Results 21 to 30 of about 2,844,453 (243)
Bivariate copulas on the exponentially weighted moving average control chart [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2016 This paper proposes four types of copulas on the Exponentially Weighted Moving Average (EWMA) control chart when observations are from an exponential distribution using a Monte Carlo simulation approach. The performance of the control chart is based on
Sasigarn Kuvattana +3 more
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Ekoist Journal of Econometrics and Statistics, 2023 In this study, compensation payments for Turkish motor vehicles’ compulsory third-party liability insurance between 2018 and 2022 are modeled from a comparative perspective using regression-based and copula-based multivariate statistical methods.
Övgücan Karadağ Erdemir
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Bivariate Analysis of Extreme Precipitation Using Copula Functions in Arid and Semi-Arid Regions
Atmosphere, 2023 This study analyzed extreme precipitation events, using daily rainfall data for 1966–2015. A Mann–Kendall trend test was used to evaluate trends in extreme precipitation, copula functions were applied to compute the joint return periods of extreme events,
Zeynab Pabaghi +4 more
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Pair-copula constructions of multiple dependence [PDF]
, 2006 Building on the work of Bedford, Cooke and Joe, we show how multivariate data, which exhibit complex patterns of dependence in the tails, can be modelled using a cascade of pair-copulae, acting on two variables at a time.
Aas, Kjersti +3 more
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The application of the hybrid copula-GARCH approach in the simulation of extreme discharge values
Applied Water Science, 2022 Statistical analysis and simulation of annual maximum discharge values, while considering the corresponding maximum daily rainfall, provide a comprehensive view of flood management.
Mohammad Nazeri Tahroudi +2 more
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Hydrology Research, 2020 Copulas are appropriate tools in drought frequency analysis. However, uncertainties originating from copulas in such frequency analysis have not received significant consideration. This study aims to develop a drought severity-areal extent-frequency (SAF)
Zhanling Li +3 more
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Testing the bivariate distribution of daily equity returns using copulas: an application to the Spanish stock market [PDF]
, 2005 In this paper we deal with the identification of dependencies between time series of equity returns. Marginal distribution functions are assumed to be known, and a bivariate chi-square test of fit is applied in a fully parametric copula approach. Several
Roch, Oriol, Alegre Escolano, Antonio
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Estimation of Copula Density Using the Wavelet Transform
مجلة بغداد للعلومThis paper proposes a new method to estimate the copula density function using wavelet decomposition as a nonparametric method, to obtain more accurate results and address the issue of boundary effects that nonparametric estimation methods suffer from ...
Fatimah Hashim Falhi +1 more
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A method of moments to estimate bivariate survival functions: the copula approach
Statistica, 2013 In this paper we discuss the problem on parametric and non parametric estimation of the distributions generated by the Marshall-Olkin copula. This copula comes from the Marshall-Olkin bivariate exponential distribution used in reliability analysis.
Silvia Angela Osmetti +1 more
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Minimax Lower Bounds for Uniform Estimation of Covariate-Dependent Copula Parameters
MathematicsLocal likelihood methods are widely used to estimate calibration functions in conditional copula models. Recent work has established uniform stochastic equicontinuity and uniform convergence rates for local likelihood estimators of covariate-dependent ...
Mathias Nthiani Muia +2 more
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