Zobrazeno 1 - 10
of 4 915
pro vyhledávání: '"Weighted Least Squares"'
Publikováno v:
Geodesy and Geodynamics, Vol 15, Iss 6, Pp 568-581 (2024)
The reliability theory has been an important element of the classical geodetic adjustment theory and methods in the linear Gauss-Markov model. Although errors-in-variables (EIV) models have been intensively investigated, little has been done about re
Externí odkaz:
https://doaj.org/article/08f4ca5da1eb4edf8d677607a2bf1e8e
Autor:
Ulises Rosas‐Puchuri, Aintzane Santaquiteria, Sina Khanmohammadi, Claudia Solís‐Lemus, Ricardo Betancur‐R
Publikováno v:
Methods in Ecology and Evolution, Vol 15, Iss 9, Pp 1611-1623 (2024)
Abstract Phylogenetic regression is a type of generalised least squares (GLS) method that incorporates a modelled covariance matrix based on the evolutionary relationships between species (i.e. phylogenetic relationships). While this method has found
Externí odkaz:
https://doaj.org/article/b2d0e9a81f284a93a3cb9aa03c9a2674
Autor:
João Marôco
Publikováno v:
Stats, Vol 7, Iss 3, Pp 984-1001 (2024)
Factor analysis, a staple of correlational psychology, faces challenges with ordinal variables like Likert scales. The validity of traditional methods, particularly maximum likelihood (ML), is debated. Newer approaches, like using polychoric correlat
Externí odkaz:
https://doaj.org/article/179111b7d44c46c98eb63cee1d4f39be
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-21 (2024)
Abstract Partial accelerated life tests (PALTs) are employed when the results of accelerated life testing cannot be extended to usage circumstances. This work discusses the challenge of different estimating strategies in constant PALT with complete d
Externí odkaz:
https://doaj.org/article/4f37a1a3d376410695cf7d7c63d1a3dc
Publikováno v:
Complex & Intelligent Systems, Vol 10, Iss 6, Pp 7965-7986 (2024)
Abstract The aim of this study is to address the issue of TDOA/FDOA measurement accuracy in complex underwater environments, which is affected by multipath effects and variations in water sound velocity induced by the challenging nature of the underw
Externí odkaz:
https://doaj.org/article/1dbb6c6518654b9db850dea85d0df260
Autor:
Alexander Robitzsch
Publikováno v:
Stats, Vol 7, Iss 3, Pp 576-591 (2024)
The two-parameter normal-ogive (2PNO) model is one of the most popular item response theory (IRT) models for analyzing dichotomous items. Consistent parameter estimation of the 2PNO model using marginal maximum likelihood estimation relies on the loc
Externí odkaz:
https://doaj.org/article/3e709c76f9f84ac482b206605b8f4afc
Autor:
Fatima M. Selevany, Bashar Al-Talib
Publikováno v:
المجلة العراقية للعلوم الاحصائية, Vol 21, Iss 1, Pp 32-45 (2024)
In this research, it was reducing or excluding the effect of not satisfying the assumption of normal distribution of the data, due to the presence of types of outlying values in it when we wish to choose the best regression equation by robust methods
Externí odkaz:
https://doaj.org/article/288e6c2c50784277976a9bafb0481e63
Autor:
Ban Al ani, Musa Mohammed Musa
Publikováno v:
المجلة العراقية للعلوم الاحصائية, Vol 21, Iss 1, Pp 59-75 (2024)
Sometimes the researcher faces a problem in obtaining data, or there may be difficulty in obtaining it due to cost, effort, or other reasons related to the time. In this case, sampling methods are used that ensure the researcher achieves his desired
Externí odkaz:
https://doaj.org/article/d8386d6f9650414ca41f698fc9d21bf1
Publikováno v:
SoftwareX, Vol 27, Iss , Pp 101782- (2024)
The majority of current commercial available Unmanned Aerial Vehicles (UAV) depend mainly on satellite signals to estimate their position. Although this is not a problem in outdoor environments, in scenarios where these signals are obstructed, the UA
Externí odkaz:
https://doaj.org/article/e3406a2c9f6c4eb1872cac7f1e0abc81