{"id":"https://openalex.org/W2153212383","doi":"https://doi.org/10.1016/s0010-4825(99)00018-9","title":"Determining the Hurst exponent of fractal time series and its application to electrocardiographic analysis","display_name":"Determining the Hurst exponent of fractal time series and its application to electrocardiographic analysis","publication_year":1999,"publication_date":"1999-11-01","ids":{"openalex":"https://openalex.org/W2153212383","doi":"https://doi.org/10.1016/s0010-4825(99)00018-9","mag":"2153212383","pmid":"https://pubmed.ncbi.nlm.nih.gov/10591173"},"language":"en","primary_location":{"id":"doi:10.1016/s0010-4825(99)00018-9","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0010-4825(99)00018-9","pdf_url":null,"source":{"id":"https://openalex.org/S44278595","display_name":"Computers in Biology and Medicine","issn_l":"0010-4825","issn":["0010-4825","1879-0534"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers in Biology and Medicine","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5002361764","display_name":"Paolo B. DePetrillo","orcid":null},"institutions":[{"id":"https://openalex.org/I4210155647","display_name":"National Institutes of Health Clinical Center","ror":"https://ror.org/04vfsmv21","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238","https://openalex.org/I4210155647"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Paolo B. DePetrillo","raw_affiliation_strings":["Laboratory of Clinical Studies, Section of Clinical Science, Unit of Clinical and Biochemical Pharmacology, Bethesda, MD, USA. pbdp@helix.nih.gov","Laboratory of Clinical Studies, Section of Clinical Science, Unit of Clinical and Biochemical Pharmacology, Bethesda, MD, USA"],"affiliations":[{"raw_affiliation_string":"Laboratory of Clinical Studies, Section of Clinical Science, Unit of Clinical and Biochemical Pharmacology, Bethesda, MD, USA. pbdp@helix.nih.gov","institution_ids":["https://openalex.org/I4210155647"]},{"raw_affiliation_string":"Laboratory of Clinical Studies, Section of Clinical Science, Unit of Clinical and Biochemical Pharmacology, Bethesda, MD, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050280726","display_name":"d'Armond Speers","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"d'Armond Speers","raw_affiliation_strings":["Intelligent Systems, Thomson Labs, Rockville, MD, USA"],"affiliations":[{"raw_affiliation_string":"Intelligent Systems, Thomson Labs, Rockville, MD, USA","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5017131249","display_name":"Urs E. Ruttimann","orcid":null},"institutions":[{"id":"https://openalex.org/I4210121815","display_name":"National Institute on Alcohol Abuse and Alcoholism","ror":"https://ror.org/02jzrsm59","country_code":"US","type":"facility","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238","https://openalex.org/I4210121815"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Urs E. Ruttimann","raw_affiliation_strings":["Section of Brain Electrophysiology and Imaging, Division of Intramural Clinical and Biological Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA"],"affiliations":[{"raw_affiliation_string":"Section of Brain Electrophysiology and Imaging, Division of Intramural Clinical and Biological Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA","institution_ids":["https://openalex.org/I4210121815"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5002361764"],"corresponding_institution_ids":["https://openalex.org/I4210155647"],"apc_list":{"value":2610,"currency":"USD","value_usd":2610},"apc_paid":null,"fwci":3.9518,"has_fulltext":false,"cited_by_count":49,"citation_normalized_percentile":{"value":0.9440286,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"29","issue":"6","first_page":"393","last_page":"406"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11270","display_name":"Complex Systems and Time Series Analysis","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11270","display_name":"Complex Systems and Time Series Analysis","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12205","display_name":"Time Series Analysis and Forecasting","score":0.9872000217437744,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10244","display_name":"Chaos control and synchronization","score":0.9803000092506409,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/hurst-exponent","display_name":"Hurst exponent","score":0.9058809280395508},{"id":"https://openalex.org/keywords/fractal","display_name":"Fractal","score":0.8435529470443726},{"id":"https://openalex.org/keywords/series","display_name":"Series (stratigraphy)","score":0.6867488622665405},{"id":"https://openalex.org/keywords/time-series","display_name":"Time series","score":0.5705869793891907},{"id":"https://openalex.org/keywords/fractal-analysis","display_name":"Fractal analysis","score":0.5191032886505127},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4801325500011444},{"id":"https://openalex.org/keywords/interval","display_name":"Interval (graph theory)","score":0.46026068925857544},{"id":"https://openalex.org/keywords/exponent","display_name":"Exponent","score":0.4512259066104889},{"id":"https://openalex.org/keywords/box-counting","display_name":"Box counting","score":0.4399653971195221},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.43637409806251526},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.42400574684143066},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.3423829674720764},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.3300265371799469},{"id":"https://openalex.org/keywords/fractal-dimension","display_name":"Fractal dimension","score":0.31806138157844543},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.14121931791305542},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.07461532950401306}],"concepts":[{"id":"https://openalex.org/C96835011","wikidata":"https://www.wikidata.org/wiki/Q1638718","display_name":"Hurst exponent","level":2,"score":0.9058809280395508},{"id":"https://openalex.org/C40636538","wikidata":"https://www.wikidata.org/wiki/Q81392","display_name":"Fractal","level":2,"score":0.8435529470443726},{"id":"https://openalex.org/C143724316","wikidata":"https://www.wikidata.org/wiki/Q312468","display_name":"Series (stratigraphy)","level":2,"score":0.6867488622665405},{"id":"https://openalex.org/C151406439","wikidata":"https://www.wikidata.org/wiki/Q186588","display_name":"Time series","level":2,"score":0.5705869793891907},{"id":"https://openalex.org/C162494671","wikidata":"https://www.wikidata.org/wiki/Q2845227","display_name":"Fractal analysis","level":4,"score":0.5191032886505127},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4801325500011444},{"id":"https://openalex.org/C2778067643","wikidata":"https://www.wikidata.org/wiki/Q166507","display_name":"Interval (graph theory)","level":2,"score":0.46026068925857544},{"id":"https://openalex.org/C2780388253","wikidata":"https://www.wikidata.org/wiki/Q5421508","display_name":"Exponent","level":2,"score":0.4512259066104889},{"id":"https://openalex.org/C99008458","wikidata":"https://www.wikidata.org/wiki/Q4951583","display_name":"Box counting","level":5,"score":0.4399653971195221},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.43637409806251526},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.42400574684143066},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.3423829674720764},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.3300265371799469},{"id":"https://openalex.org/C26546657","wikidata":"https://www.wikidata.org/wiki/Q1412452","display_name":"Fractal dimension","level":3,"score":0.31806138157844543},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.14121931791305542},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.07461532950401306},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004562","descriptor_name":"Electrocardiography","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":false},{"descriptor_ui":"D004562","descriptor_name":"Electrocardiography","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":false},{"descriptor_ui":"D004562","descriptor_name":"Electrocardiography","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":false},{"descriptor_ui":"D005080","descriptor_name":"Exercise Test","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":false},{"descriptor_ui":"D005080","descriptor_name":"Exercise Test","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":false},{"descriptor_ui":"D005080","descriptor_name":"Exercise Test","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008432","descriptor_name":"Mathematical Computing","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008432","descriptor_name":"Mathematical Computing","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008432","descriptor_name":"Mathematical Computing","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012016","descriptor_name":"Reference Values","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012016","descriptor_name":"Reference Values","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012016","descriptor_name":"Reference Values","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012044","descriptor_name":"Regression Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012044","descriptor_name":"Regression Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012044","descriptor_name":"Regression Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012984","descriptor_name":"Software","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012984","descriptor_name":"Software","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012984","descriptor_name":"Software","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017709","descriptor_name":"Fractals","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D017709","descriptor_name":"Fractals","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D017709","descriptor_name":"Fractals","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":2,"locations":[{"id":"doi:10.1016/s0010-4825(99)00018-9","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0010-4825(99)00018-9","pdf_url":null,"source":{"id":"https://openalex.org/S44278595","display_name":"Computers in Biology and Medicine","issn_l":"0010-4825","issn":["0010-4825","1879-0534"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers in Biology and Medicine","raw_type":"journal-article"},{"id":"pmid:10591173","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/10591173","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers in biology and medicine","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320322637","display_name":"Politechnika Warszawska","ror":"https://ror.org/00y0xnp53"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W632688649","https://openalex.org/W1497262258","https://openalex.org/W1978667936","https://openalex.org/W1998129982","https://openalex.org/W2022859953","https://openalex.org/W2031753087","https://openalex.org/W2048579146","https://openalex.org/W2063255044","https://openalex.org/W2138115729","https://openalex.org/W2156263007","https://openalex.org/W2167741567","https://openalex.org/W2246609225","https://openalex.org/W2274350455","https://openalex.org/W2293830880","https://openalex.org/W4240542796","https://openalex.org/W6629830854"],"related_works":["https://openalex.org/W2005939750","https://openalex.org/W64698119","https://openalex.org/W4296962583","https://openalex.org/W1969673978","https://openalex.org/W3118733192","https://openalex.org/W2591940067","https://openalex.org/W2973798503","https://openalex.org/W2560106835","https://openalex.org/W2348793399","https://openalex.org/W2153212383"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":8}],"updated_date":"2026-01-13T01:12:25.745995","created_date":"2025-10-10T00:00:00"}