Results 11 to 20 of about 214,238 (256)

Wavelet analysis of temporal data [PDF]

open access: yes, 2008
This thesis considers the application of wavelets to problems involving multiple series of temporal data. Wavelets have proven to be highly effective at extracting frequency information from data.
Goodwin, David Alexander
core   +7 more sources

Wavelet Estimators in Nonparametric Regression: A Comparative Simulation Study [PDF]

open access: yes, 2001
Wavelet analysis has been found to be a powerful tool for the nonparametric estimation of spatially-variable objects. We discuss in detail wavelet methods in nonparametric regression, where the data are modelled as observations of a signal contaminated ...
Theofanis Sapatinas   +5 more
core   +1 more source

Pemodelan Tingkat Penghunian Kamar Hotel di Kendari dengan Transformasi Wavelet Kontinu dan Partial Least Squares

open access: yesComTech, 2014
Multicollinearity and outliers are the common problems when estimating regression model.   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

open access: yesAdvances 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

Adjustment and Assessment of the Measurements of Low and High Sampling Frequencies of GPS Real-Time Monitoring of Structural Movement

open access: yesISPRS 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

Forecasting daily river flow using an artificial flora–support vector machine hybrid modeling approach (case study: Karkheh Catchment, Iran) [PDF]

open access: yesEnvironmental Resources Research, 2020
In this study, a hybrid support vector machine–artificial flora algorithm method was developed to estimate the flow rate of Karkheh Catchment rivers using daily discharge statistics.
R. Dehghani   +3 more
doaj   +1 more source

U.S. Core Inflation: A Wavelet Analysis [PDF]

open access: yes, 2006
This paper proposes the use of wavelet methods to estimate U.S. core inflation. It explains wavelet methods and suggests they are ideally suited to this task.
Cotter, John   +3 more
core   +3 more sources

Hybrid wavelet-gene expression programming and wavelet-support vector machine models for rainfall-runoff modeling

open access: yesWater Science and Technology, 2022
It is critical to use research methods to collect and regulate surface water to provide water while avoiding damage. Following accurate runoff prediction, principled planning for optimal runoff is implemented.
Potharlanka Jhansi Lakshmi   +4 more
doaj   +1 more source

How do oil price changes affect inflation in Central and Eastern European countries? A wavelet-based Markov switching approach

open access: yesBaltic 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

A hybrid wavelet-Lyapunov exponent model for river water quality forecast

open access: yesJournal of Hydroinformatics, 2021
The use of spectral theory and chaos theory on river water quality modeling is reported in a very limited way. This study proposes a wavelet-maximum Lyapunov exponent (WMLE) hybrid model for river water quality dynamics, combining spectral theory and ...
Jiping Jiang   +5 more
doaj   +1 more source

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