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dc.contributor.authorOzdes, Celik
dc.contributor.authorEroglu, Deniz
dc.date.accessioned2023-10-19T15:12:46Z
dc.date.available2023-10-19T15:12:46Z
dc.date.issued2023
dc.identifier.issn1951-6355
dc.identifier.issn1951-6401
dc.identifier.urihttps://doi.org/10.1140/epjs/s11734-022-00512-x
dc.identifier.urihttps://hdl.handle.net/20.500.12469/5528
dc.description.abstractIrregularly sampled time series analysis is a common problem in various disciplines. Since conventional methods are not directly applicable to irregularly sampled time series, a common interpolation approach is used; however, this causes data distortion and consequently biases further analyses. We propose a method that yields a regularly sampled time series spectrum of costs with minimum information loss. Each time series in this spectrum is a stationary series and acts as a difference filter. The transformation costs approach derives the differences between consecutive and arbitrarily sized segments. After obtaining regular sampling, recurrence plot analysis is performed to distinguish regime transitions. The approach is applied to a prototypical model to validate its performance and to different palaeoclimate proxy data sets located around Africa to identify critical climate transition periods during the last 5 million years and their characteristic properties.en_US
dc.description.sponsorshipTUBITAK [118C236]; BAGEP Award of the Science Academyen_US
dc.description.sponsorshipWe thank Norbert Marwan and Sebastian F. M. Breitenbach for enlightening discussions. Financial support from TUBITAK is acknowledged (Grant No. 118C236). D.E. was supported by the BAGEP Award of the Science Academy.en_US
dc.language.isoengen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofEuropean Physical Journal-Special Topicsen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectRecurrence PlotsEn_Us
dc.subjectNetworksEn_Us
dc.titleTransformation cost spectrum for irregularly sampled time seriesen_US
dc.typearticleen_US
dc.identifier.startpage35en_US
dc.identifier.endpage46en_US
dc.authoridEroglu, Deniz/0000-0001-6725-6949
dc.authoridOzdes, Mehmet Celik/0000-0002-3066-7178
dc.identifier.issue1en_US
dc.identifier.volume232en_US
dc.departmentN/Aen_US
dc.identifier.wosWOS:000772716400001en_US
dc.identifier.doi10.1140/epjs/s11734-022-00512-xen_US
dc.identifier.scopus2-s2.0-85127564769en_US
dc.institutionauthorN/A
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.authorwosidEroglu, Deniz/GVS-9233-2022
dc.khas20231019-WoSen_US


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