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321
Asymptotically Sufficient Statistics in Nonparametric Regression Experiments with Correlated Noise
Published 2009-01-01“…These statistics are derived from a wavelet decomposition that is used to whiten the noise process and to effectively separate high-resolution and low-resolution components. …”
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322
Motion Objects Segmentation and Shadow Suppressing without Background Learning
Published 2014-01-01“…An approach to segmenting motion objects and suppressing shadows without background learning has been developed. Since wavelet transformation indicates the position of sharper variation, it is adopted to extract the information contents with the most meaningful features based on two successive video frames only. …”
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323
Sparse Optimization of Vibration Signal by ADMM
Published 2017-01-01“…Moreover, using the discrete wavelet transform in signal reconstruction there still are some outliers but the error is unstable. …”
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324
Intelligent Turning Tool Monitoring with Neural Network Adaptive Learning
Published 2019-01-01“…Based on LabVIEW and MATLAB hybrid programming, the waveforms of signals are observed and the significant characteristics of signals are extracted through the time-frequency domain analysis and then the calculation of the energy proportion of each frequency band obtained using 4 levels of wavelet packet decompositions of the vibration signal as well as 8 levels of wavelet multiresolution decompositions of the AE signal; the ensuing Relief-F algorithm is used to further reextract the features that are most relevant to the tool state as input of neural network pattern recognition. …”
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325
Research on the Correlation between Information and Communication Technology Development and Consumer Spending Based on Artificial Intelligence and Time Series Econometric Model
Published 2022-01-01“…Moreover, this paper organically combines the advantages of wavelet analysis and hidden Markov model to construct a wavelet domain hidden Markov chain model. …”
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326
Dynamic Response of a Beam Resting on a Nonlinear Foundation to a Moving Load: Coiflet-Based Solution
Published 2012-01-01“…The solution for vibrations is obtained by using the Adomian's decomposition combined with the Fourier transform and a wavelet-based procedure for its computation. The adapted approximating method uses wavelet filters of Coiflet type that appeared a very effective tool for vibration analysis in a few earlier papers. …”
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327
Bolt Detection Signal Analysis Method Based on ICEEMD
Published 2018-01-01“…The noise of the IMFs is eliminated by the wavelet soft threshold denoising technique. Based on the approximate entropy and the wavelet denoising principle, the ICEEMD-De anchor signal analysis method is proposed. …”
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328
Planetary Gearbox Fault Diagnosis Using Envelope Manifold Demodulation
Published 2016-01-01“…This method combines complex wavelet, manifold learning, and frequency spectrogram to implement planetary gear fault characteristic extraction. …”
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329
The influence of post-processing methods and frequency bands on rs-fMRI: An example of electroacupuncture at Zusanli (ST36)
Published 2025-03-01“…Three post-processing methods were used to evaluate the amplitude of LFOs: fractional ALFF (fALFF), percent amplitude of fluctuation (PerAF) and wavelet-transform ALFF (Wavelet-ALFF). Besides the conventional low-frequency band (0.01–0.1Hz), three additional sub-bands were observed, including slow-6 (0–0.01Hz), slow-5 (0.01–0.027Hz) and slow-4 (0.027–0.073Hz). …”
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330
Slow Motion and Zoom in HD Digital Videos Using Fractals
Published 2009-01-01“…Purpose of this paper is to present an alternative technique combining fractals theory and wavelet decomposition to achieve spatial zoom and slow motion replay of HD digital color video sequences. …”
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331
Experimental Investigation of Stall Inception Mechanisms of Low Speed Contra Rotating Axial Flow Fan Stage
Published 2015-01-01“…The present paper is an attempt in understanding the stall inception mechanism in a low speed, contra rotating axial flow fan stage, using wavelet transforms. The rotors used in this study have relatively large tip gap (about 3% of the blade span) and aspect ratio of 3. …”
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332
Solutions of a Class of Multiplicatively Advanced Differential Equations II: Fourier Transforms
Published 2022-01-01“…In a large subset of the general case, we introduce a new family of Schwartz wavelet MADE solutions Wμ,λt for μ and λ rational with λ>0. …”
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333
Multi‐Wound Classification: Exploring Image Enhancement and Deep Learning Techniques
Published 2025-01-01“…FixCaps had trainable parameters of about 8.28 MB compared with the 195.64 MB of the Gated Wavelet CNN Model.…”
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334
Recognition and Simulation of Exercise Mode Based on Energy Consumption Model
Published 2021-01-01“…This paper proposes a human movement recognition method based on hybrid features, which mostly can represent the curve of the second generation wavelet transform edge thinning, and from the edge and texture features of the optimal said human posture, the statistical characteristic of the second generation wavelet transform is subtly trained as image characteristics, learning and recognition of human movement. …”
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335
Hybrid Time Series Method for Long-Time Temperature Series Analysis
Published 2021-01-01“…Then, we use 10 different discrete wavelet functions to decompose and reconstruct the observed data. …”
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336
A Hybrid Chatter Detection Method Based on WPD, SSA, and SVM-PSO
Published 2020-01-01“…In this paper, a hybrid chatter detection method (HCDM) is proposed for chatter feature extraction and classification in end milling. Firstly, wavelet packet decomposition is employed to decompose cutting vibration signals into a series of wavelet coefficients, and the signals of each frequency band are reconstructed. …”
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337
Noninvasive Load Identification Method Based on Feature Similarity
Published 2020-01-01“…In this paper, the similarity model is established to realize the noninvasive load identification of power by determining the feature database for the equipment. Firstly, the wavelet decomposition method and the wavelet threshold processing method are used to remove abnormal points and reduce noise of the original data, respectively. …”
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338
Damage Identification Investigation of Retaining Wall Structures Based on a Virtual Impulse Response Function
Published 2016-01-01“…To eliminate the influence of excitation on the wavelet packet frequency band energy spectrum (ES), ES is acquired via wavelet packet decomposition of a virtual impulse response function. …”
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339
Multiscale Latent Variable Regression
Published 2010-01-01“…Multiscale wavelet-based representation of data has been shown to be a powerful tool in feature extraction from practical process data. …”
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340
An Improved Method of EWT and Its Application in Rolling Bearings Fault Diagnosis
Published 2020-01-01“…The traditional empirical wavelet transform (EWT) decomposes signals into a large number of components, and it is difficult to select suitable components that contain fault information. …”
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