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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

Statistical Risk Models [PDF]

open access: yesSSRN Electronic Journal, 2016
44 pages; a trivial typo corrected, references updated; to appear in The Journal of Investment Strategies.
Kakushadze, Zura, Yu, Willie
openaire   +2 more sources

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

Bradley-Terry models in R : the BradleyTerry2 package [PDF]

open access: yes, 2012
This is a short overview of the R add-on package BradleyTerry2, which facilitates the specification and fitting of Bradley-Terry logit, probit or cauchit models to pair-comparison data.
Heather Turner   +3 more
core   +1 more source

Statistical physics of pairwise probability models

open access: yesFrontiers in Computational Neuroscience, 2009
Statistical models for describing the probability distribution over the states of biological systems are commonly used for dimensional reduction. Among these models, pairwise models are very attractive in part because they can be fit using a reasonable
Yasser Roudi   +4 more
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

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   +1 more source

A machine learning approach to statistical shape models with applications to medical image analysis [PDF]

open access: yes, 2010
Statistical shape models have become an indispensable tool for image analysis. The use of shape models is especially popular in computer vision and medical image analysis, where they were incorporated as a prior into a wide range of different algorithms.
Lüthi, Marcel
core   +1 more source

Junhui Cai, Dan Yang, Linda Zhao and Wu Zhu's contribution to the Discussion of ‘Vintage Factor Analysis with Varimax Performs Statistical Inference’ by Rohe & Zeng

open access: yes, 2023
In the 1930s, Psychologists began developing Multiple-Factor Analysis to decompose multivariate data into a small number of interpretable factors without any a priori knowledge about those factors.
Yang, Dan   +3 more
core   +1 more source

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