使混合
发表于 2025-3-23 12:15:31
Further Topics, ARMA processes in discrete time. Besides being of interest in their own right, they have proved a useful class of models in the representation of financial time series and in the modeling of irregularly spaced data.
治愈
发表于 2025-3-23 14:36:15
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admission
发表于 2025-3-23 21:11:09
1431-875X ate time series and state-space models, with an optional chapter on spectral analysis. Many additional special topics are also covered..New to this edition:.A chapter devoted to Financial Time Series.Introducti978-3-319-29854-2Series ISSN 1431-875X Series E-ISSN 2197-4136
paltry
发表于 2025-3-23 23:34:01
Introduction,ity and the autocovariance and sample autocovariance functions. Some standard techniques are described for the estimation and removal of trend and seasonality (of known period) from an observed time series. These are illustrated with reference to the data sets in Section 1.1. The calculations in all
Mast-Cell
发表于 2025-3-24 05:35:29
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过度
发表于 2025-3-24 09:50:32
Spectral Analysis, 5 The spectral representation of a stationary time series {..} essentially decomposes {..} into a sum of sinusoidal components with uncorrelated random coefficients. In conjunction with this decomposition there is a corresponding decomposition into sinusoids of the autocovariance function of {..}.
formula
发表于 2025-3-24 13:13:17
Modeling and Forecasting with ARMA Processes, include the choice of . and . (order selection) and estimation of the mean, the coefficients {.., . = 1, ., .}, {.., . = 1, ., .}, and the white noise variance ... Final selection of the model depends on a variety of goodness of fit tests, although it can be systematized to a large degree by use of
Debility
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Ruptured-Disk
发表于 2025-3-24 19:33:34
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勉励
发表于 2025-3-25 03:11:17
Forecasting Techniques,riateness of these models, of minimum mean squared error predictors. If the observed series had in fact been generated by the fitted model, this procedure would give minimum mean squared error forecasts. In this chapter we discuss three forecasting techniques that have less emphasis on the explicit