Results 1 to 10 of about 1,161,301 (313)

Edgeworth Coefficients for Standard Multivariate Estimates

open access: yesAxioms
I give for the first time explicit formulas for the coefficients needed for the fourth-order Edgeworth expansions of a multivariate standard estimate. I call these the Edgeworth coefficients.
Christopher Stroude Withers
doaj   +3 more sources

Prostate gland volume estimation: anteroposterior diameters measured on axial versus sagittal ultrasonography and magnetic resonance images [PDF]

open access: yesUltrasonography, 2023
Purpose The aim of this study was to evaluate the accuracy of prostate volume estimates calculated from the ellipsoid formula using the anteroposterior (AP) diameter measured on axial and sagittal images obtained through ultrasonography (US) and magnetic
Seo Yeon Youn   +8 more
doaj   +1 more source

Estimation of Standard Auction Models

open access: yesProceedings of the 23rd ACM Conference on Economics and Computation, 2022
We provide efficient estimation methods for first- and second-price auctions under independent (asymmetric) private values and partial observability. Given a finite set of observations, each comprising the identity of the winner and the price they paid in a sequence of identical auctions, we provide algorithms for non-parametrically estimating the bid ...
Yeshwanth Cherapanamjeri   +3 more
openaire   +3 more sources

Assessment of the standard precipitation frequency estimates in the United States

open access: yesJournal of Hydrology: Regional Studies, 2022
Study region: The Conterminous United States Study focus: The NOAA Atlases have provided the standard precipitation frequency estimates (PFEs) for over two decades in the United States, but they are losing that status due to climate change.
Jungho Kim   +5 more
doaj   +1 more source

Comparing Several Missing Data Estimation Methods in Linear Regression;Real Data Example and A Simulation Study

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2023
Analysis on incomplete could lead to biased estimation when using standard statistical procedure since it ignores the missing observations. The disadvantage of ignoring missing data is that the researcher might not have enough data to conduct an analysis.
Anwar Fitrianto   +3 more
doaj   +1 more source

Frequentist standard errors of Bayes estimators [PDF]

open access: yesComputational Statistics, 2017
Frequentist standard errors are a measure of uncertainty of an estimator, and the basis for statistical inferences. Frequestist standard errors can also be derived for Bayes estimators. However, except in special cases, the computation of the standard error of Bayesian estimators requires bootstrapping, which in combination with Markov chain Monte ...
DongHyuk Lee   +2 more
openaire   +2 more sources

Estimating complete cancer prevalence in Europe: validity of alternative vs standard completeness indexes

open access: yesFrontiers in Oncology, 2023
IntroductionComparable indicators on complete cancer prevalence are increasingly needed in Europe to support survivorship care planning. Direct measures can be biased by limited registration time and estimates are needed to recover long term survivors ...
Elena Demuru   +168 more
doaj   +1 more source

Estimating true standard deviations [PDF]

open access: yesFrontiers in Psychology, 2014
A basic statistic that students learn about in their classes is the standard deviation. Like any statistic, standard deviations are influenced by systematic factors and randomness. I propose that researchers should report “corrected” or “true” standard deviations and I show how to calculate them.
openaire   +3 more sources

Estimation accuracy of non-standard maximum likelihood estimators [PDF]

open access: yes2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2017
In many deterministic estimation problems, the probability density function (p.d.f.) parameterized by unknown deterministic parameters results from the marginalization of a joint p.d.f. depending on additional random variables. Unfortunately, this marginalization is often mathematically intractable, which prevents from using standard maximum likelihood
Kbayer, Nabil   +5 more
openaire   +2 more sources

Standard filtration practices may significantly distort planktonic microbial diversity estimates

open access: yesFrontiers in Microbiology, 2015
Fractionation of biomass by filtration is a standard method for sampling planktonic microbes. It is unclear how the taxonomic composition of filtered biomass changes depending on sample volume.
Cory Cruz Padilla   +6 more
doaj   +1 more source

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