Results 1 to 10 of about 2,982,449 (215)

Smoothed Analysis for the Conjugate Gradient Algorithm [PDF]

open access: diamond, 2016
The purpose of this paper is to establish bounds on the rate of convergence of the conjugate gradient algorithm when the underlying matrix is a random positive definite perturbation of a deterministic positive definite matrix.
Menon, Govind, Trogdon, Thomas
core   +3 more sources

Temporal gradient analysis of blood glucose responses to non-standard physical activity: a free-living study in type 1 diabetes [PDF]

open access: yesFrontiers in Sports and Active Living
IntroductionDaily physical activity (PA) impacts blood glucose (BG) in individuals with Type 1 Diabetes Mellitus (T1DM), with effects varying by intensity, duration, and timing.
Ahmad Bilal   +4 more
doaj   +2 more sources

Quantifying the effects of ecological constraints on trait expression using novel trait‐gradient analysis parameters [PDF]

open access: yesEcology and Evolution, 2018
Complex processes related to biotic and abiotic forces can impose limitations to assembly and composition of plant communities. Quantifying the effects of these constraints on plant functional traits across environmental gradients, and among communities,
Gianluigi Ottaviani   +3 more
doaj   +2 more sources

GALS – Gradient Analysis by Least Squares [PDF]

open access: yesAnnales Geophysicae, 2008
We present a method, GALS (Gradient Analysis by Least Squares) for estimating the gradient of a physical field from multi-spacecraft observations.
M. Hamrin   +4 more
doaj   +5 more sources

Shear-Wave Elastography Gradient Analysis of Newly Diagnosed Breast Tumours: A Critical Analysis [PDF]

open access: yesDiagnostics
Background: A better understanding of the peritumoral stroma changes due to tumour invasion using non-invasive diagnostic methods may improve the differentiation between benign and malignant breast lesions.
Johannes Deeg   +8 more
doaj   +2 more sources

Changes in plant cover of a mire in southern Karelia, Russia over 50 years following drainage [PDF]

open access: yesMires and Peat, 2021
Long-term monitoring of middle taiga wetland vegetation has been undertaken at the Kindasovo Forest and Mire Research Station, which is located within the Koivu-Lambasuo Nature Reserve in southern Karelia (north-west Russia).
Svetlana I. Grabovik   +2 more
doaj   +1 more source

Gradient-Oriented Prioritization in Meta-Learning for Enhanced Few-Shot Fault Diagnosis in Industrial Systems

open access: yesApplied Sciences, 2023
In this paper, we propose the gradient-oriented prioritization meta-learning (GOPML) algorithm, a new approach for few-shot fault diagnosis in industrial systems.
Dexin Sun, Yunsheng Fan, Guofeng Wang
doaj   +1 more source

Quantitative Biofacies Analysis to Identify Relationships and Refine Controls on Paleosol Development, Prince Creek Formation, North Slope Alaska, USA

open access: yesGeosciences, 2021
Late Cretaceous coastal plain deposits of the Prince Creek Formation (PCF) offer a rare glimpse into an ancient, high-latitude, arctic greenhouse ecosystem for which there is no modern analog.
James R. Bonelli, Peter P. Flaig
doaj   +1 more source

Systematically evaluating and integrating evidence in National Ambient Air Quality Standards reviews

open access: yesGlobal Epidemiology, 2020
As part of the review process for the National Ambient Air Quality Standards (NAAQS), the United States Environmental Protection Agency (US EPA) conducts systematic reviews and assesses causal relationships between air pollutant exposures and human ...
Julie E. Goodman   +3 more
doaj   +1 more source

The species chromatogram, a new graphical method to represent, characterize, and compare the ecological niches of different species

open access: yesEcology and Evolution, 2022
The ecological niche sensu Hutchinson is defined as the set of environmental conditions allowing a species to grow, maintain, and reproduce. This conception of the niche, which is assimilated to a p‐dimensional hypervolume, with p representing all ...
Loïck Kléparski, Grégory Beaugrand
doaj   +1 more source

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