An Expectation Maximization Algorithm to Model Failure Times by Continuous-Time Markov Chains

المؤلفون المشاركون

Zhao, Dengfu
Chen, Zhiping
Duan, Qihong

المصدر

Mathematical Problems in Engineering

العدد

المجلد 2010، العدد 2010 (31 ديسمبر/كانون الأول 2010)، ص ص. 1-16، 16ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2010-09-21

دولة النشر

مصر

عدد الصفحات

16

التخصصات الرئيسية

هندسة مدنية

الملخص EN

In many applications, the failure rate function may present a bathtub shape curve.

In this paper, an expectation maximization algorithm is proposed to construct a suitable continuous-time Markov chain which models the failure time data by the first time reaching the absorbing state.

Assume that a system is described by methods of supplementary variables, the device of stage, and so on.

Given a data set, the maximum likelihood estimators of the initial distribution and the infinitesimal transition rates of the Markov chain can be obtained by our novel algorithm.

Suppose that there are m transient states in the system and that there are n failure time data.

The devised algorithm only needs to compute the exponential of m×m upper triangular matrices for O(nm2) times in each iteration.

Finally, the algorithm is applied to two real data sets, which indicates the practicality and efficiency of our algorithm.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Duan, Qihong& Chen, Zhiping& Zhao, Dengfu. 2010. An Expectation Maximization Algorithm to Model Failure Times by Continuous-Time Markov Chains. Mathematical Problems in Engineering،Vol. 2010, no. 2010, pp.1-16.
https://search.emarefa.net/detail/BIM-456720

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Duan, Qihong…[et al.]. An Expectation Maximization Algorithm to Model Failure Times by Continuous-Time Markov Chains. Mathematical Problems in Engineering No. 2010 (2010), pp.1-16.
https://search.emarefa.net/detail/BIM-456720

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Duan, Qihong& Chen, Zhiping& Zhao, Dengfu. An Expectation Maximization Algorithm to Model Failure Times by Continuous-Time Markov Chains. Mathematical Problems in Engineering. 2010. Vol. 2010, no. 2010, pp.1-16.
https://search.emarefa.net/detail/BIM-456720

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-456720