Results 51 to 60 of about 433,236 (198)

Structural damage identification based on the method of generalized uniform load surface curvature

open access: yesAIP Advances, 2020
In view of the fact that the lower-order structural modes can be obtained easily in practice and the structural parameters before damage are unknown, the generalized uniform load surface curvature method based on least squares polynomial fitting is ...
Jiangang Zhao   +3 more
doaj   +1 more source

A weighting strategy for Active Shape Models

open access: yes, 2017
Active Shape Models (ASM) are an iterative segmentation technique to find a landmark-based contour of an object. In each iteration, a least-squares fit of a plausible shape to some detected target landmarks is determined.
Eguizabal, Alma, Schreier, Peter J.
core   +1 more source

Detection of Gaseous Plumes using Basis Vectors

open access: yesSensors, 2009
Detecting and identifying weak gaseous plumes using thermal imaging data is complicated by many factors. There are several methods currently being used to detect plumes.
Lawrence Chilton, Stephen Walsh
doaj   +1 more source

Cointegration in Fractional Systems with Deterministic Trends [PDF]

open access: yes
We consider a cointegrated system generated by processes that may be fractionally integrated, and by additive polynomial and generalized polynomial trends.
Fabrizio Iacone, Peter M Robinson
core  

On Sprent's Generalized Least-Squares Estimator

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1983
Summary This paper studies the asymptotic properties of Sprent's (1966) generalized least-squares estimator of the slope parameter in a functional relationship model which allows errors at different data points be correlated. Consistency is established and the asymptotic variance derived.
openaire   +2 more sources

Practical inference from industrial split-plot designs. [PDF]

open access: yes
Many industrial response surface experiments are deliberately not conducted in a completely randomized fashion. This is because some of the factors investigated in the experiment are hard to change.
Goos, Peter   +2 more
core  

Iteratively Reweighted Least Squares Fiducial Interval for Variance in Unbalanced Variance Components Model

open access: yesMathematics
The objective of this work is to propose the iteratively reweighted least squares concept to form a fiducial generalized pivotal quantity of the between-group variance component for the unbalanced variance components model.
Arisa Jiratampradab   +2 more
doaj   +1 more source

Generalized Sum Plots

open access: yesRevstat Statistical Journal, 2011
Sousa and Michailidis (2004) developed the sum plot based on the Hill (1975) estimator as a diagnostic tool for selecting the optimal k when the distribution is heavy tailed.
J. Beirlant , E. Boniphace , G. Dierckx
doaj   +1 more source

Estimation of Higher-Order Spatial Autoregressive Panel Data Error Component Models [PDF]

open access: yes
This paper develops an estimator for higher-order spatial autoregressive panel data error component models with spatial autoregressive disturbances, SARAR(R,S).
Harald Badinger, Peter Egger
core  

The Inverse Variance Weighted Least Squares Simple Regression as Generalized Cochran–Armitage Test for Trend

open access: yesJournal of Clinical Question
Trend tests such as the Cochran–Armitage test for trend, the Jonckheere–Terpstra test, and Cuzick’s test require specific data formats, limiting their applicability.
Nobuyuki Horita   +3 more
doaj   +1 more source

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