Results 21 to 30 of about 26,781 (264)

Wavelet Estimation of Regression Derivatives for Biased and Negatively Associated Data

open access: yesRevstat Statistical Journal, 2022
This paper considers the estimation of the derivatives of a regression function based on biased data. The main feature of the study is to explore the case where the data comes from a negatively associated process.
Junke Kou , Christophe Chesneau
doaj   +1 more source

On Biased Stochastic Gradient Estimation

open access: yesJ. Mach. Learn. Res., 2019
We present a uniform analysis of biased stochastic gradient methods for minimizing convex, strongly convex, and non-convex composite objectives, and identify settings where bias is useful in stochastic gradient estimation. The framework we present allows us to extend proximal support to biased algorithms, including SAG and SARAH, for the first time in ...
Derek Driggs   +2 more
openaire   +4 more sources

Biases in fiscal multiplier estimates [PDF]

open access: yesEuropean Journal of Political Economy, 2019
The "true" size of fiscal multipliers is widely debated by economists and policy makers as large (small) multipliers provide arguments to expand (cut) public spending. Within a meta-analytical framework, we ask whether the large observed variance in multiplier estimates can be explained by the national imprint and various author incentives.
Asatryan, Zareh   +3 more
openaire   +4 more sources

Gender Biases in Estimation of Others’ Pain [PDF]

open access: yesThe Journal of Pain, 2021
Caregiving and other interpersonal interactions often require accurate perception of others' pain from nonverbal cues, but perceivers may be subject to systematic biases based on gender, race, and other contextual factors. Such biases could contribute to systematic under-recognition and undertreatment of pain. In 2 experiments, we studied the impact of
Zhang, Lanlan   +4 more
openaire   +3 more sources

Biased goiter prevalence estimate

open access: yesIndian Journal of Community Medicine, 2009
Sir, There are some basic queries related to the article ‘Prevalence of Goiter in Rural Area of Belgaum District, Karnataka’(1). In the introduction the authors should have made some mention of the magnitude of the problem in Karnataka from earlier studies or should have informed that no such study is available.
Soudarssanane M, Punithakumary P
openaire   +3 more sources

Replacement of Biased Estimators with Unbiased Ones in the Case of Student’s t-Distribution and Geary’s Kurtosis

open access: yesHungarian Journal of Industry and Chemistry, 2017
The use of biased estimators can be found in some historically and up to now important tools in statistical data analysis. In this paper their replacement with unbiased estimators at least in the case of the estimator of the population standard deviation
Tóth Gergely, Szepesváry Pál
doaj   +1 more source

An unbiased estimator with prior information

open access: yesArab Journal of Basic and Applied Sciences, 2020
The ordinary least square (OLS) estimator suffers a breakdown in the presence of multicollinearity. The estimator is still unbiased but possesses a significant variance.
Adewale F. Lukman   +3 more
doaj   +1 more source

Integer estimation in the presence of biases [PDF]

open access: yesJournal of Geodesy, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On Estimation Following Subset Selection from Truncated Poisson Distributions under Stein Loss Function

open access: yesRevstat Statistical Journal, 2010
In this paper, we consider the problem of estimating the parameters of a subset selected from p (p ≥ 2) left-truncated Poisson distributions under Stein loss function. Two problems of estimations are considered; average worth and simultaneous estimation.
A. Shanubhogue, Riyadh R. Al-Mosawi
doaj   +1 more source

Pointwise Optimality of Wavelet Density Estimation for Negatively Associated Biased Sample

open access: yesMathematics, 2020
This paper focuses on the density estimation problem that occurs when the sample is negatively associated and biased. We constructed a block thresholding wavelet estimator to recover the density function from the negatively associated biased sample.
Renyu Ye, Xinsheng Liu, Yuncai Yu
doaj   +1 more source

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