Optimal step-stress test under progressive type-I censoring
We consider in this work a k-step-stress accelerated test with equal duration steps tau. Censoring is allowed at each change stress point itau, i = 1, ..., k. The problem of choosing the optimal tau is addressed using variance-optimality as well as determinant-optimality criteria. We investigate in detail the case of progressively Type-I right censored data with a single stress variable.
accelerated life testing change-point d-optimality progressive censoring variance optimality