{"id":"https://openalex.org/W2020537679","doi":"https://doi.org/10.1109/fskd.2012.6233719","title":"Study of the linguistic variables of heart rate variability using fuzzy entropy","display_name":"Study of the linguistic variables of heart rate variability using fuzzy entropy","publication_year":2012,"publication_date":"2012-05-01","ids":{"openalex":"https://openalex.org/W2020537679","doi":"https://doi.org/10.1109/fskd.2012.6233719","mag":"2020537679"},"language":"en","primary_location":{"id":"doi:10.1109/fskd.2012.6233719","is_oa":false,"landing_page_url":"https://doi.org/10.1109/fskd.2012.6233719","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 9th International Conference on Fuzzy Systems and Knowledge Discovery","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"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/A5078597444","display_name":"F Nu\u00f1o Almirantearena","orcid":null},"institutions":[{"id":"https://openalex.org/I189075073","display_name":"National University of Mar del Plata","ror":"https://ror.org/055eqsb67","country_code":"AR","type":"education","lineage":["https://openalex.org/I189075073"]}],"countries":["AR"],"is_corresponding":true,"raw_author_name":"F Nuno Almirantearena","raw_affiliation_strings":["Electronics Department, National University of Mardel Plata, Mar del Plata, Argentina"],"affiliations":[{"raw_affiliation_string":"Electronics Department, National University of Mardel Plata, Mar del Plata, Argentina","institution_ids":["https://openalex.org/I189075073"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040363799","display_name":"F Clara","orcid":"https://orcid.org/0000-0003-4771-7167"},"institutions":[{"id":"https://openalex.org/I189075073","display_name":"National University of Mar del Plata","ror":"https://ror.org/055eqsb67","country_code":"AR","type":"education","lineage":["https://openalex.org/I189075073"]}],"countries":["AR"],"is_corresponding":false,"raw_author_name":"F Clara","raw_affiliation_strings":["Electronics Department, National University of Mardel Plata, Mar del Plata, Argentina"],"affiliations":[{"raw_affiliation_string":"Electronics Department, National University of Mardel Plata, Mar del Plata, Argentina","institution_ids":["https://openalex.org/I189075073"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103334797","display_name":"Pedro Burillo L\u00f3pez","orcid":null},"institutions":[{"id":"https://openalex.org/I88155538","display_name":"Universidad de Navarra","ror":"https://ror.org/02rxc7m23","country_code":"ES","type":"education","lineage":["https://openalex.org/I88155538"]},{"id":"https://openalex.org/I175051016","display_name":"Universidad Publica de Navarra","ror":"https://ror.org/02z0cah89","country_code":"ES","type":"education","lineage":["https://openalex.org/I175051016"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"P Burillo Lopez","raw_affiliation_strings":["Department of Automatic and Computation, Public University of Navarra, Navarre, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Automatic and Computation, Public University of Navarra, Navarre, Spain","institution_ids":["https://openalex.org/I175051016","https://openalex.org/I88155538"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5078597444"],"corresponding_institution_ids":["https://openalex.org/I189075073"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.10332346,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":"8","issue":null,"first_page":"399","last_page":"403"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9944999814033508,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10429","display_name":"EEG and Brain-Computer Interfaces","score":0.9833999872207642,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/heart-rate-variability","display_name":"Heart rate variability","score":0.8145009279251099},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6463926434516907},{"id":"https://openalex.org/keywords/frequency-domain","display_name":"Frequency domain","score":0.509715735912323},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.5089030265808105},{"id":"https://openalex.org/keywords/fuzzy-logic","display_name":"Fuzzy logic","score":0.4886806309223175},{"id":"https://openalex.org/keywords/time-domain","display_name":"Time domain","score":0.4228523373603821},{"id":"https://openalex.org/keywords/entropy","display_name":"Entropy (arrow of time)","score":0.41469377279281616},{"id":"https://openalex.org/keywords/heart-rate","display_name":"Heart rate","score":0.30150923132896423},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.2779632806777954},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.20490530133247375},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.1840241253376007},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.17783471941947937},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.15584853291511536},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1375236213207245}],"concepts":[{"id":"https://openalex.org/C71635504","wikidata":"https://www.wikidata.org/wiki/Q933954","display_name":"Heart rate variability","level":4,"score":0.8145009279251099},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6463926434516907},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.509715735912323},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.5089030265808105},{"id":"https://openalex.org/C58166","wikidata":"https://www.wikidata.org/wiki/Q224821","display_name":"Fuzzy logic","level":2,"score":0.4886806309223175},{"id":"https://openalex.org/C103824480","wikidata":"https://www.wikidata.org/wiki/Q185889","display_name":"Time domain","level":2,"score":0.4228523373603821},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.41469377279281616},{"id":"https://openalex.org/C2777953023","wikidata":"https://www.wikidata.org/wiki/Q1073121","display_name":"Heart rate","level":3,"score":0.30150923132896423},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.2779632806777954},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.20490530133247375},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.1840241253376007},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.17783471941947937},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.15584853291511536},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1375236213207245},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/fskd.2012.6233719","is_oa":false,"landing_page_url":"https://doi.org/10.1109/fskd.2012.6233719","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 9th International Conference on Fuzzy Systems and Knowledge Discovery","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4","score":0.5199999809265137}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":39,"referenced_works":["https://openalex.org/W596238075","https://openalex.org/W1572778877","https://openalex.org/W1883664232","https://openalex.org/W1898259180","https://openalex.org/W1967900132","https://openalex.org/W1980036384","https://openalex.org/W1985853907","https://openalex.org/W2011291958","https://openalex.org/W2018867844","https://openalex.org/W2023233510","https://openalex.org/W2040121225","https://openalex.org/W2042331002","https://openalex.org/W2047431606","https://openalex.org/W2050057188","https://openalex.org/W2053924421","https://openalex.org/W2054421446","https://openalex.org/W2056021265","https://openalex.org/W2068846178","https://openalex.org/W2088795046","https://openalex.org/W2093671121","https://openalex.org/W2095233676","https://openalex.org/W2108000303","https://openalex.org/W2111499159","https://openalex.org/W2113640125","https://openalex.org/W2120332880","https://openalex.org/W2121625917","https://openalex.org/W2123487017","https://openalex.org/W2132839152","https://openalex.org/W2151012776","https://openalex.org/W2155659544","https://openalex.org/W2167854209","https://openalex.org/W2169058389","https://openalex.org/W2170853747","https://openalex.org/W2285072859","https://openalex.org/W2313938778","https://openalex.org/W2759778190","https://openalex.org/W4230085330","https://openalex.org/W4251171453","https://openalex.org/W6744499882"],"related_works":["https://openalex.org/W2905460105","https://openalex.org/W2782295999","https://openalex.org/W2162306796","https://openalex.org/W1970292246","https://openalex.org/W2015118744","https://openalex.org/W2016162169","https://openalex.org/W4247952185","https://openalex.org/W1642462315","https://openalex.org/W2005619368","https://openalex.org/W1879092539"],"abstract_inverted_index":{"The":[0,114],"aim":[1],"of":[2,11,41,59,78,107,144,153,168,220],"this":[3,47],"investigation":[4],"was":[5,81,224],"to":[6,96,109,252],"determine":[7],"the":[8,12,25,54,57,60,73,84,105,118,122,128,136,140,148,151,154,169,175,182,202,206,210,218,221,227,234,237,253,260],"fuzziness":[9,219],"values":[10,58,152,204],"variables":[13,61,155,184,192,203,235],"that":[14,121,212,233],"represent":[15],"heart":[16],"rate":[17],"variability":[18,164],"(HRV)":[19],"for":[20],"three":[21,123],"age":[22,257],"groups,":[23],"using":[24,195,226],"fuzzy":[26,199,229],"entropy":[27,230],"function.":[28],"We":[29],"used":[30],"one":[31],"hundred":[32],"and":[33,104,139,157,162,185,190,197,240,255],"four":[34],"waves":[35],"taken":[36,173],"from":[37],"one-minute":[38],"electrocardiogram":[39],"(ECG)":[40],"males":[42],"subjects":[43],"20-70":[44],"years":[45],"old,":[46],"being":[48],"a":[49],"short-term":[50],"HRV":[51,213],"measure.":[52],"In":[53,72,147],"time":[55],"domain,":[56,75],"SDNN,":[62,243],"HR,":[63],"STDHR,":[64],"RMSSD,":[65,244],"NN50,":[66,245],"PNN50,":[67,246],"Triangle,":[68],"TINN,":[69],"were":[70,165,172,188,193],"calculated.":[71,166],"frequency":[74,89,93,100,124,239],"spectral":[76],"analysis":[77],"continuous":[79,228],"power":[80,130],"conducted,":[82],"quantifying":[83],"following":[85],"powers:":[86],"very":[87],"low":[88,92],"(VLF,0-0.04":[90],"Hz),":[91,98,103],"(LF,":[94],"0.04":[95],"0.15":[97],"high":[99],"(HF,":[101],"0.15-0.4":[102],"ratio":[106],"LF":[108],"HF":[110],"(LF":[111],"/":[112],"HF).":[113],"existing":[115],"literature":[116],"on":[117],"subject":[119],"states,":[120],"bands":[125],"into":[126],"which":[127,159],"total":[129],"is":[131],"divided":[132],"are":[133],"similar":[134],"regardless":[135],"age,":[137],"sex":[138],"presence":[141],"or":[142],"absence":[143],"coronary":[145],"disease.":[146],"nonlinear":[149,241],"domain":[150],"SD1":[156],"SD2,":[158],"describe":[160],"short":[161],"long-term":[163],"Measures":[167],"selected":[170],"patients":[171],"in":[174,205,236],"evening":[176],"after":[177],"10":[178],"minutes":[179],"rest.":[180],"Then":[181,217],"linguistic":[183,186,222],"terms":[187,223],"defined":[189],"such":[191],"fuzzyfied":[194],"triangular":[196],"trapezoidal":[198],"numbers.":[200],"All":[201],"proposed":[207],"conditions,":[208],"satisfy":[209],"property":[211],"decreases":[214],"with":[215],"age.":[216],"analyzed":[225],"thus":[231],"concluding":[232],"time,":[238],"domains:":[242],"LF,":[247],"HF,":[248],"SD1,":[249],"SD2":[250],"corresponding":[251],"first":[254],"second":[256],"group":[258],"have":[259],"greatest":[261],"disorder.":[262]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
