Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Nader Nematollahi"'
Publikováno v:
پژوهشهای ریاضی, Vol 7, Iss 2, Pp 397-412 (2021)
The judgment post stratification is a method of stratification of observation by using a key variable, such that stratification will be done after selecting the sample. In this paper, this method will use in two stage cluster sampling. In other words
Externí odkaz:
https://doaj.org/article/f980c3ab4ffd4b67b7564556d216d63a
Publikováno v:
AUT Journal of Mathematics and Computing, Vol 2, Iss 1, Pp 53-60 (2021)
Ranked set sampling is a statistical technique for data collection that generally leads to more efficient estimators than competitors based on simple random sampling. In this paper, we consider estimation of scale parameter of L´evy distribution usi
Externí odkaz:
https://doaj.org/article/c37411eecd4049d3b1c97f41a8a29a56
Publikováno v:
Journal of Statistical Theory and Applications (JSTA), Vol 18, Iss 4 (2019)
In this paper, we consider a numerical pricing of European call and put options under the Heston-Cox-Ingersoll-Ross (HCIR) model. Based on this model, the prices of options are derived by solving a three-dimensional partial differential equation. We
Externí odkaz:
https://doaj.org/article/ab988623a956487ebc859bb3f3bfb17a
Autor:
Negin Mahlooji, Nader Nematollahi
Publikováno v:
Communications in Statistics - Theory and Methods. :1-24
Inference for the power-exponential hazard rate distribution under progressive type-II censored data
Autor:
Bahman Tarvirdizade, Nader Nematollahi
Publikováno v:
Journal of Statistics and Management Systems. 24:1169-1212
In this paper, we consider the problem of estimation and prediction from a new lifetime distribution called the power-exponential hazard rate distribution under progressively type-II right censored...
Autor:
Nader Nematollahi, Hasan Mazarei
Publikováno v:
Probability and Mathematical Statistics. 39:361-383
In clinical research, one of the key problems is to estimate the effect of the best treatment among the given k treatments in two-stage adaptive design. Suppose the effects of two treatments have normal distributions with means θ1 and θ2, respectiv
Autor:
Nader Nematollahi, Bahman Tarvirdizade
Publikováno v:
American Journal of Mathematical and Management Sciences. 39:129-149
The problems of classical and Bayesian estimation of the parameters of the power-exponential hazard rate distribution (P-EHRD) based on record values and the prediction of future record values are ...
Autor:
Nader Nematollahi, S. Rostamian
Publikováno v:
Mathematical Sciences, Vol 13, Iss 2, Pp 175-191 (2019)
The stress–strength parameter $$R = P(Y < X)$$ , as a reliability parameter, is considered in different statistical distributions. In the present paper, the stress–strength reliability is estimated based on progressively type II censored samples,
Publikováno v:
BiometricsREFERENCES. 78(4)
Statistical learning with ranked set samples has shown promising results in estimating various population parameters. Despite the vast literature on rank-based statistical learning methodologies, very little effort has been devoted to studying regres
Publikováno v:
Journal of Statistical Theory and Practice. 15
In this paper, the nonparanormal graphical mixture model is introduced as a flexible multivariate analysis tool with a semiparametric approach. In this model, mixture component densities are nonparanormal distributions with different covariance matri