Results 11 to 20 of about 526,995 (214)

Dimensional reduction in the sky [PDF]

open access: yesPhysical Review D, 2013
We explore the cosmological implications of a mechanism found in several approaches to quantum-gravity, whereby the spectral dimension of spacetime runs from the standard value of 4 in the infrared (IR) to a smaller value in the ultraviolet (UV). Specifically, we invoke the picture where the phenomenon is associated with modified dispersion relations ...
João Magueijo   +4 more
openaire   +5 more sources

Deformed dimensional reduction

open access: yesGeometry & Topology, 2022
Since its first use by Behrend, Bryan, and Szendrői in the computation of motivic Donaldson-Thomas (DT) invariants of $\mathbb{A}_{\mathbb{C}}^3$, dimensional reduction has proved to be an important tool in motivic and cohomological DT theory. Inspired by a conjecture of Cazzaniga, Morrison, Pym, and Szendrői on motivic DT invariants, work of ...
Davison, Ben, Pădurariu, Tudor
openaire   +2 more sources

On the dimensional reduction procedure [PDF]

open access: yesNuclear Physics B, 2001
15 pages, Latex, enlarged discussion added in Sec 3 and typos corrected. Version to appear in Nucl.
Cognola, Guido, Zerbini, Sergio
openaire   +4 more sources

Dimensionality reduction methods [PDF]

open access: yesAdvances in Methodology and Statistics, 2005
In case one or more sets of variables are available, the use of dimensional reduction methods could be necessary. In this contest, after a review on the link between the Shrinkage Regression Methods and Dimensional Reduction Methods, authors provide a different multivariate extension of the Garthwaite's PLS approach (1994) where a simple linear ...
D'AMBRA L, AMENTA P, GALLO, Michele
openaire   +4 more sources

Rare desynchronization events in power grids: on data implementation and dimensional reductions

open access: yesJournal of Physics: Complexity, 2022
We discuss the frequency of desynchronization events in power grids for realistic data input. We focus on the role of time correlations in the fluctuating power production and propose a new method for implementing colored noise that reproduces non ...
Tim Ritmeester, Hildegard Meyer-Ortmanns
doaj   +1 more source

Emergence of time persistence in a data-driven neural network model

open access: yeseLife, 2023
Establishing accurate as well as interpretable models of network activity is an open challenge in systems neuroscience. Here, we infer an energy-based model of the anterior rhombencephalic turning region (ARTR), a circuit that controls zebrafish swimming
Sebastien Wolf   +4 more
doaj   +1 more source

Deep Feature Selection for Anomaly Detection Based on Pretrained Network and Gaussian Discriminative Analysis

open access: yesIEEE Open Journal of Instrumentation and Measurement, 2022
Deep learning neural network serves as a powerful tool for visual anomaly detection (AD) and fault diagnosis, attributed to its strong abstractive interpretation ability in the representation domain.
Jie Lin, Song Chen, Enping Lin, Yu Yang
doaj   +1 more source

Compressing Fisher Vector for Robust Face Recognition

open access: yesIEEE Access, 2017
One major topic for robust face recognition could be the efficient encoding of facial descriptors. Among various encoders, Fisher vector (FV) is one of the probabilistic methods that yield promising results.
Hongjun Wang, Jiani Hu, Weihong Deng
doaj   +1 more source

Weighted Kernel Entropy Component Analysis for Fault Diagnosis of Rolling Bearings

open access: yesSensors, 2017
This paper presents a supervised feature extraction method called weighted kernel entropy component analysis (WKECA) for fault diagnosis of rolling bearings.
Hongdi Zhou   +7 more
doaj   +1 more source

SAELGMDA: Identifying human microbe–disease associations based on sparse autoencoder and LightGBM

open access: yesFrontiers in Microbiology, 2023
IntroductionIdentification of complex associations between diseases and microbes is important to understand the pathogenesis of diseases and design therapeutic strategies.
Feixiang Wang   +5 more
doaj   +1 more source

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