{"id":"https://openalex.org/W1994703572","doi":"https://doi.org/10.1109/icassp.2013.6637861","title":"Automatic classification of systolic heart murmurs","display_name":"Automatic classification of systolic heart murmurs","publication_year":2013,"publication_date":"2013-05-01","ids":{"openalex":"https://openalex.org/W1994703572","doi":"https://doi.org/10.1109/icassp.2013.6637861","mag":"1994703572"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2013.6637861","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2013.6637861","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Conference on Acoustics, Speech and Signal Processing","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/A5101734352","display_name":"Maria Markaki","orcid":"https://orcid.org/0000-0001-5779-2078"},"institutions":[{"id":"https://openalex.org/I142617266","display_name":"University of Crete","ror":"https://ror.org/00dr28g20","country_code":"GR","type":"education","lineage":["https://openalex.org/I142617266"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"M. Markaki","raw_affiliation_strings":["Computer Science Department, University of Crete, Greece","Computer Science Dept, University of Crete, Heraklion, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Science Department, University of Crete, Greece","institution_ids":["https://openalex.org/I142617266"]},{"raw_affiliation_string":"Computer Science Dept, University of Crete, Heraklion, Greece","institution_ids":["https://openalex.org/I142617266"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067525228","display_name":"Ioannis Germanakis","orcid":"https://orcid.org/0000-0002-5893-2121"},"institutions":[{"id":"https://openalex.org/I142617266","display_name":"University of Crete","ror":"https://ror.org/00dr28g20","country_code":"GR","type":"education","lineage":["https://openalex.org/I142617266"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"I. Germanakis","raw_affiliation_strings":["Dept of Pediatrics, Faculty of Medicine, University of Crete, Greece","Department of Pediatrics, University of Crete, Heraklion, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept of Pediatrics, Faculty of Medicine, University of Crete, Greece","institution_ids":["https://openalex.org/I142617266"]},{"raw_affiliation_string":"Department of Pediatrics, University of Crete, Heraklion, Greece","institution_ids":["https://openalex.org/I142617266"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035745788","display_name":"Yannis Stylianou","orcid":null},"institutions":[{"id":"https://openalex.org/I142617266","display_name":"University of Crete","ror":"https://ror.org/00dr28g20","country_code":"GR","type":"education","lineage":["https://openalex.org/I142617266"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Y. Stylianou","raw_affiliation_strings":["Computer Science Department, University of Crete, Greece","Computer Science Dept, University of Crete, Heraklion, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Science Department, University of Crete, Greece","institution_ids":["https://openalex.org/I142617266"]},{"raw_affiliation_string":"Computer Science Dept, University of Crete, Heraklion, Greece","institution_ids":["https://openalex.org/I142617266"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4758,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.69712428,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1301","last_page":"1305"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12419","display_name":"Phonocardiography and Auscultation Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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/T12419","display_name":"Phonocardiography and Auscultation Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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/T11021","display_name":"ECG Monitoring and Analysis","score":0.9918000102043152,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9837999939918518,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/auscultation","display_name":"Auscultation","score":0.8951992392539978},{"id":"https://openalex.org/keywords/spectrogram","display_name":"Spectrogram","score":0.8196734189987183},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.5899156928062439},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.555009663105011},{"id":"https://openalex.org/keywords/heart-sounds","display_name":"Heart sounds","score":0.548437774181366},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4922758638858795},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.4797990620136261},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.4695596992969513},{"id":"https://openalex.org/keywords/heart-murmur","display_name":"Heart murmur","score":0.4562678039073944},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.4520634412765503},{"id":"https://openalex.org/keywords/confidence-interval","display_name":"Confidence interval","score":0.4461270570755005},{"id":"https://openalex.org/keywords/support-vector-machine","display_name":"Support vector machine","score":0.42086923122406006},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3973264694213867},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3439306914806366},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.28238266706466675},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.26379790902137756},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.25074416399002075},{"id":"https://openalex.org/keywords/digital-signal-processing","display_name":"Digital signal processing","score":0.12399065494537354}],"concepts":[{"id":"https://openalex.org/C2777324038","wikidata":"https://www.wikidata.org/wiki/Q779054","display_name":"Auscultation","level":2,"score":0.8951992392539978},{"id":"https://openalex.org/C45273575","wikidata":"https://www.wikidata.org/wiki/Q578970","display_name":"Spectrogram","level":2,"score":0.8196734189987183},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.5899156928062439},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.555009663105011},{"id":"https://openalex.org/C2779435589","wikidata":"https://www.wikidata.org/wiki/Q967103","display_name":"Heart sounds","level":2,"score":0.548437774181366},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4922758638858795},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.4797990620136261},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.4695596992969513},{"id":"https://openalex.org/C2780379053","wikidata":"https://www.wikidata.org/wiki/Q1060911","display_name":"Heart murmur","level":2,"score":0.4562678039073944},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.4520634412765503},{"id":"https://openalex.org/C44249647","wikidata":"https://www.wikidata.org/wiki/Q208498","display_name":"Confidence interval","level":2,"score":0.4461270570755005},{"id":"https://openalex.org/C12267149","wikidata":"https://www.wikidata.org/wiki/Q282453","display_name":"Support vector machine","level":2,"score":0.42086923122406006},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3973264694213867},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3439306914806366},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.28238266706466675},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.26379790902137756},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.25074416399002075},{"id":"https://openalex.org/C84462506","wikidata":"https://www.wikidata.org/wiki/Q173142","display_name":"Digital signal processing","level":2,"score":0.12399065494537354},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2013.6637861","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2013.6637861","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.7200000286102295,"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1586405805","https://openalex.org/W1974388742","https://openalex.org/W1996346147","https://openalex.org/W2013912476","https://openalex.org/W2021134456","https://openalex.org/W2026417758","https://openalex.org/W2028114000","https://openalex.org/W2049734941","https://openalex.org/W2054291958","https://openalex.org/W2081444196","https://openalex.org/W2086982570","https://openalex.org/W2088690438","https://openalex.org/W2125835915","https://openalex.org/W2130087670","https://openalex.org/W2140147143","https://openalex.org/W2140198624","https://openalex.org/W2145907774","https://openalex.org/W2169429233","https://openalex.org/W2188563164","https://openalex.org/W2233636230","https://openalex.org/W6689815182"],"related_works":["https://openalex.org/W2462513779","https://openalex.org/W2066804906","https://openalex.org/W1982614964","https://openalex.org/W4246352510","https://openalex.org/W310243274","https://openalex.org/W2156416747","https://openalex.org/W3191193899","https://openalex.org/W2013970413","https://openalex.org/W1601748943","https://openalex.org/W2062210329"],"abstract_inverted_index":{"This":[0],"paper":[1],"describes":[2],"a":[3,55],"system":[4,120],"for":[5,86],"discriminating":[6],"innocent":[7],"from":[8,63],"pathologic":[9],"systolic":[10,61],"heart":[11],"murmurs":[12,62],"in":[13],"children":[14],"based":[15,141],"on":[16,54,131,142],"auscultation":[17,58],"recordings.":[18],"For":[19],"sound":[20],"signal":[21,139],"analysis":[22],"the":[23,35,64,88,104,117,124,132],"use":[24],"of":[25,34,57,67,75,96,107,116,127],"reassigned":[26],"spectrogram":[27],"is":[28,121],"suggested.":[29],"Both":[30],"dimensions":[31,48],"and":[32,100],"noise":[33],"time-frequency":[36],"representation":[37],"were":[38,49],"significantly":[39],"reduced":[40],"using":[41],"higher":[42],"order":[43],"singular":[44],"value":[45],"decomposition.":[46],"Optimal":[47],"selected":[50],"through":[51],"cross-validation":[52],"experiments":[53],"database":[56,70],"recordings":[59,74],"with":[60,73],"University":[65],"Hospital":[66],"Heraklion.":[68],"The":[69,114],"only":[71],"consisted":[72],"high":[76],"misclassification":[77],"rate":[78],"by":[79],"general":[80],"practitioners.":[81],"Using":[82],"support":[83],"vector":[84],"machines":[85],"classification,":[87],"suggested":[89,118],"approach":[90],"achieved":[91],"an":[92,101],"Equal":[93],"Error":[94],"Rate":[95],"6.71":[97],"\u00b1":[98,109],"1.18%":[99],"Area":[102],"Under":[103],"Curve":[105],"score":[106],"0.9758":[108],"0.0053":[110],"(95%":[111],"confidence":[112],"intervals).":[113],"performance":[115],"classification":[119],"comparable":[122],"to":[123],"reported":[125],"accuracy":[126],"experienced":[128],"pediatric":[129],"cardiologists":[130],"same":[133],"database,":[134],"while":[135],"it":[136],"outperforms":[137],"alternative":[138],"representations":[140],"simple":[143],"STFT":[144],"schemes.":[145]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
