Salt stress and senescence: identification of cross-talk regulatory components

AD Allu, AM Soja, A Wu, J Szymanski… - Journal of …, 2014 - academic.oup.com
Leaf senescence is an active process with a pivotal impact on plant productivity. It results
from extensive signalling cross-talk coordinating environmental factors with intrinsic age …

Complex networks, gene expression and cancer complexity: a brief review of methodology and applications

AC Iliopoulos, G Beis, P Apostolou… - Current …, 2020 - ingentaconnect.com
In this brief survey, various aspects of cancer complexity and how this complexity can be
confronted using modern complex networks' theory and gene expression datasets, are …

MPTP activates ASK1–p38 MAPK signaling pathway through TNF-dependent Trx1 oxidation in parkinsonism mouse model

A Ray, N Sehgal, S Karunakaran, G Rangarajan… - Free Radical Biology …, 2015 - Elsevier
Activation of apoptosis signal-regulating kinase 1 (ASK1)–p38 MAPK death signaling
cascade is implicated in the death of dopaminergic neurons in substantia nigra in …

The shape of partial correlation matrices

R Artner, PP Wellingerhof, G Lafit… - … in Statistics-Theory …, 2022 - Taylor & Francis
The correlational structure of a set of variables is often conveniently described by the
pairwise partial correlations as they contain the same information as the Pearson …

Reproducibility and robustness of graph measures of the associative-semantic network

Y Wang, N Nelissen, K Adamczuk, AS De Weer… - PloS one, 2014 - journals.plos.org
Graph analysis is a promising tool to quantify brain connectivity. However, an essential
requirement is that the graph measures are reproducible and robust. We have studied the …

Improving the graphical lasso estimation for the precision matrix through roots of the sample covariance matrix

V Avagyan, AM Alonso, FJ Nogales - Journal of Computational …, 2017 - Taylor & Francis
In this article, we focus on the estimation of a high-dimensional inverse covariance (ie,
precision) matrix. We propose a simple improvement of the graphical Lasso (glasso) …

A new gene regulatory network model based on BP algorithm for interrogating differentially expressed genes of Sea Urchin

L Liu, T Zhao, M Ma, Y Wang - SpringerPlus, 2016 - Springer
Background Computer science and mathematical theories are combined to analyze the
complex interactions among genes, which are simplified to a network to establish a …

Precision matrix estimation under data contamination with an application to minimum variance portfolio selection

V Avagyan, X Mei - Communications in Statistics-Simulation and …, 2022 - Taylor & Francis
In this article, we consider the problem of estimating the precision matrix when the sample
data contains cellwise contamination. For the widely employed methodologies (eg Graphical …

D-trace estimation of a precision matrix using adaptive lasso penalties

V Avagyan, AM Alonso, FJ Nogales - Advances in Data Analysis and …, 2018 - Springer
The accurate estimation of a precision matrix plays a crucial role in the current age of high-
dimensional data explosion. To deal with this problem, one of the prominent and commonly …

D-trace estimation of a precision matrix with eigenvalue control

V Avagyan - Communications in Statistics-Simulation and …, 2021 - Taylor & Francis
The estimation of a precision matrix has an important role in several research fields. In high
dimensional settings, one of the most prominent approaches to estimate the precision matrix …