Results 131 to 140 of about 44,033 (313)

A Method of Moments Estimator of Tail Dependence in Elliptical Copula Models [PDF]

open access: yes
An elliptical copula model is a distribution function whose copula is that of an elliptical distri- bution. The tail dependence function in such a bivariate model has a parametric representation with two parameters: a tail parameter and a correlation ...
Krajina, A.
core   +1 more source

Patient‐reported outcomes, postoperative pain and pain relief after day‐case surgery (POPPY): chronic post‐surgical pain prevalence and associations*

open access: yesAnaesthesia, EarlyView.
Summary Introduction Day‐case surgical activity is increasing in the UK yet there is a lack of data on the prevalence of chronic post‐surgical pain in this population. This study uses data from the POPPY study to estimate the prevalence of chronic post‐surgical pain after day‐case surgery, its relationship with quality of life and also explores ...
Adam B. Brayne   +2037 more
wiley   +1 more source

Seismic Reliability Analysis of Reinforced Concrete Arch Bridges Considering Component Correlation

open access: yesBuildings
To more effectively account for the correlation between components in the seismic reliability analysis of reinforced concrete arch bridges, this study proposes a system seismic reliability analysis method based on the D-vine Copula function. First, based
Jianjun Liu   +4 more
doaj   +1 more source

Dose Correlation of Danggui and Chuanxiong Drug Pairs in the Chinese Medicine Prescription Based on the Copula Function. [PDF]

open access: yesEvid Based Complement Alternat Med, 2020
Zhao X   +11 more
europepmc   +1 more source

Multivariate and Online Transfer Learning With Uncertainty Quantification [PDF]

open access: yesStat Med
ABSTRACT Untreated periodontitis causes inflammation within the supporting tissue of the teeth and can ultimately lead to tooth loss. Modeling periodontal outcomes is beneficial as they are difficult and time‐consuming to measure, but disparities in representation between demographic groups must be considered.
Hickey J, Williams J, Reich B, Hector E.
europepmc   +2 more sources

Convergence of Archimedean Copulas [PDF]

open access: yes
Convergence of a sequence of bivariate Archimedean copulas to another Archimedean copula or to the comonotone copula is shown to be equivalent with convergence of the corresponding sequence of Kendall distribution functions.No extra differentiability ...
Charpentier, A., Segers, J.J.J.
core   +1 more source

Corneal power modelling with OCT data – Thin and thick lens paraxial models versus raytracing

open access: yesActa Ophthalmologica, EarlyView.
Abstract Background Evaluating keratometric power with Zeiss index (PKZ), paraxial thick cornea power (Gullstrand [PG]) and power referenced to the front (PFV) and back vertex plane (PBV) and raytracing power (PR), and modelling the deviation from PKZ with a multivariable linear prediction model.
Achim Langenbucher   +4 more
wiley   +1 more source

Can Technological and Customer Competencies Enable the Firm to Be Greener? Simultaneous Consideration of Resource‐Based View and Social License to Operate

open access: yesBusiness Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT This research explores the contribution of firm competencies and green management practices to enhancing a firm's sustainable performance. It examines the effects of technological competencies (TC) and customer competencies (CC) through the lens of a competence‐based view (CBV) framework, particularly focusing on their influence on green ...
Tongkyu Kim   +5 more
wiley   +1 more source

COMPARISON BETWEEN COMPETING RISKS VIA THE COPULA-GRAPHIC ESTIMATOR COMPARACIÓN ENTRE RIESGOS COMPETITIVOS VÍA EL ESTIMADOR CÓPULA-GRÁFICO

open access: yesRevista Colombiana de Estadística, 2011
The identifiability problem in competing risks associated to the dependence measure between the failure modes, can be solved by means of the copula-graphic estimator which assumes the copula function known. This paper compares, through a simulation study,
Yáñez Sergio   +3 more
doaj  

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