Results 11 to 20 of about 6,229,347 (272)

Statistical models with uncertain error parameters

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
In a statistical analysis in Particle Physics, nuisance parameters can be introduced to take into account various types of systematic uncertainties. The best estimate of such a parameter is often modeled as a Gaussian distributed variable with a given ...
Glen Cowan
doaj   +3 more sources

Statistical indices from bifactor models

open access: yesInteracciones, 2017
Many instruments are created with the primary purpose of scaling individuals on a single trait. However psychological traits are often complex and contain domain specific manifestations.
Sergio Alexis Dominguez-Lara   +1 more
doaj   +1 more source

Statistical inference in compound functional models [PDF]

open access: yes, 2012
We consider a general nonparametric regression model called the compound model. It includes, as special cases, sparse additive regression and nonparametric (or linear) regression with many covariates but possibly a small number of relevant covariates ...
Dalalyan, Arnak   +2 more
core   +4 more sources

Statistical models for language representation

open access: yesOntare, 2015
ONTARE. REVISTA DE INVESTIGACIÓN DE LA FACULTAD DE INGENIERÍA This paper discuses several models for the computational representation of language. First, some n-gram models that are based on Markov models are introduced.
Rubén Dorado
doaj   +1 more source

On direct sequential analysis of heart rate variability signals [PDF]

open access: yesArchive of Oncology, 2005
Heart rate variability analysis represents one of the most promising and the most commonly used quantitative measures of the cardiovascular autonomic regulatory system.
Bajić Dragana   +2 more
doaj   +1 more source

Statistical transmutation in doped quantum dimer models [PDF]

open access: yes, 2012
We prove a "statistical transmutation" symmetry of doped quantum dimer models on the square, triangular and kagome lattices: the energy spectrum is invariant under a simultaneous change of statistics (i.e.
Cabra, D. C.   +4 more
core   +5 more sources

Statistical Models for Corporate Credit Risk Assessment – Rating Models

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2016
Taking into consideration the weakness of the models based on discrimination function (Z-score) proposed by Altman within the conditions of polish economy some attempts were taken in the 90s to adjust these models to the reality of post-communist economy.
Aneta Ptak-Chmielewska
doaj   +1 more source

Flowering prediction of pear tree (Pyrus communis L.), apple tree (Malus domestica Borkh) and plum tree (Prunus domestica L.) - similarities and differences

open access: yesActa Agriculturae Slovenica, 2001
Paper discusses the similarities and differences in predicting the full flowering of apple tree (cv. 'Bobovec'), pear tree (cv. 'Pastorjevka') and domestic plum tree. The study was conducted at University of Ljubljana.
Klemen BERGANT   +2 more
doaj   +1 more source

Train Performance Analysis Using Heterogeneous Statistical Models

open access: yesAtmosphere, 2021
This study investigated the effect of a harsh winter climate on the performance of high-speed passenger trains in northern Sweden. Novel approaches based on heterogeneous statistical models were introduced to analyse the train performance to take time ...
Jianfeng Wang, Jun Yu
doaj   +1 more source

Parsimonious statistical learning models for low-flow estimation [PDF]

open access: yesHydrology and Earth System Sciences, 2022
Statistical learning methods offer a promising approach for low-flow regionalization. We examine seven statistical learning models (Lasso, linear, and nonlinear-model-based boosting, sparse partial least squares, principal component regression, random ...
J. Laimighofer, M. Melcher, G. Laaha
doaj   +1 more source

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