کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7195846 | 1468249 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Estimation and application for a new extended Weibull distribution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In this paper, a new extended Weibull distribution with one scale parameter and two shape parameters is introduced. It is investigated that the new model has increasing and upside-down bathtub shaped hazard rate functions. The properties of skewness and Weibull type probability plot are discussed that serve as a tool for model identification. Given progressively type-II censored data, the maximum likelihood estimators of the parameters and corresponding confidence intervals are discussed; then the Gibbs sampling technique is derived to construct the Bayesian estimators of the parameters and the credible intervals based on the assumption that the prior of the scale parameter is gamma density function and priors of the shape parameters are the log-concave density function under the square error loss function. Two real data sets are analyzed for illustrating the application of the new model and the proposed Bayesian approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reliability Engineering & System Safety - Volume 121, January 2014, Pages 34-42
Journal: Reliability Engineering & System Safety - Volume 121, January 2014, Pages 34-42
نویسندگان
Xiuyun Peng, Zaizai Yan,