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