Results 101 to 110 of about 8,380,484 (273)

Gauge field corrections to 11-dimensional supergravity via dimensional reduction [PDF]

open access: yes, 2017
Using the fact that eleven-dimensional supergravity yields type IIA supergravity under dimensional reduction on a circle, we determine higher-derivative terms of 11-dimensional supergravity including the $ R^4 $, $ ({\partial {F_4}})^2 R^2 $ and $ ({\partial {F_4}})^4 $ terms.
arxiv   +1 more source

Dimensionality reduction for visualizing single-cell data using UMAP

open access: yesNature Biotechnology, 2018
Advances in single-cell technologies have enabled high-resolution dissection of tissue composition. Several tools for dimensionality reduction are available to analyze the large number of parameters generated in single-cell studies. Recently, a nonlinear
E. Becht   +7 more
semanticscholar   +1 more source

A Visual Interaction Framework for Dimensionality Reduction Based Data Exploration [PDF]

open access: yesarXiv, 2018
Dimensionality reduction is a common method for analyzing and visualizing high-dimensional data. However, reasoning dynamically about the results of a dimensionality reduction is difficult. Dimensionality-reduction algorithms use complex optimizations to reduce the number of dimensions of a dataset, but these new dimensions often lack a clear relation ...
arxiv  

Homology-Preserving Dimensionality Reduction via Manifold Landmarking and Tearing [PDF]

open access: yesarXiv, 2018
Dimensionality reduction is an integral part of data visualization. It is a process that obtains a structure preserving low-dimensional representation of the high-dimensional data. Two common criteria can be used to achieve a dimensionality reduction: distance preservation and topology preservation. Inspired by recent work in topological data analysis,
arxiv  

Dimensionality Reduction Algorithms on High Dimensional Datasets

open access: yesEmitter: International Journal of Engineering Technology, 2014
Classification problem especially for high dimensional datasets have attracted many researchers in order to find efficient approaches to address them. However, the classification problem has become very complicatedespecially when the number of possible ...
Iwan Syarif
doaj   +3 more sources

Thermal dimensional reduction and black hole evaporation

open access: yesPhysics Letters B, 2021
We analyze how a quantum-gravity-induced change in the number of thermal dimensions (through a modified dispersion relation) affects the geometry and the thermodynamics of a charged black hole.
I.P. Lobo, G.B. Santos
doaj  

On the existence of infinite-dimensional generalized harish-chandra modules [PDF]

open access: yesarXiv, 2018
We prove a general existence result for infinite-dimensional admissible (g;k)-modules, where g is a reductive finite-dimensional complex Lie algebra and k is a reductive in g algebraic subalgebra.
arxiv  

Planck-scale dimensional reduction without a preferred frame

open access: yesPhysics Letters B, 2014
Several approaches to quantum gravity suggest that the standard description of spacetime as probed at low-energy, with four dimensions, is replaced in the Planckian regime by a spacetime with a spectral dimension of two. The implications for relativistic
Giovanni Amelino-Camelia   +3 more
doaj   +1 more source

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