Results 141 to 150 of about 3,305 (304)

Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni   +2 more
wiley   +1 more source

A partial envelope approach for modelling multivariate spatial‐temporal data

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In the new era of big data, modelling multivariate spatial‐temporal data is a challenging task due to both the high dimensionality of the features and complex associations among the responses across different locations and time points.
Reisa Widjaja   +3 more
wiley   +1 more source

Integrals of Bessel functions

open access: yes, 1962
Integrals of Bessel Functions concerns definite and indefinite integrals, the evaluation of which is necessary to numerous applied problems. A massive compendium of useful information, this volume represents a resource for applied mathematicians in many ...
Luke, Yudell Leo
core  

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

open access: yes, 2022
Hepatology, EarlyView.
Robert J. Fontana   +6 more
wiley   +1 more source

On Pierpont’s definition of integrals [PDF]

open access: yesBulletin of the American Mathematical Society, 1916
openaire   +2 more sources

Stochastic Gradient Descent in High Dimensions for Multi‐Spiked Tensor PCA

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We study the high‐dimensional dynamics of online stochastic gradient descent (SGD) for the multi‐spiked tensor model. This multi‐index model arises from the tensor principal component analysis (PCA) problem with multiple spikes, where the goal is to estimate the unknown signal vectors within the N$N$‐dimensional unit sphere through maximum ...
Gérard Ben Arous   +2 more
wiley   +1 more source

Multiple Integrals

open access: yes, 2017
The problem of definite integral and differential equation computation is still a significant part of many scientific branches and the solution of integral calculus tasks can be found in many industrial fields too.
Valešová, Nikola
core  

Green Human Resource Management (GHRM) and Environment Social Governance (ESG): A Systematic Literature Review

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This paper presents a systematic literature review exploring the intersection of Green Human Resource Management (GHRM) and Environmental, Social, and Governance (ESG) criteria. The study synthesizes current research, identifies prevailing trends, and highlights gaps within this emerging field.
Zile Huma   +3 more
wiley   +1 more source

The Definite Integrals of Cauchy and Riemann

open access: yes, 2017
Rigorous attempts to define the definite integral began in earnest in the early 1800\u27s. One of the pioneers in this development was A. L. Cauchy (1789-1857).
Ruch, Dave
core  

A practical guide to species trend detection with unstructured data using local frequency scaling (Frescalo)

open access: yesEcography, EarlyView.
Accurately measuring biodiversity change remains a central challenge in ecology. Beyond the general idea of quantifying temporal species frequency changes, several sampling‐related biases in data collection remain key methodological challenges to consider. Long‐term standardized ecological data are rare, and most available datasets exhibit considerable
Romain Goury   +7 more
wiley   +1 more source

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