Results 201 to 210 of about 94,299 (278)

Vine Copula-Based Classifiers with Applications

open access: yesJournal of Classification
Abstract The vine pair-copula construction can be used to fit flexible non-Gaussian multivariate distributions to a mix of continuous and discrete variables. With multiple classes, fitting univariate distributions and a vine to each class lead to posterior probabilities over classes that can be used for discriminant analysis.
Özge Şahin, Harry Joe
semanticscholar   +4 more sources

Modeling vine-production function: An approach based on Vine Copula

Physica A: Statistical Mechanics and its Applications, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Constantino, Michel   +4 more
openaire   +1 more source

On copula-based collective risk models: from elliptical copulas to vine copulas

Scandinavian Actuarial Journal, 2020
Several collective risk models have recently been proposed by relaxing the widely used but controversial assumption of independence between claim frequency and severity.
Rosy Oh, Jae Youn Ahn, Woojoo Lee
openaire   +1 more source

An Energy Storage Planning Method Based on the Vine Copula Model with High Percentage of New Energy Consumption

Energy Engineering
: To adapt to the uncertainty of new energy, increase new energy consumption, and reduce carbon emissions, a high-voltage distribution network energy storage planning model based on robustness-oriented planning and distributed new energy consumption is ...
Jiaqing Wang   +3 more
semanticscholar   +1 more source

Robust Portfolio Selection Using Vine Copulas

SSRN Electronic Journal, 2020
Portfolio optimization problems involving Conditional Value-at-Risk (CVaR) are often computationally intractable and require complete information about the distribution of returns, which is rarely available in practice. These difficulties are compounded when the portfolio contains a lot of assets.
Yingwei Han, Ping Li
openaire   +1 more source

TVineSynth: A Truncated C-Vine Copula Generator of Synthetic Tabular Data to Balance Privacy and Utility

International Conference on Artificial Intelligence and Statistics
We propose TVineSynth, a vine copula based synthetic tabular data generator, which is designed to balance privacy and utility, using the vine tree structure and its truncation to do the trade-off.
Elisabeth Griesbauer   +3 more
semanticscholar   +1 more source

Selection of Vine Copulas

2013
Vine copula models have proven themselves as a very flexible class of multivariate copula models with regard to symmetry and tail dependence for pairs of variables. The full specification of a vine model requires the choice of a vine tree structure, the copula families for each pair copula term and their corresponding parameters.
Claudia Czado   +2 more
openaire   +1 more source

Vine copula MFPCA residual control chart for sparse multivariate functional data

Communications in statistics. Simulation and computation
We introduce a multivariate functional principal component analysis (MFPCA) residual control chart for multivariate functional data. Our method utilizes the vine copula technique and is applied to high-frequency financial data.
Jong-Min Kim, Il Do Ha
semanticscholar   +1 more source

Gaussian Process with Vine Copula-Based Context Modeling for Contextual Multi-Armed Bandits

Mathematics
We propose a novel contextual multi-armed bandit (CMAB) framework that integrates copula-based context generation with Gaussian Process (GP) regression for reward modeling, addressing complex dependency structures and uncertainty in sequential decision ...
Jong‐Min Kim
semanticscholar   +1 more source

An Integrated Goodness-of-Fit and Vine Copula Framework for Windspeed Distribution Selection and Turbine Power-Curve Assessment in New South Wales and Southern East Queensland

Atmosphere
Accurate modelling of near surface wind speeds is essential for robust resource assessment, turbine design, and grid integration. This study presents a unified framework comparing four candidate marginal distributions—Weibull, Gamma, Lognormal, and ...
Khaled Haddad
semanticscholar   +1 more source

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