Results 31 to 40 of about 31,673 (301)

Operator Equations, Multiscale Concepts and Complexity [PDF]

open access: yes, 1995
In this paper, we review several recent developments centering upon the application of multiscale basis methods for the numerical solution of operator equations with special emphasis on complexity questions.
Angela Kunoth   +7 more
core   +2 more sources

Image Forensics Using Non-Reducing Convolutional Neural Network for Consecutive Dual Operators

open access: yesApplied Sciences, 2022
Digital image forensics has become necessary as an emerging technology. Images can be adulterated effortlessly using image tools. The latest techniques are available to detect whether an image is adulterated by a particular operator. Most of the existing
Se-Hyun Cho   +3 more
doaj   +1 more source

Fine Spectra of Upper Triangular Double-Band Matrices over the Sequence Space ,

open access: yesDiscrete Dynamics in Nature and Society, 2012
The operator on sequence space on is defined , where , and and are two convergent sequences of nonzero real numbers satisfying certain conditions, where . The main purpose of this paper is to determine the fine spectrum with respect to the Goldberg's
Ali Karaisa
doaj   +1 more source

RESEARCH ON DIFFERENTIAL CODING METHOD FOR SATELLITE REMOTE SENSING DATA COMPRESSION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Data compression, in the process of Satellite Earth data transmission, is of great concern to improve the efficiency of data transmission. Information amounts inherent to remote sensing images provide a foundation for data compression in terms of ...
Z. J. Lin   +4 more
doaj   +1 more source

Localized bases of eigensubspaces and operator compression [PDF]

open access: yesProceedings of the National Academy of Sciences, 2010
Given a complex local operator, such as the generator of a Markov chain on a large network, a differential operator, or a large sparse matrix that comes from the discretization of a differential operator, we would like to find its best finite dimensional approximation with a given dimension.
E, Weinan, Li, Tiejun, Lu, Jianfeng
openaire   +2 more sources

The Effect of General Imperfections on the Buckling of Cylindrical SheIls. [PDF]

open access: yes, 1968
An experimental and theoretical investigation of the effect of general imperfections on the buckling load of a circular cylindrical shell under axial compression was carried out.
Arbocz, Johann
core   +1 more source

Low-depth simulations of fermionic systems on square-grid quantum hardware [PDF]

open access: yesQuantum
We present a general strategy for mapping fermionic systems to quantum hardware with square qubit connectivity which yields low-depth quantum circuits, counted in the number of native two-qubit fSIM gates.
Manuel G. Algaba   +3 more
doaj   +1 more source

Compressive Sampling of Color Retinal Image Using Spread Spectrum Fourier Sampling and Total Variant

open access: yesIEEE Access, 2022
In medical imaging, the application of retinal images demands a lot of retinal photos to analyze and requires efficient compression techniques for retinal image storage.
Ledya Novamizanti   +5 more
doaj   +1 more source

An operational approach for hyperspectral image compression [PDF]

open access: yes2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
In lossy compression such as PCA+JPEG2000 for hyperspectral imagery, the bitrate is usually not fixed, resulting in various rate-distortion performance. In this paper, we propose an operational approach to determine the approximately optimal bitrate to be used to preserve both the majority of the information in the dataset as well as the anomalous ...
Qian Du 0001   +2 more
openaire   +1 more source

Fine Spectra of Upper Triangular Triple-Band Matrices over the Sequence Space ()

open access: yesAbstract and Applied Analysis, 2013
The fine spectra of lower triangular triple-band matrices have been examined by several authors (e.g., Akhmedov (2006), Başar (2007), and Furken et al. (2010)). Here we determine the fine spectra of upper triangular triple-band matrices over the sequence
Ali Karaisa, Feyzi Başar
doaj   +1 more source

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