Results 21 to 30 of about 2,133,508 (317)

From Topology to Generalised Dimensional Reduction [PDF]

open access: yes, 1996
In the usual procedure for toroidal Kaluza-Klein reduction, all the higher-dimensional fields are taken to be independent of the coordinates on the internal space.
Lavrinenko, I. V., Lu, H., Pope, C. N.
core   +2 more sources

Thickness Distribution Prediction for Tectonically Deformed Coal with a Deep Belief Network: A Case Study

open access: yesEnergies, 2020
Thickness of tectonically deformed coal (TDC) has positive correlations with the susceptible gas outbursts in coal mines. To predict the TDC thickness of the coalbed, we proposed a prediction method using seismic attributes based on the deep belief ...
Xin Wang, Tongjun Chen, Hui Xu
doaj   +1 more source

Investigation of Metastable Low Dimensional Halometallates

open access: yesMolecules, 2022
The solvothermal synthesis, structure determination and optical characterization of five new metastable halometallate compounds, [1,10-phenH][Pb3.5I8] (1), [1,10-phenH2][Pb5I12]·(H2O) (2), [1,10-phen][Pb2I4] (3), [1,10-phen]2[Pb5Br10] (4) and [1,10-phenH]
Navindra Keerthisinghe   +6 more
doaj   +1 more source

Dimensional Reduction for Conformal Blocks [PDF]

open access: yes, 2016
We consider the dimensional reduction of a CFT, breaking multiplets of the d-dimensional conformal group SO(d+1,1) up into multiplets of SO(d,1). This leads to an expansion of d-dimensional conformal blocks in terms of blocks in d-1 dimensions.
Hogervorst, Matthijs
core   +2 more sources

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

The dynamics of coset dimensional reduction [PDF]

open access: yes, 2006
The evolution of multiple scalar fields in cosmology has been much studied, particularly when the potential is formed from a series of exponentials. For a certain subclass of such systems it is possible to get `assisted` behaviour, where the presence of ...
B. S. DeWit   +4 more
core   +2 more sources

Vacuum polarization in two-dimensional static spacetimes and dimensional reduction [PDF]

open access: yes, 2002
We obtain an analytic approximation for the effective action of a quantum scalar field in a general static two-dimensional spacetime. We apply this to the dilaton gravity model resulting from the spherical reduction of a massive, non-minimally coupled ...
Akira Tomimatsu   +28 more
core   +2 more sources

Binary Codes Based on Non-Negative Matrix Factorization for Clustering and Retrieval

open access: yesIEEE Access, 2020
Traditional non-negative matrix factorization methods cannot learn the subspace from the high-dimensional data space composed of binary codes. One hopes to discover a compact parts-based representation composed of binary codes, which can uncover the ...
Jiang Xiong   +3 more
doaj   +1 more source

Mixing Autoencoder With Classifier: Conceptual Data Visualization

open access: yesIEEE Access, 2020
In this paper, a neural network that is able to form a low-dimensional topological hidden representation is explained. The neural network can be trained as an autoencoder, as a classifier or as a mixture of both and produces a different low-dimensional ...
Pitoyo Hartono
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

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