Results 31 to 40 of about 13,575 (293)

Robust Estimations for the Tail Index of Weibull-Type Distribution

open access: yesRisks, 2018
Based on suitable left-truncated or censored data, two flexible classes of M-estimations of Weibull tail coefficient are proposed with two additional parameters bounding the impact of extreme contamination.
Chengping Gong, Chengxiu Ling
doaj   +1 more source

Robust Portfolio Optimization Using Pseudodistances. [PDF]

open access: yesPLoS ONE, 2015
The presence of outliers in financial asset returns is a frequently occurring phenomenon which may lead to unreliable mean-variance optimized portfolios.
Aida Toma, Samuela Leoni-Aubin
doaj   +1 more source

The asymptotic relative efficiency and the ratio of sample sizes when testing two different null hypotheses [PDF]

open access: yes, 2014
Composite endpoints, consisting of the union of two or more outcomes, are often used as the primary endpoint in time-to-event randomized clinical trials.
Gómez, Guadalupe, Gómez-Mateu, Moisés
core   +3 more sources

A Method for Confidence Intervals of High Quantiles

open access: yesEntropy, 2021
The high quantile estimation of heavy tailed distributions has many important applications. There are theoretical difficulties in studying heavy tailed distributions since they often have infinite moments.
Mei Ling Huang, Xiang Raney-Yan
doaj   +1 more source

Nonlinear Stochastic Adaptive Control for DFIG-Based Wind Generation System

open access: yesEnergies, 2023
The aim of this paper is to extract the maximum power from wind energy for the doubly fed induction generator based wind turbine system (DFIG-WT) under the continuous stochastic perturbations of wind speed.
Jian Zhang   +3 more
doaj   +1 more source

Asymptotic Characteristics of the Non-Iterative Estimates of the Linear-by-Linear Association Parameter for Ordinal Log-Linear Models

open access: yesComputation, 2022
Over the past decade, a series of procedures has been introduced to estimate, using a non-iterative method, the linear-by-linear association parameter of an ordinal log-linear model.
Sidra Zafar   +3 more
doaj   +1 more source

The asymptotic relative efficiency of mixed statistical tests [PDF]

open access: yesIEEE Transactions on Information Theory, 1967
Mixed statistical tests are described. It is shown that these tests have a much higher efficiency than conventionally used statistics such as the sign test and polarity coincidence correlation without the high operational complexity of the Wilcoxon, Mann-Whitney, Kendall \tau , or Fisher-Yates: Terry-Hoeffding tests.
Feustal, Edward A., Davisson, Lee D.
openaire   +2 more sources

A General Class of Tests for Testing Homogeneity of Location Parameters against Umbrella Alternatives [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2018
In this paper, a general class of non-parametric tests for testing homogeneity of location parameter against umbrella alternatives is proposed. Testing for umbrella alternatives has many applications in the field of biology, medicine, botany, dose level ...
Manish Goyal, Narinder Kumar
doaj   +1 more source

Asymptotically Tight MLD Bounds and Minimum-Variance Importance Sampling Estimator for Linear Block Codes Over BSCs

open access: yesIEEE Access, 2022
In this paper, we re-examine the classical problem of efficiently evaluating the block and bit error rate performance of linear block codes over binary symmetric channels (BSCs).
Jinzhe Pan, Wai Ho Mow
doaj   +1 more source

Lower Bounds for the Asymptotic Relative Efficiency of Huber Regression

open access: yesMathematics
Huber regression serves as a prominent robust alternative to ordinary least squares (OLS), particularly in the presence of heavy-tailed error distributions.
Xiaoyi Wang, Le Zhou
doaj   +1 more source

Home - About - Disclaimer - Privacy