[HTML][HTML] Computation of the von Neumann entropy of large matrices via trace estimators and rational Krylov methods

M Benzi, M Rinelli, I Simunec - Numerische Mathematik, 2023 - Springer
We consider the problem of approximating the von Neumann entropy of a large, sparse,
symmetric positive semidefinite matrix A, defined as tr (f (A)) where f (x)=-x log x. After …

On the similarity between von Neumann graph entropy and structural information: Interpretation, computation, and applications

X Liu, L Fu, X Wang, C Zhou - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The von Neumann graph entropy is a measure of graph complexity based on the Laplacian
spectrum. It has recently found applications in various learning tasks driven by the …

[HTML][HTML] Estimating the trace of matrix functions with application to complex networks

RD Fuentes, M Donatelli, C Fenu, G Mantica - Numerical Algorithms, 2023 - Springer
The approximation of trace (f (Ω)), where f is a function of a symmetric matrix Ω, can be
challenging when Ω is exceedingly large. In such a case even the partial Lanczos …

RWE: A Random Walk Based Graph Entropy for the Structural Complexity of Directed Networks

C Zhang, C Deng, L Fu, X Wang… - … on Network Science …, 2024 - ieeexplore.ieee.org
This paper studies a graph entropy measure to characterize the structural complexity of
directed networks. Since the von Neumann entropy (VNE) has found applications in many …

Bridging the gap between von Neumann graph entropy and structural information: Theory and applications

X Liu, L Fu, X Wang - Proceedings of the Web Conference 2021, 2021 - dl.acm.org
The von Neumann graph entropy (VNGE) is a measure of graph complexity based on the
Laplacian spectrum. It has recently found applications in various learning tasks driven by …

Approximation of Matrix Functions Arising in Physics and Network Science: Theoretical and Computational Aspects

M Rinelli - 2024 - ricerca.sns.it
Many applications in physics and network science require the computation of quantities
related to certain matrix functions. In many cases, a straightforward way to proceed is by …

Ego-based entropy measures for structural representations on graphs

G Dasoulas, G Nikolentzos, K Seaman… - ICASSP 2021-2021 …, 2021 - ieeexplore.ieee.org
Machine learning on graph-structured data has attracted high research interest due to the
emergence of Graph Neural Networks (GNNs). Most of the proposed GNNs are based on …

Towards Expressive Graph Neural Networks: Theory, Algorithms, and Applications

G Dasoulas - 2022 - theses.hal.science
As the technological evolution of machine learning is accelerating nowadays, data plays a
vital role in building intelligent models, being able to simulate phenomena, predict values …

Approximation de l'entropie de von Neumann de graphes pour une analyse de vulnérabilité

T Averty, D Dare-Emzivat, AO Boudraa, Y Preaux - 2022 - sam.ensam.eu
Dans ce travail, nous exploitons la variation de l'entropie de von Neumann de graphes
comme mesure de vulnérabilité en proposant une nouvelle forme approchée de cette …

Randomized Numerical Linear Algebra Approaches for Approximating Matrix Functions

EMS Kontopoulou - 2020 - search.proquest.com
This work explores how randomization can be exploited to deliver sophisticated algorithms
with provable bounds for:(i) The approximation of matrix functions, such as the log …