Results 91 to 100 of about 300,325 (331)

Assessing the impact of artifact correction and artifact rejection on the performance of SVM- and LDA-based decoding of EEG signals

open access: yesNeuroImage
Numerous studies have demonstrated that eyeblinks and other large artifacts can decrease the signal-to-noise ratio of EEG data, resulting in decreased statistical power for conventional univariate analyses.
Guanghui Zhang, Steven J. Luck
doaj   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Learning curve assessment of rule use provides evidence for spared implicit sequence learning in a mouse model of mental retardation [PDF]

open access: yes, 2009
Humans with Fragile X Syndrome (FXS) have a mental retardation of which a notable characteristic is a weakness in recalling sequences of information. A mouse model of the disorder exists which exhibits behavioral and neurologic changes, but cognitive ...
Bauchwitz, Dr. Robert
core  

On the reach of perturbative descriptions for dark matter displacement fields

open access: yes, 2015
We study Lagrangian Perturbation Theory (LPT) and its regularization in the Effective Field Theory (EFT) approach. We evaluate the LPT displacement with the same phases as a corresponding $N$-body simulation, which allows us to compare perturbation ...
Baldauf, Tobias   +2 more
core   +1 more source

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

open access: yesAdvanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji   +5 more
wiley   +1 more source

Continuous Predictors of Pretest-Posttest Change: Highlighting the Impact of the Regression Artifact

open access: yesFrontiers in Applied Mathematics and Statistics, 2019
Researchers are often interested in exploring predictors of change, and commonly use a regression based model or a gain score analysis to compare degree of change across groups.
Linda Farmus   +2 more
doaj   +1 more source

Fact or artefact : the impact of measurement errors on the farm size - productivity relationship [PDF]

open access: yes
This paper revisits the role of land measurement error in the inverse farm size and productivity relationship. By making use of data from a nationally representative household survey from Uganda, in which self-reported land size information is ...
Carletto, Calogero   +2 more
core  

Lateral dual-energy radiography: Artifact error from rib and pelvic bone

open access: yesJournal of Bone and Mineral Research, 1992
Abstract A lateral projection of the lumbar spine with dual-energy radiography (DER) may be a more sensitive tool for the detection of vertebral demineralization than the standard anterior-posterior (AP) DER measurement. The lateral view allows measurement of the vertebral body and selective measurement of the central trabecular ...
R C, Rupich   +4 more
openaire   +2 more sources

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