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Abstrakty
In the paper, two tests of pentadiagonal Toeplitz covariance structure are presented. In contrast to standard testing procedures, the likelihood ratio test and the Rao score test, based on maximum likelihood estimation, which in the considered case requires computationally intensive numerical algorithms, the estimators obtained by projection onto the linear space of banded Toeplitz matrices or onto the asymptotic cone of nonnegative definite banded Toeplitz matrices are applied. To investigate the behavior of the test statistics distributions, the simulation study is performed for two particular examples of pentadiagonal Toeplitz structured covariances.
Rocznik
Tom
Strony
33--46
Opis fizyczny
Bibliogr. 17 poz., rys.
Twórcy
autor
- Institute of Mathematics, Poznan University of Technology, Poznan, Poland
Bibliografia
- [1] Basak, A., Paquette, E., & Zeitouni, O. (2019). Regularization of non-normal matrices by Gaussian noise - the banded Toeplitz and twisted Toeplitz cases. Forum of Mathematics, Sigma, 7, e3.
- [2] Bjornson, E., Sanguinetti, L., & Hoydis, J. (2017). Massive MIMO networks: Spectral, energy, ¨ and hardware efficiency. Found. Trends Signal Process., 11(3-4), 154-655.
- [3] Brockwell, P.J., & Davis, R.A. (2016). Introduction to Time Series and Forecasting. Cham: Springer.
- [4] Ledoit, O., & Wolf, M. (2004). A well-conditioned estimator for large-dimensional covariance matrices. J. Multivariate Anal., 88(2), 365-411.
- [5] John, M., & Mieldzioc, A. (2019). The comparison of the estimators of banded Toeplitz covariance structure under the high-dimensional multivariate model. Comm. Statist. Simulation Comput., 49(3), 1-19.
- [6] Filipiak, K., Markiewicz, A., Mieldzioc, A., & Sawikowska, A. (2018). On projection of a positive definite matrix on a cone of nonnegative definite Toeplitz matrices. Electron. J. Linear Algebra, 33, 74-82.
- [7] Bottcher, A., & Grudsky, S.M. (2005). ¨ Spectral Properties of Banded Toeplitz Matrices. Philadelphia: Society for Industrial and Applied Mathematics, SIAM.
- [8] Garoni, C., & Serra-Capizzano, S. (2017). Generalized Locally Toeplitz Sequences: Theory and Applications. Cham: Springer.
- [9] Ekstrom, S.-E., Garoni, C., & Serra-Capizzano, S. (2018). Are the eigenvalues of banded ¨ symmetric Toeplitz matrices known in almost closed form? Exp. Math., 27(4), 478-487.
- [10] Bogoya, M., Grudsky, S.M., & Serra-Capizzano, S. (2024). Fast non-Hermitian Toeplitz eigenvalue computations, joining matrixless algorithms and FDE approximation matrices. SIAM J. Matrix Anal. Appl., 45(1), 284-305.
- [11] Cui, X., Li, C., Zhao, J., Zeng, L., Zhang, D., & Pan, J. (2016). Covariance structure regularization via Frobenius-norm discrepancy. Linear Algebra Appl., 510, 124-145.
- [12] Filipiak, K., & Klein, D. (2021). Estimation and Testing of the Covariance Structure of Doubly Multivariate Data. In: K. Filipiak, A. Markiewicz, & D. von Rosen, (Eds.), Multivariate, Multilinear and Mixed Linear Models. Springer, 131-155.
- [13] Rao, C.R. (2005). Score Test: Historical Review and Recent Developments. In: N. Balakrishnan, N. Kannan, & H.N. Nagaraja (Eds.), Advances in Ranking and Selection. Multiple Comparisons, and Reliability. Birkhauser, 3-20.
- [14] Filipiak, K., Klein, D., & Roy, A. (2016). Score test for a separable covariance structure with the first component as compound symmetric correlation matrix. J. Multivariate Anal., 150, 105-124.
- [15] Anderson, T.W. (2003). An Introduction to Multivariate Statistical Analysis. Hoboken: John Wiley & Sons, Inc.
- [16] Magnus, J., & Neudecker, H. (1986). Symmetry, 0-1 matrices and Jacobians: A review. Econom. Theory, 2, 157-190.
- [17] Fackler, P.L. (2005). Notes on matrix calculus. https://media.gradebuddy.com/documents/18971 45/1ad5e235-824d-4bbf-81d6-ffd2040e37ec.pdf.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki i promocja sportu (2025).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-12779979-e511-4637-aa70-7fbaa55c6886
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