On the Equivalence of Gaussian Graphical Models Defined on Complete Bipartite Graphs

Fuente: arXiv
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Autor principal: Molkaraie, Mehdi
Formato: Preprint
Publicado: 2025
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author Molkaraie, Mehdi
author_facet Molkaraie, Mehdi
contents This paper introduces two Gaussian graphical models defined on complete bipartite graphs. We show that the determinants of the precision matrices associated with the models are equal up to scale, where the scale factor only depends on model parameters. In this context, we will introduce a notion of ``equivalence" between the two Gaussian graphical models. This equivalence has two key applications: first, it can significantly reduce the complexity of computing the exact value of the determinant, and second, it enables the derivation of closed-form expressions for the determinants in certain special cases.
format Preprint
id arxiv_https___arxiv_org_abs_2505_02384
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the Equivalence of Gaussian Graphical Models Defined on Complete Bipartite Graphs
Molkaraie, Mehdi
Information Theory
Computational Complexity
Computation
This paper introduces two Gaussian graphical models defined on complete bipartite graphs. We show that the determinants of the precision matrices associated with the models are equal up to scale, where the scale factor only depends on model parameters. In this context, we will introduce a notion of ``equivalence" between the two Gaussian graphical models. This equivalence has two key applications: first, it can significantly reduce the complexity of computing the exact value of the determinant, and second, it enables the derivation of closed-form expressions for the determinants in certain special cases.
title On the Equivalence of Gaussian Graphical Models Defined on Complete Bipartite Graphs
topic Information Theory
Computational Complexity
Computation
url https://arxiv.org/abs/2505.02384