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- W3100237263 abstract "A Copula density estimation method that is based on a finite mixture of heterogeneous parametric copula densities is proposed here. More specifically, the mixture components are Clayton, Frank, Gumbel, T, and normal copula densities, which are capable of capturing lower tail,strong central, upper tail, heavy tail, and symmetrical elliptical dependence, respectively. The model parameters are estimated by an interior-point algorithm for the constrained maximum likelihood problem. The interior-point algorithm is compared with the commonly used EM algorithm. Simulation and real data application show that the proposed approach is effective to model complex dependencies for data in dimensions beyond two or three." @default.
- W3100237263 created "2020-11-23" @default.
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- W3100237263 date "2019-06-07" @default.
- W3100237263 modified "2023-10-11" @default.
- W3100237263 title "Copula density estimation by finite mixture of parametric copula densities" @default.
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- W3100237263 doi "https://doi.org/10.1080/03610918.2019.1622720" @default.
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