Results 41 to 50 of about 22,937,031 (254)

Simulation of a non‐linear, time‐variant circuit using the Haar wavelet transform

open access: yesIET Science, Measurement & Technology, 2022
Wavelet theory has disentangled numerous complexities, including those pertinent to transient and steady‐state responses of systems, when Laplace and Fourier transforms face insoluble obstacles. Reactive linear components (e.g.
Georgios G. Roumeliotis   +2 more
doaj   +1 more source

Speed Bump Enforcement System Based on Vehicle Speed Classified by Haar Cascade Classifier

open access: yesJurnal Teknologi dan Sistem Komputer, 2019
Driving at high speed is among the frequent causes of accidents. In this research, a warning system was developed to warn drivers when their speed beyond the safety limit. Haar cascade classifier was proposed for the detection system which comprises Haar
Muhammad Zulfikri   +2 more
doaj   +1 more source

A Wavelet Collocation Method for some Fractional Models

open access: yesRatio Mathematica, 2022
This article presents an effective numerical approach based on the operational matrix of fractional order integration of Haar wavelets for dealing with the fractional models of the mixing and the Newton law of cooling problems.
R Aruldoss, G. Jasmine
doaj   +1 more source

The orbit space of groupoids whose $C^*$-algebras are GCR

open access: yes, 2017
Let $G$ be second countable locally compact Hausdorff groupoid with a continuous Haar system. We remove the assumption of amenability in a theorem by Clark about GCR groupoid $C^*$-algebras.
Erasmus MC other   +10 more
core   +2 more sources

Frame Set for Gabor Systems with Haar Window

open access: yesApplied and Computational Harmonic Analysis, 2023
We show the full structure of the frame set for the Gabor system $\mathcal{G}(g;α,β):=\{e^{-2πi mβ\cdot}g(\cdot-nα):m,n\in\Bbb Z\}$ with the window being the Haar function $g=-χ_{[-1/2,0)}+χ_{[0,1/2)}$. The strategy of this paper is to introduce the piecewise linear transformation $\mathcal{M}$ on the unit circle, and to provide a complete ...
Dai, Xin-Rong, Zhu, Meng
openaire   +2 more sources

Weak $\Phi$-inequalities for the Haar system and differentially subordinated martingales

open access: yes, 2012
For any 1 ≤ p, q < ∞, we determine the optimal constant Cp,q such that the following holds. If (hk)k≥0 is the Haar system on [0, 1], then for any vectors ak from a separable Hilbert space H and ek ∈ {−1, 1}, k = 0, 1, 2, . . ., we have n X k=0 ekakhk q,∞
A. Osȩkowski
semanticscholar   +1 more source

Low Cost System for Face Mask Detection Based Haar Cascade Classifier Method

open access: yesMatrik, 2021
In December 2019, there was a pandemic caused by a new type of coronavirus, namely SARS-CoV-2 (Severe Acute Respiratory Syndrome Corona Virus 2) spread almost throughout the world.
R. P. M. D. Labib   +2 more
semanticscholar   +1 more source

A FEW REMARKS ON LOCALLY COMPACT TOPOLOGIES AND HAAR SYSTEMS [PDF]

open access: yesFiabilitate şi Durabilitate, 2018
We start from the question raised by Williams (Proc. Am. Math. Soc. 2016): Must a second countable, locally compact, transitive groupoid G have open range map? If the answer is positive, the topology of G is in fact locally transitive (in the sense of [
Mădălina Roxana BUNECI
doaj  

Interleukin‐18 levels are associated with disease course in patients with Still's disease treated with IL‐1 inhibitors

open access: yesArthritis &Rheumatology, Accepted Article.
Objective To evaluate the prognostic utility of circulating Interleukin‐18 (IL‐18) levels in predicting disease activity, macrophage activation syndrome (MAS), and disease course in Still's disease (SD) patients receiving first‐line IL‐1 inhibitors (IL‐1i).
Matteo Trevisan   +8 more
wiley   +1 more source

Obscenity Detection Using Haar-Like Features and Gentle Adaboost Classifier

open access: yesThe Scientific World Journal, 2014
Large exposure of skin area of an image is considered obscene. This only fact may lead to many false images having skin-like objects and may not detect those images which have partially exposed skin area but have exposed erotogenic human body parts. This
Rashed Mustafa, Yang Min, Dingju Zhu
doaj   +1 more source

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