date: 2022-11-18T15:11:47Z pdf:unmappedUnicodeCharsPerPage: 12 pdf:PDFVersion: 1.7 pdf:docinfo:title: Spike Spectra for Recurrences xmp:CreatorTool: LaTeX with hyperref Keywords: decomposition; frequency analysis; recurrence analysis; bifurcations access_permission:modify_annotations: true access_permission:can_print_degraded: true subject: In recurrence analysis, the -recurrence rate encodes the periods of the cycles of the underlying high-dimensional time series. It, thus, plays a similar role to the autocorrelation for scalar time-series in encoding temporal correlations. However, its Fourier decomposition does not have a clean interpretation. Thus, there is no satisfactory analogue to the power spectrum in recurrence analysis. We introduce a novel method to decompose the -recurrence rate using an over-complete basis of Dirac combs together with sparsity regularization. We show that this decomposition, the inter-spike spectrum, naturally provides an analogue to the power spectrum for recurrence analysis in the sense that it reveals the dominant periodicities of the underlying time series. We show that the inter-spike spectrum correctly identifies patterns and transitions in the underlying system in a wide variety of examples and is robust to measurement noise. dc:creator: K. Hauke Kraemer, Frank Hellmann, Mehrnaz Anvari, Jürgen Kurths and Norbert Marwan dcterms:created: 2022-11-18T15:03:03Z Last-Modified: 2022-11-18T15:11:47Z dcterms:modified: 2022-11-18T15:11:47Z dc:format: application/pdf; version=1.7 title: Spike Spectra for Recurrences Last-Save-Date: 2022-11-18T15:11:47Z pdf:docinfo:creator_tool: LaTeX with hyperref access_permission:fill_in_form: true pdf:docinfo:keywords: decomposition; frequency analysis; recurrence analysis; bifurcations pdf:docinfo:modified: 2022-11-18T15:11:47Z meta:save-date: 2022-11-18T15:11:47Z pdf:encrypted: false dc:title: Spike Spectra for Recurrences modified: 2022-11-18T15:11:47Z cp:subject: In recurrence analysis, the -recurrence rate encodes the periods of the cycles of the underlying high-dimensional time series. It, thus, plays a similar role to the autocorrelation for scalar time-series in encoding temporal correlations. However, its Fourier decomposition does not have a clean interpretation. Thus, there is no satisfactory analogue to the power spectrum in recurrence analysis. We introduce a novel method to decompose the -recurrence rate using an over-complete basis of Dirac combs together with sparsity regularization. We show that this decomposition, the inter-spike spectrum, naturally provides an analogue to the power spectrum for recurrence analysis in the sense that it reveals the dominant periodicities of the underlying time series. We show that the inter-spike spectrum correctly identifies patterns and transitions in the underlying system in a wide variety of examples and is robust to measurement noise. pdf:docinfo:subject: In recurrence analysis, the -recurrence rate encodes the periods of the cycles of the underlying high-dimensional time series. It, thus, plays a similar role to the autocorrelation for scalar time-series in encoding temporal correlations. However, its Fourier decomposition does not have a clean interpretation. Thus, there is no satisfactory analogue to the power spectrum in recurrence analysis. We introduce a novel method to decompose the -recurrence rate using an over-complete basis of Dirac combs together with sparsity regularization. We show that this decomposition, the inter-spike spectrum, naturally provides an analogue to the power spectrum for recurrence analysis in the sense that it reveals the dominant periodicities of the underlying time series. We show that the inter-spike spectrum correctly identifies patterns and transitions in the underlying system in a wide variety of examples and is robust to measurement noise. Content-Type: application/pdf pdf:docinfo:creator: K. Hauke Kraemer, Frank Hellmann, Mehrnaz Anvari, Jürgen Kurths and Norbert Marwan X-Parsed-By: org.apache.tika.parser.DefaultParser creator: K. Hauke Kraemer, Frank Hellmann, Mehrnaz Anvari, Jürgen Kurths and Norbert Marwan meta:author: K. Hauke Kraemer, Frank Hellmann, Mehrnaz Anvari, Jürgen Kurths and Norbert Marwan dc:subject: decomposition; frequency analysis; recurrence analysis; bifurcations meta:creation-date: 2022-11-18T15:03:03Z created: 2022-11-18T15:03:03Z access_permission:extract_for_accessibility: true access_permission:assemble_document: true xmpTPg:NPages: 18 Creation-Date: 2022-11-18T15:03:03Z pdf:charsPerPage: 3586 access_permission:extract_content: true access_permission:can_print: true meta:keyword: decomposition; frequency analysis; recurrence analysis; bifurcations Author: K. Hauke Kraemer, Frank Hellmann, Mehrnaz Anvari, Jürgen Kurths and Norbert Marwan producer: pdfTeX-1.40.21 access_permission:can_modify: true pdf:docinfo:producer: pdfTeX-1.40.21 pdf:docinfo:created: 2022-11-18T15:03:03Z