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Abstract Details
Activity Number:
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441
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Type:
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Invited
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Date/Time:
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Wednesday, August 1, 2012 : 8:30 AM to 10:20 AM
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Sponsor:
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Section on Physical and Engineering Sciences
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Abstract - #303526 |
Title:
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Bayesian Nonparametric Models for Combining Heterogeneous Reliability Data
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Author(s):
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Richard L. Warr*+ and David H Collins
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Companies:
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Air Force Institute of Technology and Los Alamos National Laboratory
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Address:
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2950 Hobson Way, WPAFB, OH, 45433,
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Keywords:
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Dirichlet Process ;
Hierarchical Modeling ;
Lifetime Prediction ;
Parallel and Series Systems
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Abstract:
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Modern complex engineering systems often present the analyst with a mix of data types that can be used for reliability prediction: system test results, lifetime data from unit tests of components, and subsystems data, all of which may have predictive value for the system lifetime. We present a hierarchical nonparametric framework, using Dirichlet processes, in which time-to-event distributions may be estimated from sample data or derived based on physical failure mechanisms. By applying a Bayesian methodology, the framework can incorporate prior information, including expert opinion.
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