حبیبی راد, آرزو
گروه آمار، دانشگاه فردوسی مشهد
[ 1 ] - پیش‌بینی دو‌نمونه‌ای بیزی در داده‌های سانسورشده‌ی فزاینده از توزیع نمایی تعمیم‌یافته، تحت تابع‌های زیان متقارن و نامتقارن
در بسیاری از پژوهش‌های آماری پیش‌بینی نقش مهمی دارد. مثال‌هایی در این زمینه شامل سامانه‌های مهندسی، طرح آزمایش‌ها و غیره می‌باشند. در این مقاله، بر اساس داده‌های سانسورشده‌ی فزاینده‌ی نوع دوم در الگوی نمایی تعمیم‌یافته، پیشگوگرهای بیزی نقطه‌ای و بازه‌ای تحت توزیع‌های پیشین آگاهی‌بخش و ناآگاهی‌بخش مورد بررسی قرار می‌گیرند. همچنین کران‌های پیش‌بینی و پیشگوگرهای نقطه‌ای بیزی را تحت دو تابع زیان تو...
[ 2 ] - Exp-Uniform Distribution: Properties and Characterizations
In this paper, we study properties of exp-uniform distribution and its applications. We provide closed forms for the density function and moments of order statistics and we also discuss estimation of the parameters via the maximum likelihood method. We will present certain characterizations of exp-uniform distribution. The applications of this distribution are illustrated by fitting it to three...
[ 3 ] - An EM Algorithm for Estimating the Parameters of the Generalized Exponential Distribution under Unified Hybrid Censored Data
The unified hybrid censoring is a mixture of generalized Type-I and Type-II hybrid censoring schemes. This article presents the statistical inferences on Generalized Exponential Distribution parameters when the data are obtained from the unified hybrid censoring scheme. It is observed that the maximum likelihood estimators can not be derived in closed form. The EM algorithm for computing the ma...
[ 4 ] - Analysis of Hybrid Censored Data from the Lognormal Distribution
The mixture of Type I and Type II censoring schemes, called the hybrid censoring. This article presents the statistical inferences on lognormal parameters when the data are hybrid censored. We obtain the maximum likelihood estimators (MLEs) and the approximate maximum likelihood estimators (AMLEs) of the unknown parameters. Asymptotic distributions of the maximum likelihood estimators are used ...
[ 5 ] - Bounds for CDFs of Order Statistics Arising from INID Random Variables
In recent decades, studying order statistics arising from independent and not necessary identically distributed (INID) random variables has been a main concern for researchers. A cumulative distribution function (CDF) of these random variables (Fi:n) is a complex manipulating, long time consuming and a software-intensive tool that takes more and more times. Therefore, obtaining approximations a...
[ 6 ] - Non-Bayesian Estimation and Prediction under Weibull Interval Censored Data
In this paper, a one-sample point predictor of the random variable X is studied. X is the occurrence of an event in any successive visits $L_i$ and $R_i$ :i=1,2…,n (interval censoring). Our proposed method is based on finding the expected value of the conditional distribution of X given $L_i$ and $R_i$ (i=1,2…,n). To make the desired prediction, our approach is on the basis of approximating the...
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