Results 11 to 20 of about 12,007,100 (152)

Subspace discovery for video anomaly detection [PDF]

open access: yes, 2010
PhDIn automated video surveillance anomaly detection is a challenging task. We address this task as a novelty detection problem where pattern description is limited and labelling information is available only for a small sample of normal instances.
Tziakos, Ioannis
core   +4 more sources

Novel algorithms in wireless CDMA systems for estimation and kernel based equalization [PDF]

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A powerful technique is presented for joint blind channel estimation and carrier offset method for code- division multiple access (CDMA) communication ...
Vlachos, Dimitrios
core   +7 more sources

Efficient Malware Analysis Using Subspace-Based Methods on Representative Image Patterns

open access: yesIEEE Access, 2023
In this paper, we propose a new framework for classifying and visualizing malware files using subspace-based methods. The rise of advanced malware poses a significant threat to internet security, increasing the pressure on traditional cybersecurity ...
Djafer Yahia M Benchadi   +2 more
doaj   +1 more source

CS Decomposition Based Bayesian Subspace Estimation [PDF]

open access: yes, 2012
In numerous applications, it is required to estimate the principal subspace of the data, possibly from a very limited number of samples. Additionally, it often occurs that some rough knowledge about this subspace is available and could be used to improve
Besson, Olivier   +2 more
core   +1 more source

Bootstrap methods in selection of the discriminant subspace

open access: yesLietuvos Matematikos Rinkinys, 2000
There is not abstract.
Gintautas Jakimauskas   +1 more
doaj   +3 more sources

Hyperspectral Band Selection via Optimal Combination Strategy

open access: yesRemote Sensing, 2022
Band selection is one of the main methods of reducing the number of dimensions in a hyperspectral image. Recently, various methods have been proposed to address this issue.
Shuying Li   +3 more
doaj   +1 more source

Robust auto-weighted multi-view subspace clustering with common subspace representation matrix. [PDF]

open access: yesPLoS ONE, 2017
In many computer vision and machine learning applications, the data sets distribute on certain low-dimensional subspaces. Subspace clustering is a powerful technology to find the underlying subspaces and cluster data points correctly.
Wenzhang Zhuge   +5 more
doaj   +1 more source

Anomaly Community Detection Method via Subspace Combining Node Attribute and Structure Information [PDF]

open access: yesJisuanji gongcheng, 2020
This paper proposes an anomaly community detection method via subspace by combining node attributes with structure information.First,in the given set of to-be-tested communities,the subspace solution strategy based on the average distance of attributes ...
ZHAO Qiqi, MA Huifang, LIU Haijiao, JIA Junjie
doaj   +1 more source

Comparative analysis of power spectrum estimation methods

open access: yesLietuvos Matematikos Rinkinys, 2010
The subject of this paper is the comparative analysis of the eleven most important nonparametric, parametric and subspace power spectrum estimation methods.
Gintarė Petreikytė, Kazys Kazlauskas
doaj   +1 more source

On the Preconditioned Delayed Weighted Gradient Method

open access: yesTrends in Computational and Applied Mathematics, 2023
In this article a preconditioned version of the Delayed Weighted Gradient Method (DWGM) is presented and analyzed.  In addition to the convergence, some nice properties as  the A- orthogonality of the current transformed gradient with all the previous ...
R. Aleixo, H. Lara Urdaneta
doaj   +1 more source

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