OPTIMAL CLASSIFICATION OF HIGHLY-RELIABLE PRODUCTS WHOSE DEGRADATION PATHS SATISFY WIENER PROCESSES [1]

摘要

In a paper published recently in this journal, Yu [ 1 ] investigated the classification problem where the products' degradation paths satisfy Wiener processes. However, due to the dependence of the standard normal distributions Z{sub}i's and Z{sub}j's in the Appendix (the proof of Proposition 1), the expressions for inf{sub}(η{top}→∈Ω)P{sub}(η{top}→)(CDCR) and sup{sub}(η{top}→∈Ω)P{sub}(η{top}→) (ICDCR) in Proposition 1 of the paper cannot hold. Rather, only a lower bound of inf{sub}(η{top}→∈Ω)P{sub}(η{top}→) (CDCR) and an upper bound of sup{sub}(η{top}→∈Ω)P{sub}(η{top}→) (ICDCR) can be obtained. A consequence of this is that Tables I and II should also be corrected. The purpose of this note is to correct the mistakes.