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- W4362519803 abstract "Abstract We study the integral of the Frobenius norm as a measure of the discrepancy between two multivariate spectra. Such a measure can be used to fit time series models, and ensures proximity between model and process at all frequencies of the spectral density. We develop new asymptotic results for linear and quadratic functionals of the periodogram, and apply the integrated Frobenius norm to fit time series models and test whether model residuals are white noise. The case of structural time series models is addressed, wherein co-integration rank testing is formally developed. Both applications are studied through simulation studies and time series data. The numerical results show that the proposed estimator can fit moderate- to large-dimensional structural timeseries in real time." @default.
- W4362519803 created "2023-04-06" @default.
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- W4362519803 date "2023-03-31" @default.
- W4362519803 modified "2023-10-13" @default.
- W4362519803 title "Model identification via total Frobenius norm of multivariate spectra" @default.
- W4362519803 doi "https://doi.org/10.1093/jrsssb/qkad012" @default.
- W4362519803 hasPublicationYear "2023" @default.
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