Results 21 to 30 of about 281,586 (259)

Dimension reduction with expectation of conditional difference measure

open access: yesStatistical Theory and Related Fields, 2023
In this article, we introduce a flexible model-free approach to sufficient dimension reduction analysis using the expectation of conditional difference measure.
Wenhui Sheng, Qingcong Yuan
doaj   +1 more source

Modern Dimension Reduction [PDF]

open access: yes, 2021
83 pages, 36 figures, to appear in the Cambridge University Press Elements in Quantitative and Computational Methods for the Social Sciences ...
openaire   +3 more sources

A Review on Dimension Reduction [PDF]

open access: yesInternational Statistical Review, 2012
RésuméRésumer l'impact d'un nombre élevé de variables explicatives à celui d'un nombre réduit de combinaisons linéaires bien choisies constitue une façon efficace de réduire la dimension d'un problème. Cette réduction à un petit nombre de combinaisons linéaires est réalisée à partir d'hypothèses minimales sur la forme de la dépendance et jouit, par ...
Ma, Yanyuan, Zhu, Liping
openaire   +2 more sources

Quantile treatment effect estimation with dimension reduction

open access: yesStatistical Theory and Related Fields, 2020
Quantile treatment effects can be important causal estimands in evaluation of biomedical treatments or interventions for health outcomes such as medical cost and utilisation.
Ying Zhang   +3 more
doaj   +1 more source

Dimension and Dimensional Reduction in Quantum Gravity

open access: yesUniverse, 2019
If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed point in a way that makes the theory effectively two-dimensional.
Steven Carlip
doaj   +1 more source

Dimension Reduction

open access: yes, 2021
When data objects that are the subject of analysis using machine learning techniques are described by a large number of features (i.e. the data is high dimension) it is often beneficial to reduce the dimension of the data. Dimension reduction can be beneficial not only for reasons of computational efficiency but also because it can improve the accuracy
openaire   +3 more sources

Application of Dimension Reduction Methods for Stress Detection

open access: yesInternational Journal of Pioneering Technology and Engineering, 2023
Effective detection of stress situations plays an important role in combating it. This is the main source of motivation for research to identify and evaluate different psychological conditions.
Erhan Bergil
doaj   +1 more source

Aggregate Kernel Inverse Regression Estimation

open access: yesMathematics, 2023
Sufficient dimension reduction (SDR) is a useful tool for nonparametric regression with high-dimensional predictors. Many existing SDR methods rely on some assumptions about the distribution of predictors. Wang et al.
Wenjuan Li   +3 more
doaj   +1 more source

the Digital-Image Dimension Reduction Via Analysis of Principal component

open access: yesWasit Journal of Engineering Sciences, 2022
An Image with high-resolution is associated with huge size data space because each information of the image is arranged into 2D picture elements' values, each of them containing its associated value of the RGB bits.
rusul fadhil   +4 more
doaj   +1 more source

Spectral Dimension Reduction of Complex Dynamical Networks

open access: yesPhysical Review X, 2019
Dynamical networks are powerful tools for modeling a broad range of complex systems, including financial markets, brains, and ecosystems. They encode how the basic elements (nodes) of these systems interact altogether (via links) and evolve (nodes ...
Edward Laurence   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy