Results 31 to 40 of about 10,612,437 (315)

Building Parsimonious Dynamic System for Time Series [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2005
In this paper the radial basis function method is used for the generation of models of time series. It has been arrived at a model for nonlinear time series. It has also been found that the error is restricted between zero and one.
doaj   +1 more source

Fractional dynamics in Japanese financial time series [PDF]

open access: yesPacific-Basin Finance Journal, 1998
Abstract Using the spectral regression and Gaussian semiparametric methods of estimating the long-memory parameter, we test for fractional dynamic behavior in a number of important Japanese financial time series: spot exchange rates, forward exchange rates, stock prices, currency forward premia, Euroyen deposit rates, and the Euroyen term premium ...
John Barkoulas, Christopher F. Baum
openaire   +1 more source

Dynamics and sparsity in latent threshold factor models: A study in multivariate EEG signal processing

open access: yes, 2016
We discuss Bayesian analysis of multivariate time series with dynamic factor models that exploit time-adaptive sparsity in model parametrizations via the latent threshold approach.
Nakajima, Jouchi, West, Mike
core   +1 more source

Implementation of bagging in time series forecasting

open access: yesРоссийский технологический журнал
Objectives. The purpose of the article is to build different models of bagging, to compare the accuracy of their forecasts for the test period against standard models, and to draw conclusions about the possibility of further use of the bagging technique ...
Ia. V. Gramovich   +2 more
doaj   +1 more source

Analysis of approaches to identification of trend in the structure of the time series

open access: yesРоссийский технологический журнал
Objectives. The study set out to compare the forecasting quality of time series models that describe the trend in different ways and to form a conclusion about the applicability of each approach in describing the trend depending on the properties of the ...
U. S. Mokhnatkina   +2 more
doaj   +1 more source

Neural network analysis in time series forecasting

open access: yesРоссийский технологический журнал
Objectives. To build neural network models of time series (LSTM, GRU, RNN) and compare the results of forecasting with their mutual help and the results of standard models (ARIMA, ETS), in order to ascertain in which cases a certain group of models ...
B. Pashshoev, D. A. Petrusevich
doaj   +1 more source

Using Wavelets to Identify Linear Dynamic Models [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية
The forecasting process of water cleaning in the city of Mosul was studied using the input and output variables represented by some tests performed on raw water before the filtration process, to be treated through multiple filtration stages. To determine
Youns M. Th. Al.Obeady   +2 more
doaj   +1 more source

Pharmacokinetic Analysis of Gd-DTPA Enhancement in dynamic three-dimensional MRI of breast lesions [PDF]

open access: yes, 1997
The purpose of this study was to demonstrate that dynamic MRI covering both breasts can provide sensitivity for tumor detection as well as specificity and sensitivity for differentiation of tumor malignancy.
de Vos, Rob A.I.   +10 more
core   +4 more sources

A comparative study of immune system based genetic algorithms in dynamic environments [PDF]

open access: yes, 2006
Copyright @ 2006 ACMDiversity and memory are two major mechanisms used in biology to keep the adaptability of organisms in the ever-changing environment in nature.
Yang, S
core   +3 more sources

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

open access: yesFEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

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