Results 141 to 150 of about 564,115 (361)

Rethinking Barrier Dynamics in Sustainable Supply Chain Management: A Moderated Mediation Analysis

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Sustainability barriers are often analyzed in isolation, yet their interactions shape supply chain sustainability collaboration (SCSC) and triple bottom line (TBL) performance. Drawing on stakeholder and coordination theories, this study examines how internal and external barriers jointly impact SCSC and, in turn, economic, social, and ...
Alina Marculetiu, Cigdem Ataseven, Injazz J. Chen   +2 more
wiley   +1 more source

A Randomized Algorithm for Approximating the Log Determinant of a\n Symmetric Positive Definite Matrix [PDF]

, 2015
Christos Boutsidis, Petros Drineas, Prabhanjan Kambadur, Eugenia-Maria Kontopoulou, Anastasios Zouzias   +4 more
openalex   +1 more source

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

Deep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang, Maohui Wang, Ning Wang, Yixin Shen, Xuzhen He   +4 more
wiley   +1 more source

Positive definite solution of the matrix equation X=Q+A^H(I⊗X-C)^(-δ)A

, 2010
Guozhu Yao, Anping Liao, Xuefeng Duan
openalex   +2 more sources

The in‐hospital administration of sacubitril/valsartan in acute myocardial infarction: A meta‐analysis

ESC Heart Failure, Volume 12, Issue 2, Page 998-1012, April 2025.
In patients with Acute Myocardial Infarction related heart failure, the in‐hospital administration of ARNIs was associated with a reduced risk of MACEs and re‐hospitalizations for heart failure, as well as cardiac remodeling, compared to standard therapy.
Gianluca Di Pietro, Riccardo Improta, Paolo Severino, Andrea D'Amato, Lucia Ilaria Birtolo, Ovidio De Filippo, Antonio Lattanzio, Raffaele De Cristofaro, Giacchino Galardo, Fabrizio D'Ascenzo, Roberto Badagliacca, Gennaro Sardella, Maurizio Volterrani, Francesco Fedele, Carmine Dario Vizza, Massimo Mancone   +15 more
wiley   +1 more source

Symmetric Positive Semi-Definite Fourier Estimator of Spot Covariance Matrix with High Frequency Data

Risks
This paper proposes a nonparametric estimator of the spot volatility matrix with high-frequency data. Our newly proposed Positive Definite Fourier (PDF) estimator produces symmetric positive semi-definite estimates and is consistent with a suitable ...
Jiro Akahori, Reika Kambara, Nien-Lin Liu, Maria Elvira Mancino, Tommaso Mariotti, Yukie Yasuda   +5 more
doaj   +1 more source

Iterative Methods for Linear Equations with Symmetric Positive Definite Matrix [PDF]

, 1961
David W. Martin
openalex   +1 more source

Seismic Structural Response and Loss Estimation for Dense Urban Districts Using Neural Network Parameterized Gaussian Process

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Earthquakes pose a major threat to urban areas, causing fatalities, injuries, and significant economic losses. This study proposes a Gaussian process parametrized by deep neural networks (DNN–GP) as an efficient surrogate for assessing seismic losses of building structures at a regional scale.
Byeongseong Choi, Sang‐ri Yi, Taeyong Kim   +2 more
wiley   +1 more source

Canonical form of positive definite matrix

, 2018
The fundamental problem of graph isomorphism is to check if two graphs are isomorphic. This problem has attracted recent interest and there are very efficient programs for solving that problem. For other combinatorial structures, there are ways for reducing the problem to a graph.
openaire   +1 more source

Integral representations of positive definite matrix-valued distributions on cylinders [PDF]

, 1989
Jürgen Friedrich
openalex   +1 more source