{"id":"https://openalex.org/W2019098827","doi":"https://doi.org/10.1109/embc.2013.6611062","title":"Estimating relative respiratory effort from features of photo-plethysmography signal","display_name":"Estimating relative respiratory effort from features of photo-plethysmography signal","publication_year":2013,"publication_date":"2013-07-01","ids":{"openalex":"https://openalex.org/W2019098827","doi":"https://doi.org/10.1109/embc.2013.6611062","mag":"2019098827","pmid":"https://pubmed.ncbi.nlm.nih.gov/24111249"},"language":"en","primary_location":{"id":"doi:10.1109/embc.2013.6611062","is_oa":false,"landing_page_url":"https://doi.org/10.1109/embc.2013.6611062","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://figshare.com/articles/conference_contribution/Estimating_relative_respiratory_effort_from_features_of_Photo-Plethysmography_signal/20899180","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5053525471","display_name":"Ahsan H. Khandoker","orcid":"https://orcid.org/0000-0002-0636-1646"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":true,"raw_author_name":"Ahsan H. Khandoker","raw_affiliation_strings":["The University of Melbourne, Melbourne, VIC, AU","Electr. & Electron. Eng. Dept., Univ. of Melbourne, Melbourne, VIC, Australia"],"affiliations":[{"raw_affiliation_string":"The University of Melbourne, Melbourne, VIC, AU","institution_ids":["https://openalex.org/I165779595"]},{"raw_affiliation_string":"Electr. & Electron. Eng. Dept., Univ. of Melbourne, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001203013","display_name":"Chandan Karmakar","orcid":"https://orcid.org/0000-0003-1814-0856"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Chandan K. Karmakar","raw_affiliation_strings":["Electrical and Electronic Engineering Department, University of Melbourne, Melbourne, VIC, Australia","Electr. & Electron. Eng. Dept., Univ. of Melbourne, Melbourne, VIC, Australia"],"affiliations":[{"raw_affiliation_string":"Electrical and Electronic Engineering Department, University of Melbourne, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I165779595"]},{"raw_affiliation_string":"Electr. & Electron. Eng. Dept., Univ. of Melbourne, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058492122","display_name":"Thomas Penzel","orcid":"https://orcid.org/0000-0002-4304-0112"},"institutions":[{"id":"https://openalex.org/I7877124","display_name":"Charit\u00e9 - Universit\u00e4tsmedizin Berlin","ror":"https://ror.org/001w7jn25","country_code":"DE","type":"funder","lineage":["https://openalex.org/I7877124"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Thomas Penzel","raw_affiliation_strings":["Interdisciplinary Sleep Medicine Center, Department for Cardiology, Charite Universit\u00e4tsmedizin, Berlin, Germany","Dept. for Cardiology, Charite Univ.medizin, Berlin, Germany"],"affiliations":[{"raw_affiliation_string":"Interdisciplinary Sleep Medicine Center, Department for Cardiology, Charite Universit\u00e4tsmedizin, Berlin, Germany","institution_ids":["https://openalex.org/I7877124"]},{"raw_affiliation_string":"Dept. for Cardiology, Charite Univ.medizin, Berlin, Germany","institution_ids":["https://openalex.org/I7877124"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074444871","display_name":"Martin Glos","orcid":"https://orcid.org/0000-0002-7819-0444"},"institutions":[{"id":"https://openalex.org/I7877124","display_name":"Charit\u00e9 - Universit\u00e4tsmedizin Berlin","ror":"https://ror.org/001w7jn25","country_code":"DE","type":"funder","lineage":["https://openalex.org/I7877124"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Martin Glos","raw_affiliation_strings":["Interdisciplinary Sleep Medicine Center, Department for Cardiology, Charite Universit\u00e4tsmedizin, Berlin, Germany","Dept. for Cardiology, Charite Univ.medizin, Berlin, Germany"],"affiliations":[{"raw_affiliation_string":"Interdisciplinary Sleep Medicine Center, Department for Cardiology, Charite Universit\u00e4tsmedizin, Berlin, Germany","institution_ids":["https://openalex.org/I7877124"]},{"raw_affiliation_string":"Dept. for Cardiology, Charite Univ.medizin, Berlin, Germany","institution_ids":["https://openalex.org/I7877124"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110530318","display_name":"Christoph Schoebel","orcid":null},"institutions":[{"id":"https://openalex.org/I7877124","display_name":"Charit\u00e9 - Universit\u00e4tsmedizin Berlin","ror":"https://ror.org/001w7jn25","country_code":"DE","type":"funder","lineage":["https://openalex.org/I7877124"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Christoph Schoebel","raw_affiliation_strings":["Interdisciplinary Sleep Medicine Center, Department for Cardiology, Charite Universit\u00e4tsmedizin, Berlin, Germany","Dept. for Cardiology, Charite Univ.medizin, Berlin, Germany"],"affiliations":[{"raw_affiliation_string":"Interdisciplinary Sleep Medicine Center, Department for Cardiology, Charite Universit\u00e4tsmedizin, Berlin, Germany","institution_ids":["https://openalex.org/I7877124"]},{"raw_affiliation_string":"Dept. for Cardiology, Charite Univ.medizin, Berlin, Germany","institution_ids":["https://openalex.org/I7877124"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080554686","display_name":"Marimuthu Palaniswami","orcid":"https://orcid.org/0000-0002-3635-4252"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"M. Palaniswami","raw_affiliation_strings":["Electrical and Electronic Engineering Department, University of Melbourne, Melbourne, VIC, Australia","Electr. & Electron. Eng. Dept., Univ. of Melbourne, Melbourne, VIC, Australia"],"affiliations":[{"raw_affiliation_string":"Electrical and Electronic Engineering Department, University of Melbourne, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I165779595"]},{"raw_affiliation_string":"Electr. & Electron. Eng. Dept., Univ. of Melbourne, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I165779595"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5053525471"],"corresponding_institution_ids":["https://openalex.org/I165779595"],"apc_list":null,"apc_paid":null,"fwci":0.2053,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.56886644,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"2013","issue":null,"first_page":"6575","last_page":"6578"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9998999834060669,"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/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9980999827384949,"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/T11700","display_name":"Hemodynamic Monitoring and Therapy","score":0.9955000281333923,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/respiratory-system","display_name":"Respiratory system","score":0.6563010215759277},{"id":"https://openalex.org/keywords/plethysmograph","display_name":"Plethysmograph","score":0.6464937925338745},{"id":"https://openalex.org/keywords/photoplethysmogram","display_name":"Photoplethysmogram","score":0.6292281150817871},{"id":"https://openalex.org/keywords/pulse","display_name":"Pulse (music)","score":0.6246218681335449},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.5942739844322205},{"id":"https://openalex.org/keywords/pulse-wave-analysis","display_name":"Pulse Wave Analysis","score":0.54256671667099},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4463474154472351},{"id":"https://openalex.org/keywords/respiratory-frequency","display_name":"Respiratory frequency","score":0.4317208230495453},{"id":"https://openalex.org/keywords/biomedical-engineering","display_name":"Biomedical engineering","score":0.39087584614753723},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.3631829023361206},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.3398318886756897},{"id":"https://openalex.org/keywords/pulse-wave","display_name":"Pulse wave","score":0.29097992181777954},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.2352341115474701},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.22923648357391357},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.198043555021286},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.19491693377494812},{"id":"https://openalex.org/keywords/tidal-volume","display_name":"Tidal volume","score":0.1884540617465973},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.15051335096359253}],"concepts":[{"id":"https://openalex.org/C534529494","wikidata":"https://www.wikidata.org/wiki/Q7891","display_name":"Respiratory system","level":2,"score":0.6563010215759277},{"id":"https://openalex.org/C73362275","wikidata":"https://www.wikidata.org/wiki/Q181277","display_name":"Plethysmograph","level":2,"score":0.6464937925338745},{"id":"https://openalex.org/C116390426","wikidata":"https://www.wikidata.org/wiki/Q7187885","display_name":"Photoplethysmogram","level":3,"score":0.6292281150817871},{"id":"https://openalex.org/C2780167933","wikidata":"https://www.wikidata.org/wiki/Q1550652","display_name":"Pulse (music)","level":3,"score":0.6246218681335449},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.5942739844322205},{"id":"https://openalex.org/C2908916285","wikidata":"https://www.wikidata.org/wiki/Q2118022","display_name":"Pulse Wave Analysis","level":4,"score":0.54256671667099},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4463474154472351},{"id":"https://openalex.org/C2911021406","wikidata":"https://www.wikidata.org/wiki/Q754250","display_name":"Respiratory frequency","level":4,"score":0.4317208230495453},{"id":"https://openalex.org/C136229726","wikidata":"https://www.wikidata.org/wiki/Q327092","display_name":"Biomedical engineering","level":1,"score":0.39087584614753723},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.3631829023361206},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.3398318886756897},{"id":"https://openalex.org/C172321821","wikidata":"https://www.wikidata.org/wiki/Q7259685","display_name":"Pulse wave","level":3,"score":0.29097992181777954},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.2352341115474701},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.22923648357391357},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.198043555021286},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.19491693377494812},{"id":"https://openalex.org/C2777257755","wikidata":"https://www.wikidata.org/wiki/Q3493813","display_name":"Tidal volume","level":3,"score":0.1884540617465973},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.15051335096359253},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.0},{"id":"https://openalex.org/C134652429","wikidata":"https://www.wikidata.org/wiki/Q1052698","display_name":"Jitter","level":2,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","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":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012129","descriptor_name":"Respiratory Function Tests","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012129","descriptor_name":"Respiratory Function Tests","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012129","descriptor_name":"Respiratory Function Tests","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012891","descriptor_name":"Sleep Apnea Syndromes","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false},{"descriptor_ui":"D012891","descriptor_name":"Sleep Apnea Syndromes","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false},{"descriptor_ui":"D012891","descriptor_name":"Sleep Apnea Syndromes","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false},{"descriptor_ui":"D017156","descriptor_name":"Photoplethysmography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017156","descriptor_name":"Photoplethysmography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017156","descriptor_name":"Photoplethysmography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017286","descriptor_name":"Polysomnography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017286","descriptor_name":"Polysomnography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017286","descriptor_name":"Polysomnography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D025341","descriptor_name":"Principal Component Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D025341","descriptor_name":"Principal Component Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D025341","descriptor_name":"Principal Component Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D058067","descriptor_name":"Wavelet Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D058067","descriptor_name":"Wavelet Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D058067","descriptor_name":"Wavelet Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":4,"locations":[{"id":"doi:10.1109/embc.2013.6611062","is_oa":false,"landing_page_url":"https://doi.org/10.1109/embc.2013.6611062","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)","raw_type":"proceedings-article"},{"id":"pmid:24111249","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/24111249","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":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","raw_type":null},{"id":"pmh:oai:dro.deakin.edu.au:DU:30087407","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306402457","display_name":"Deakin Research Online (Deakin University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I149704539","host_organization_name":"Deakin University","host_organization_lineage":["https://openalex.org/I149704539"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference Paper"},{"id":"pmh:oai:figshare.com:article/20899180","is_oa":true,"landing_page_url":"https://figshare.com/articles/conference_contribution/Estimating_relative_respiratory_effort_from_features_of_Photo-Plethysmography_signal/20899180","pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"}],"best_oa_location":{"id":"pmh:oai:figshare.com:article/20899180","is_oa":true,"landing_page_url":"https://figshare.com/articles/conference_contribution/Estimating_relative_respiratory_effort_from_features_of_Photo-Plethysmography_signal/20899180","pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320317536","display_name":"ResMed","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1656092392","https://openalex.org/W1996079749","https://openalex.org/W2028260206","https://openalex.org/W2125109199","https://openalex.org/W2158361166"],"related_works":["https://openalex.org/W2414028099","https://openalex.org/W2414250197","https://openalex.org/W2384584038","https://openalex.org/W4200107443","https://openalex.org/W638376227","https://openalex.org/W2901877124","https://openalex.org/W2120037269","https://openalex.org/W2048500805","https://openalex.org/W2043326433","https://openalex.org/W2560565468"],"abstract_inverted_index":{"The":[0],"gold":[1],"standard":[2],"method":[3],"for":[4],"measuring":[5],"respiratory":[6,31,38,55,59,94],"effort":[7,95],"(esophageal":[8],"pressure":[9,83],"measurement)":[10],"is":[11],"invasive,":[12],"uncomfortable,":[13],"and":[14,47,108],"itself":[15],"can":[16],"disrupt":[17],"sleep.":[18],"As":[19],"a":[20,51],"consequence,":[21],"majority":[22],"of":[23,54,106,114],"sleep":[24],"studies":[25],"use":[26],"an":[27],"alternate":[28],"sensor,":[29],"typically":[30],"bands,":[32],"which,":[33],"however,":[34],"do":[35],"not":[36],"measure":[37],"effort.":[39,60],"Typically":[40],"they":[41],"indicate":[42],"changes":[43,80],"in":[44,81],"thoracic":[45],"volume,":[46],"so":[48],"are":[49],"more":[50],"secondary":[52],"sensor":[53],"movement":[56],"rather":[57],"than":[58],"In":[61],"this":[62],"study,":[63],"we":[64],"aim":[65],"to":[66,90,99],"look":[67],"at":[68],"how":[69],"features":[70],"extracted":[71],"from":[72],"finger":[73],"Photo":[74],"Plethysmogram":[75],"(PPG)":[76],"signals":[77,96],"correlate":[78],"with":[79],"esophageal":[82],"signal.":[84],"Principle":[85],"component":[86],"analysis":[87],"was":[88],"used":[89],"derive":[91],"the":[92],"relative":[93],"using":[97],"pulse":[98,100,102,107],"intervals,":[101],"wave":[103],"amplitudes,":[104],"area":[105],"wavelet":[109],"decomposed":[110],"band":[111],"(0.15~0.4":[112],"Hz)":[113],"PPG":[115],"signals.":[116]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
