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4.120  Articles
1 of 412 pages  |  10  records  |  more records»
In this paper we consider a statistical estimation problem for a periodic replacement problem with minimal repair which is one of the mostfundamental maintenance models in practice, and proposetwo parametric bootstrapping methods which are categorizedinto... see more

 We consider the problem of the estimation of the mean squared error (MSE) of some domain mean predictor for Fay-Herriot model. In the simulation study we analyze properties of eight MSE estimators including estimators based on the jackknife method (... see more

One of the problems that occur when working with regression models is regarding the sample size; once the statistical methods used in inferential analyzes are asymptotic if the sample is small the analysis may be compromised because the estimates will be ... see more

A critical area in inventory management is the forecasting of parts or items. Intermittent demand forecasting (IDF) is a highly important forecasting method in inventory management, though it is difficult to predict intermittent demand because of its char... see more

The article presents the structural-parametric synthesis of an ensemble of neural networks of various architectures based on their individual contribution. Topologies and learning algorithms for each classifier are considered. It is described the algorith... see more

In this article, we looked at power of various versions of Box and Pierce statistic and Cramer von Mises test. An extensive simulation study has been conducted to compare the power of these tests. Algorithms have been provided for the power calculations a... see more

In this paper we exploit the parametric portfolio optimization in the Brazilian market. Our data consists of monthly returns of 306 Brazilian stocks in the period between 2001 and 2013. We tested the model both in and out of sample and compared the result... see more

One of the problems that occur when working with regression models is regarding the sample size; once the statistical methods used in inferential analyzes are asymptotic if the sample is small the analysis may be compromised because the estimates will be ... see more

ABSTRAK Kami menggunakan seismogram dari gempa lokal (Ml = 2–3.8) dengan jarak hiposenter 5–55 km untuk memperkirakan faktor kualitas Q dari gelombang S di Central North Island, Selandia Baru. Metoda bootstrap inversi non-parametric GIT diterapkan untuk m... see more

1 of 412 pages  |  10  records  |  more records»