. it is shown that a significant subestimation of the reliability function can be made when the dependence is not taken into account. an example ilustrates this point and as a future work it is seen the possibility of using copula-graphic in industrial reliability to predict in accelerated life tests.
%K competing risks
%K copula
%K identifiability
%K reliability.
%U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0120-17512011000200002&lng=en&nrm=iso&tlng=en