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Ensemble Linear Subspace Analysis of High-Dimensional Data [PDF]

open access: yesEntropy, 2021
Regression models provide prediction frameworks for multivariate mutual information analysis that uses information concepts when choosing covariates (also called features) that are important for analysis and prediction.
S. Ejaz Ahmed, Saeid Amiri, Kjell Doksum
doaj   +2 more sources

Koopman Invariant Subspaces and Finite Linear Representations of Nonlinear Dynamical Systems for Control. [PDF]

open access: yesPLoS ONE, 2016
In this wIn this work, we explore finite-dimensional linear representations of nonlinear dynamical systems by restricting the Koopman operator to an invariant subspace spanned by specially chosen observable functions.
Steven L Brunton   +3 more
doaj   +6 more sources

Tensor local linear embedding with global subspace projection optimisation

open access: yesIET Computer Vision, 2022
In this paper, a novel tensor dimensionality reduction (TDR) approach is proposed, which maintains the local geometric structure of tensor data by tensor local linear embedding and explores the global feature by optimising global subspace projection ...
Guo Niu, Zhengming Ma
doaj   +1 more source

Gait recognition based on sparse linear subspace

open access: yesIET Image Processing, 2021
Gait recognition has broad application prospects in intelligent security monitoring. However, due to the variability of human walking states and the complexity of external conditions during sample collection, gait recognition is still facing many ...
Junqin Wen, Xiuhui Wang
doaj   +1 more source

A Comparative Analysis of Kernel Subspace Target Detectors for Hyperspectral Imagery

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Several linear and nonlinear detection algorithms that are based on spectral matched (subspace) filters are compared. Nonlinear (kernel) versions of these spectral matched detectors are also given and their performance is compared with linear versions ...
Kwon Heesung, Nasrabadi Nasser M
doaj   +2 more sources

Towards deterministic subspace identification for autonomous nonlinear systems [PDF]

open access: yes, 2015
The problem of identifying deterministic autonomous linear and nonlinear systems is studied. A specific version of the theory of deterministic subspace identification for discrete-time autonomous linear systems is developed in continuous time.
Astolfi, A, Padoan, A
core   +1 more source

Intra-class Low-Rank Subspace Learning for Face Recognition [PDF]

open access: yesJisuanji kexue yu tansuo, 2022
As a simple and effective tool, linear regression has been widely used in pattern recognition. However, the direct projection from high-dimensional data to binary labels may not be flexible enough and suitable data rep-resentation for classification ...
CAI Yuhong, WU Xiaojun
doaj   +1 more source

Sobolev subspaces of nowhere bounded functions [PDF]

open access: yes, 2016
We prove that in any Sobolev space which is subcritical with respect to the Sobolev Embedding Theorem there exists a closed infinite dimensional linear subspace whose non zero elements are nowhere bounded functions.
Lamberti, PIER DOMENICO   +1 more
core   +3 more sources

Ellipsoidal Subspace Support Vector Data Description

open access: yesIEEE Access, 2020
In this paper, we propose a novel method for transforming data into a low-dimensional space optimized for one-class classification. The proposed method iteratively transforms data into a new subspace optimized for ellipsoidal encapsulation of target ...
Fahad Sohrab   +3 more
doaj   +1 more source

Rank-metric codes as ideals for subspace codes and their weight properties

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
Let , a prime, a positive integer, and the Galois field with cardinality and characteristic . In this paper, we study some weight properties of rank-metric codes and subspace codes.
Bryan S. Hernandez, Virgilio P. Sison
doaj   +2 more sources

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