Results 1 to 10 of about 276 (185)

Novel pruning and truncating of the mixture of vine copula clustering models [PDF]

open access: yesScientific Reports, 2022
The mixture of the vine copula densities allows selecting the vine structure, the most appropriate type of parametric marginal distributions, and the pair-copulas individually for each cluster. Therefore, complex hidden dependence structures can be fully
Fadhah Amer Alanazi
doaj   +2 more sources

A Synthetic European Weather Dataset Based on Spatiotemporal Vine Copulas [PDF]

open access: yesScientific Data
A stochastic weather generator provides data by capturing statistical properties of observed weather patterns, enabling the simulation of realistic time series beyond the historic record.
Judith N. Claassen   +4 more
doaj   +2 more sources

Mixed vine copula flows for flexible modeling of neural dependencies [PDF]

open access: yesFrontiers in Neuroscience, 2022
Recordings of complex neural population responses provide a unique opportunity for advancing our understanding of neural information processing at multiple scales and improving performance of brain computer interfaces.
Lazaros Mitskopoulos   +2 more
doaj   +2 more sources

Application of vine copulas to dependence analysis of water quality data [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2022
In this study, using vine copulas and tree sequences, dependence analysis of groundwater quality variables (Total hardness (TH), Sodium adsorption ratio (SAR), Sodium percentage (Na %) and magnesium (Mg)) was performed.
Mohammad Nazeri Tahroudi   +3 more
doaj   +1 more source

Textile effluent treatment using Avocado seeds based activated carbon [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2022
In this study, using vine copulas and tree sequences, dependence analysis of groundwater quality variables (Total hardness (TH), Sodium adsorption ratio (SAR), Sodium percentage (Na %) and magnesium (Mg)) was performed.
Jacques Munyegaju   +4 more
doaj   +1 more source

Streamflow estimation at partially gaged sites using multiple-dependence conditions via vine copulas [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Reliable estimates of missing streamflow values are relevant for water resource planning and management. This study proposes a multiple-dependence condition model via vine copulas for the purpose of estimating streamflow at partially gaged sites.
K.-H. Ahn
doaj   +1 more source

Simulation of potential evapotranspiration values based on vine copula

open access: yesMeteorological Applications, 2021
Vine copula had a great impact on the study and analysis of dependence structures in various sciences. In multivariate analyses with dimensions of more than two variables, it is associated with computational complexities that solve vine copulas and these
Abbas Khashei‐Siuki   +3 more
doaj   +1 more source

MATVines: A vine copula package for MATLAB

open access: yesSoftwareX, 2021
Vine copulas provide a way to model a d-dimensional copula with bivariate building blocks and have been applied to a wide range of research topics. The MATVines package is presented, which implements vine copula functionalities for MATLAB. In particular,
Maximilian Coblenz
doaj   +1 more source

A continuous rainfall model based on vine copulas [PDF]

open access: yesHydrology and Earth System Sciences, 2015
Copulas have already proven their flexibility in rainfall modelling. Yet, their use is generally restricted to the description of bivariate dependence.
H. Vernieuwe   +3 more
doaj   +1 more source

A Mixture of Regular Vines for Multiple Dependencies

open access: yesJournal of Probability and Statistics, 2021
To uncover complex hidden dependency structures among variables, researchers have used a mixture of vine copula constructions. To date, these have been limited to a subclass of regular vine models, the so-called drawable vine, fitting only one type of ...
Fadhah Amer Alanazi
doaj   +1 more source

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