Mathematics, Volume (10), No (22), Year (2022-11) , Pages (4232-4232)

Title : ( High-Dimensional Precision Matrix Estimation through GSOS with Application in the Foreign Exchange Market )

Authors: A. Kheyri , A. Bekker , Mohammad Arashi ,

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Abstract

This article studies the estimation of the precision matrix of a high-dimensional Gaussian network. We investigate the graphical selector operator with shrinkage, GSOS for short, to maximize a penalized likelihood function where the elastic net-type penalty is considered as a combination of a norm-one penalty and a targeted Frobenius norm penalty. Numerical illustrations demonstrate that our proposed methodology is a competitive candidate for high-dimensional precision matrix estimation compared to some existing alternatives. We demonstrate the relevance and efficiency of GSOS using a foreign exchange markets dataset and estimate dependency networks for 32 different currencies from 2018 to 2021

Keywords

, exchange rate; Gaussian graphical model; graphical elastic net; high, penalized log, likelihood; precision matrix estimation; ridge estimation
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@article{paperid:1092190,
author = {A. Kheyri and A. Bekker and Arashi, Mohammad},
title = {High-Dimensional Precision Matrix Estimation through GSOS with Application in the Foreign Exchange Market},
journal = {Mathematics},
year = {2022},
volume = {10},
number = {22},
month = {November},
issn = {2227-7390},
pages = {4232--4232},
numpages = {0},
keywords = {exchange rate; Gaussian graphical model; graphical elastic net; high-penalized log-likelihood; precision matrix estimation; ridge estimation},
}

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%0 Journal Article
%T High-Dimensional Precision Matrix Estimation through GSOS with Application in the Foreign Exchange Market
%A A. Kheyri
%A A. Bekker
%A Arashi, Mohammad
%J Mathematics
%@ 2227-7390
%D 2022

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