This paper considers the well known problem of estimating reliability in discrete reliability growth context with sequence of dichotomous success-failure outcomes.More precisely,the authors generalize the simple order relationship constraint with some coefficients.The authors prove that under some mild conditions,the generalized constraint MLE problem can be transformed to a traditional isotonic problem.The authors also study the lower confidence limit estimation of reliability with sample space ranking method.A simulation is conducted to illustrate the superiority of the proposed method.
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