Online Program Home
  My Program

Abstract Details

Activity Number: 340 - New Advances in Analysis of Social Science Research
Type: Contributed
Date/Time: Tuesday, August 1, 2017 : 10:30 AM to 12:20 PM
Sponsor: International Chinese Statistical Association
Abstract #323259
Title: Threshold Degradation
Author(s): Chien-Yu Peng* and Ya-Shan Cheng
Companies: Institute of Statistical Science, Academia Sinica and Institute of Statistical Science, Academia Sinica
Keywords: first passage time ; Accelerated degradation test ; threshold regression

Accelerated degradation tests (ADTs) are widely used to assess the lifetime information for highly reliable products. One restrictive assumption with a conventional ADT model is specifying which parameter depends on explanatory variables in advance. The assumption can lead to misuse of physical/chemical mechanisms and unreasonable extrapolation of the product's lifetime at the normal-use conditions. This study proposes a two-stage approach (named threshold degradation) as an alternative model with regression structures that accommodate explanatory variables. An example is performed to show the differences between the conventional ADT model and the threshold degradation model and to demonstrate the advantages of the latter.

Authors who are presenting talks have a * after their name.

Back to the full JSM 2017 program

Copyright © American Statistical Association