Link:

https://ijnaa.semnan.ac.ir/article_5946.html

Publisher:

International Journal of Nonlinear Analysis and Applications

Abstract:

The matrix-variate generalized hyperbolic distribution is heavy-tailed mixed continuous skewed
probability distribution. This distribution has multi applications in the field of economics, risk
management, especially in stock modeling.
This paper includes the estimate of the location matrix θ for the multivariate partial linear
regression model, which is one of the multivariate semiparametric regression models when the random
error follows a matrix-variate generalized hyperbolic distribution in the Bayesian technique depending
on non-informative and informative prior information, estimating the location matrix under balanced
and unbalanced loss function and the shape parameters (λ, ψ, ν), skewness matrix (δ), the scale
matrix (Σ) are known. In addition, estimation the smoothing parameter by a proposed method
depending on the rule of thumb, the proposed kernel function depending on the mixed Gaussian
kernel. the researchers concluded when non-informative and informative prior information is available
that the posterior probability distribution for the location matrix θ is a matrix-variate generalized
hyperbolic distribution, through the experimental side, it was found that the proposed kernel function
is overriding than the Gaussian kernel function in estimate the location matrix and under informative
prior information.