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An Effective Approach for Reliability-Based Sensitivity Analysis with the Principle of Maximum Entropy and Fractional Moments [PDF]

open access: yesEntropy, 2019
The reliability-based sensitivity analysis requires to recursively evaluate a multivariate structural model for many failure probability levels. This is in general a computationally intensive task due to irregular integrations used to define the ...
Xufang Zhang   +3 more
doaj   +2 more sources

New fractional-order shifted Gegenbauer moments for image analysis and recognition

open access: yesJournal of Advanced Research, 2020
Orthogonal moments are used to represent digital images with minimum redundancy. Orthogonal moments with fractional-orders show better capabilities in digital image analysis than integer-order moments.
Khalid M. Hosny   +2 more
doaj   +3 more sources

On fractional Fourier transform moments [PDF]

open access: yesIEEE Signal Processing Letters, 2000
Based on the relation between the ambiguity function represented in a quasi-polar coordinate system and the fractional power spectra, the fractional Fourier transform moments are introduced. Important equalities for the global second-order fractional Fourier transform moments are derived and their applications for signal analysis are discussed.
Tatiana Alieva, M J Bastiaans
exaly   +3 more sources

Determining the lifetime distribution using fractional moments with maximum entropy [PDF]

open access: yesHeliyon
Here we propose a model-free, non-parametric method to solve an ill-posed inverse problem arising in several fields. It consists of determining a probability density of the lifetime, or the probability of survival of an individual, from the knowledge of ...
Henryk Gzyl, Silvia Mayoral
doaj   +2 more sources

Music score copyright protection based on mixed low-order quaternion Franklin moments. [PDF]

open access: yesPLoS ONE
Due to the rapid growth of the digital music industry, music copyrights have become valuable intangible assets for businesses, offering exclusivity and profitability.
Qizheng Huang   +3 more
doaj   +2 more sources

Optimized bio-signal reconstruction and watermarking via enhanced fractional orthogonal moments [PDF]

open access: yesScientific Reports
Orthogonal Tchebichef moments of fractional order (FrTMs) serve as descriptors for signals and images. Many fields, including signal analysis and watermarking, have relied heavily on such moments.
Gaber Hassan   +2 more
doaj   +2 more sources

The noise reduction of medical radiography images using fractional moments [PDF]

open access: yesمجله پزشکی دانشگاه علوم پزشکی تبریز, 2021
Background: This paper presents a method to improve medical radiography images based on the use of statistical signal moments. Methods: In this paper, the image with noise is considered as a statistical signal, and the noise reduction is performed by ...
Mahdieh Gholizadeh   +3 more
doaj   +1 more source

Invariant Image Representation Using Novel Fractional-Order Polar Harmonic Fourier Moments

open access: yesSensors, 2021
Continuous orthogonal moments, for which continuous functions are used as kernel functions, are invariant to rotation and scaling, and they have been greatly developed over the recent years.
Chunpeng Wang   +5 more
doaj   +1 more source

Fractional moments of the stochastic heat equation [PDF]

open access: yesAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2021
Consider the solution $\mathcal{Z}(t,x)$ of the one-dimensional stochastic heat equation, with a multiplicative spacetime white noise, and with the delta initial data $\mathcal{Z}(0,x) = δ(x)$. For any real $p>0$, we obtained detailed estimates of the $p$-th moment of $e^{t/12}\mathcal{Z}(2t,0)$, as $t\to\infty$, and from these estimates establish ...
Das, Sayan, Tsai, Li-Cheng
openaire   +3 more sources

Probability Distributions Approximation via Fractional Moments and Maximum Entropy: Theoretical and Computational Aspects

open access: yesAxioms, 2023
In the literature, the use of fractional moments to express the available information in the framework of maximum entropy (MaxEnt) approximation of a distribution F having finite or unbounded positive support, has been essentially considered as a ...
Pier Luigi Novi Inverardi, Aldo Tagliani
doaj   +1 more source

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