Results 61 to 70 of about 17,511,424 (267)

Multivariate measurement error models using finite mixtures of skew-Student t distributions

Journal of Multivariate Analysis, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Celso Rômulo Barbosa Cabral, Victor Hugo Lachos, Camila Borelli Zeller   +2 more
openaire   +3 more sources

Van Zwet ordering and the Ferreira-Steel family of skewed distributions [PDF]

There are several procedures to construct a skewed distribution. One of these procedures is based on a symmetric distribution that will be distorted by a skewed distribution defined on (0; 1). This proposal stems from Arellano-Valle et al.
Klein, Ingo
core  

Systemic Extracerebral Atherosclerotic Burden and Dementia Risk After Incident Stroke

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Stroke survivors are at increased risk of dementia, but clinically accessible markers of risk heterogeneity remain limited. Previous studies have largely examined atherosclerotic disease in individual vascular beds rather than the overall burden of systemic extracerebral atherosclerosis.
Zhexuan Yu, Tianxue Chen, Wei Jin, Weifeng Jin, Haitong Wan   +4 more
wiley   +1 more source

Asymptotic Confidence Intervals for the Mean with Increased Finite-Sample Coverage Probabilities

Mathematics
We consider a Student process based on independent copies of a random variable X. If X is in the domain of attraction of the normal law (DAN), a weighted version of the Student process is known to follow a functional Central Limit Theorem (FCLT ...
Shivani Bhardwaj, Jervis Gallanosa, Yuliya V. Martsynyuk   +2 more
doaj   +1 more source

The Beta-Hyperbolic Secant (BHS) Distribution [PDF]

The shape of a probability distribution is often summarized by the distribution's skewness and kurtosis. Starting from a symmetric parent density f on the real line, we can modify its shape (i.e.
Fischer, Matthias J., Vaughan, David
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Developing and Evaluating a Laboratory‐Based Frailty Index for the Prediction of Long‐Term Health Outcomes in Systemic Lupus Erythematosus

Arthritis Care &Research, EarlyView.
Objective We aimed to construct and evaluate the first laboratory‐based frailty index (FI‐Lab) for predicting adverse outcomes in systemic lupus erythematosus (SLE) and to compare its predictive ability to that of an existing clinical FI. Methods We used data from a single‐center prospective cohort of adult patients with SLE whose baseline visit ...
Grace Burns, Samuel D. Searle, Alexandra Legge   +2 more
wiley   +1 more source

Estimation and Prediction of Commodity Returns Using Long Memory Volatility Models

Risks
Modelling the volatility of commodity prices and creating more reliable models for estimating and forecasting commodity price returns are crucial.
Kisswell Basira, Lawrence Dhliwayo, Knowledge Chinhamu, Retius Chifurira, Florence Matarise   +4 more
doaj   +1 more source

Evaluating the performance of the Generalized Hyperbolic skew Student t-distribution in modeling risk via simulation studies

, 2023
Abstract The exponential-polynomial tail of the generalized hyperbolic skew Student-t distribution allows it to handle volatility asymmetry, heavy-semi heavy tails, and substantial skewness, thus the distribution has been found to be superiority in modelling volatility and extreme tail risk in comparison to competing distributions.
openaire   +1 more source

Portfolio Management under Asymmetric Dependence and Distribution [PDF]

Aim of our paper is to analyze the enhancement of portfolio management by using more sophisticated assumptions about distributions and dependencies of stock returns.
Peter Reichling, Stefan Hlawatsch
core  

Inside student recruitment 2019: Findings of the ISE recruitment survey [PDF]

, 2019
Findings of the 2019 Institute of Student Employers recruitment ...
Institute of Student Employers
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