Parameter Estimation of Some Archimedean Copulas Based on Minimum Cramér-von-Mises Distance
author
Abstract:
The purpose of this paper is to introduce a new estimation method for estimating the Archimedean copula dependence parameter in the non-parametric setting. The estimation of the dependence parameter has been selected as the value that minimizes the Cramér-von-Mises distance which measures the distance between Empirical Bernstein Kendall distribution function and true Kendall distribution function. A Monte Carlo study is performed to measure the performance of the new estimator and compared to conventional estimation methods. In terms of estimation performance, simulation results show that the proposed Minumum Cramér-von-Mises estimation method has a good performance for low dependence and small sample size when compared with the other estimation methods. The new minimum distance estimation of the dependence parameter is applied to model the dependence of two real data sets as illustrations.
similar resources
Multivariate parametric density estimation based on the modified Cramér-von Mises distance
In this paper, a novel distance-based density estimation method is proposed, which considers the overall density function in the goodness-of-fit. In detail, the parameters of Gaussian mixture densities are estimated from samples, based on the distance of the cumulative distributions over the entire state space. Due to the ambiguous definition of the standard multivariate cumulative distribution...
full textCramér-Von Mises Statistics for Discrete Distributions
The Cramér-von Mises family of goodness-of-fit statistics is a well-known group of statistics used to test fit to a continuous distribution. In this article we extend the family to provide tests for discrete distributions. The statistics examined are the analogues of those associated with the names of Cramér-von Mises, Watson and Anderson-Darling, called W , U and A respectively, and their comp...
full textSome Results on a Generalized Archimedean Family of Copulas
Durante et al. (2007) introduced a class of bivariate copulas depending on two generators which generalizes some known families such as the Archimedean copulas. In this paper we provide some result on properties of this family when the generators are certain univariate survival functions.
full textBayesian Estimation of the Von Mises Concentration Parameter
The von Mises distribution is a maximum entropy distribution. It corresponds to the distribution of an angle of a compass needle in a uniform magnetic eld of direction, , with concentration parameter,. The concentration parameter, , is the ratio of the eld strength to the temperature of thermal uctuations. Previously, we obtained a Bayesian estimator for the von Mises distribution parameters us...
full textOn Generators in Archimedean Copulas
This study after reviewing construction methods of generators in Archimedean copulas (AC), proposes several useful lemmas related with generators of AC. Then a new trigonometric Archimedean family will be shown which is based on cotangent function. The generated new family is able to model the low dependence structures.
full textEvaluating user simulations with the Cramér-von Mises divergence
User simulations are increasingly employed in the development and evaluation of spoken dialog systems. However, there is no accepted method for evaluating user simulations, which is problematic because the performance of new dialog management techniques is often evaluated on user simulations alone, not on real people. In this paper, we propose a novel method of evaluating user simulations. We v...
full textMy Resources
Journal title
volume 19 issue 1
pages 163- 183
publication date 2020-06
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023