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Linked by Dynamics: Wavelet-Based Mutual Information Rate as a Connectivity Measure and Scale-Specific Networks
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SYSNO ASEP 0484478 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV O - Ostatní Název Linked by Dynamics: Wavelet-Based Mutual Information Rate as a Connectivity Measure and Scale-Specific Networks Tvůrce(i) Paluš, Milan (UIVT-O) RID, SAI, ORCID Zdroj.dok. Advances in Nonlinear Geosciences. - Cham : Springer, 2018 / Tsonis A.A. - ISBN 978-3-319-58894-0 Rozsah stran s. 427-463 Poč.str. 37 s. Forma vydání Tištěná - P Akce 30 Years of Nonlinear Dynamics Datum konání 03.07.2016 - 08.07.2016 Místo konání Rhodes Země GR - Řecko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova complex networks ; dynamical systems ; entropy rate ; mutual information rate ; wavelet transform ; climate networks ; scale-specific networks Vědní obor RIV IN - Informatika Obor OECD Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8) CEP LH14001 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GCP103/11/J068 GA ČR - Grantová agentura ČR Institucionální podpora UIVT-O - RVO:67985807 DOI https://doi.org/10.1007/978-3-319-58895-7_21 Anotace ZÁKLADNÍ ÚDAJE: In: Advances in Nonlinear Geosciences. Cham: Springer, 2018 - (Tsonis, A.), s. 427-463. Aegean Conferences. ISBN 978-3-319-58894-0. [30 Years of Nonlinear Dynamics. Rhodes (GR), 03.07.2016-08.07.2016]. PODPORA: GA MŠk LH14001, GA ČR GCP103/11/J068. ANOTACE: Experimentally observed networks of interacting dynamical systems are inferred from recorded multivariate time series by evaluating a statistical measure of dependence, usually the cross-correlation coefficient, or mutual information. These measures reflect dependence in static probability distributions, generated by systems’ evolution, rather than coherence of systems’ dynamics. Moreover, these „static” measures of dependence can be biased due to properties of dynamics underlying the analyzed time series. Consequently, properties of local dynamics can be misinterpreted as properties of connectivity or long-range interactions. We propose the mutual information rate as a measure reflecting coherence or synchronization of dynamics of two systems and not suffering by the bias typical for the „static” measures. We demonstrate that a computationally accessible estimation method, derived for Gaussian processes and adapted by using the wavelet transform, can be effective for nonlinear, nonstationary, and multiscale processes. The discussed problem and the proposed method are illustrated using numerically generated data of coupled dynamical systems as well as gridded reanalysis data of surface air temperature as the source for the construction of climate networks. In particular, scale-specific climate networks are introduced. Pracoviště Ústav informatiky Kontakt Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800 Rok sběru 2019
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