Results 21 to 30 of about 371,957 (287)
ComTech, 2014 Multicollinearity and outliers are the common problems when estimating regression model. Â Â Multicollinearitiy occurs when there are high correlations among predictor variables, leading to difficulties in separating the effects of each independent ...
Margaretha Ohyver, Herena Pudjihastuti
doaj +1 more source
Effective Wavelet Algorithm for an Automatic Detection of Atrial Fibrillation
Advances in Electrical and Computer Engineering, 2020 Cardiac anomalies are usually marked through irregular cardiac cycles. Atrial fibrillation is given through a rapid beating of the atria, announcing a possible heart failure or stroke. Electrocardiograms are an efficient way of supervising the electric
ARVINTI, B., ISAR, A., COSTACHE, M.
doaj +1 more source
IEEE Access, 2020 We use the proper orthogonal decomposition (POD) method to decompose acoustic imaging from wavelet-based beamforming results into their corresponding modes, and demonstrate the method to analyze the noise characteristics of small-dimensional components ...
Sicong Liang +3 more
doaj +1 more source
Wavelet transformation on a finite interval
Informatika, 2021 Integral transformations on a finite interval with a singular basis wavelet are considered. Using a sequence of such transformations, the problem of nonparametric approximation of a function is solved.
V. M. Romanchak
doaj +1 more source
Beam-like damage detection methodology using wavelet damage ratio and additional roving mass
Fracture and Structural Integrity, 2022 Early damage detection plays an essential role in the safe and satisfactory maintenance of structures. This work investigates techniques that use only damaged structure responses.
Juliana C. Santos +5 more
doaj +1 more source
Image resolution enhancement using dual-tree complex wavelet transform [PDF]
, 2010 In this letter, a complex wavelet-domain image resolution enhancement algorithm based on the estimation of wavelet coefficients is proposed. The method uses a forward and inverse dual-tree complex wavelet transform (DT-CWT) to construct a high-resolution
Tjahjadi, Tardi, Çelik, Turgay
core +1 more source
The wavelet transforms in Gelfand-Shilov spaces [PDF]
, 2015 We describe local and global properties of wavelet transforms of ultradifferentiable functions. The results are given in the form of continuity properties of the wavelet transform on Gelfand-Shilov type spaces and their duals. In particular, we introduce
Pilipovic, Stevan +3 more
core +3 more sources
ISPRS International Journal of Geo-Information, 2016 Global Positioning System (GPS) structural health monitoring data collection is one of the important systems in structure movement monitoring. However, GPS measurement error and noise limit the application of such systems. Many attempts have been made to
Mosbeh R. Kaloop +2 more
doaj +1 more source
Structure and realization of pole-shared switched-current complex wavelet filter [PDF]
, 2015 A pole-shared switched-current complex wavelet filter structure with follow-the-leader feedback configuration is proposed for synthesizing the real and imaginary approximation functions with the same poles.
He, Yigang, Sun, Yichuang, Zhao, Wenshan
core +2 more sources
Baltic Journal of Economics, 2019 This paper investigates how oil price changes affect consumer price inflation in eleven Central and Eastern European countries. We use a wavelet-based Markov switching approach in order to distinguish between the effects at different time horizons.
Dejan Živkov +2 more
doaj +1 more source