A novel differential evolution algorithm approach for estimating the parameters of Gamma distribution: An application to the failure stresses of single carbon fibres

Authors : Aynur YONAR, Nimet YAPICI PEHLİVAN

Pages : 1493-1514

Doi:10.15672/hujms.689381

View : 29 | Download : 5

Publication Date : 2020-08-06

Article Type : Research Paper

Abstract :Three-parameter insert ignore into journalissuearticles values(3-p); Gamma distribution is widely used to model for skewed data in the reliability field. Thus, the problem of parameter estimation for the Gamma distribution has remained significant and interesting in all times. The maximum likelihood insert ignore into journalissuearticles values(ML); and the least square insert ignore into journalissuearticles values(LS); are the most popular methods in the parameter estimation. In this study, a novel Differential Evolution insert ignore into journalissuearticles values(DE); algorithm is proposed for the ML and LS estimation of the parameters of the 3-p Gamma distribution. This approach overcomes the problem of how to determine the search space of the DE by utilizing a new search space based on the confidence interval. The modified maximum likelihood and the profile likelihood methods are considered to constitute the confidence interval. In order to examine the performance of the proposed approach, an extensive Monte Carlo simulation study and a real data application are performed. The results show that this proposed approach is effective for estimating the parameters of the 3-p Gamma distribution with respect to mean square error and deficiency criteria.
Keywords : Differential evolution, Gamma distribution, Maximum Likelihood, Least Square, Monte Carlo simulation, Parameter Estimation