{"id":"https://openalex.org/W2043788667","doi":"https://doi.org/10.1109/iembs.2011.6090745","title":"Interpretation of coarse-graining of Lempel-Ziv complexity measure in ECG signal analysis","display_name":"Interpretation of coarse-graining of Lempel-Ziv complexity measure in ECG signal analysis","publication_year":2011,"publication_date":"2011-08-01","ids":{"openalex":"https://openalex.org/W2043788667","doi":"https://doi.org/10.1109/iembs.2011.6090745","mag":"2043788667","pmid":"https://pubmed.ncbi.nlm.nih.gov/22254902"},"language":"en","primary_location":{"id":"doi:10.1109/iembs.2011.6090745","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iembs.2011.6090745","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society","raw_type":"proceedings-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/A5012385922","display_name":"Shijie Zhou","orcid":"https://orcid.org/0000-0001-8314-754X"},"institutions":[{"id":"https://openalex.org/I129902397","display_name":"Dalhousie University","ror":"https://ror.org/01e6qks80","country_code":"CA","type":"education","lineage":["https://openalex.org/I129902397"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Shijie Zhou","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS B3J 2X4, Canada.shijiezhou@dal.ca","Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS B3J 2X4, Canada.shijiezhou@dal.ca","institution_ids":["https://openalex.org/I129902397"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS, Canada","institution_ids":["https://openalex.org/I129902397"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100739120","display_name":"Zichen Zhang","orcid":"https://orcid.org/0000-0002-8919-6243"},"institutions":[{"id":"https://openalex.org/I129902397","display_name":"Dalhousie University","ror":"https://ror.org/01e6qks80","country_code":"CA","type":"education","lineage":["https://openalex.org/I129902397"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Zichen Zhang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS, Canada","institution_ids":["https://openalex.org/I129902397"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5010340252","display_name":"Jason Gu","orcid":"https://orcid.org/0000-0002-7626-1077"},"institutions":[{"id":"https://openalex.org/I129902397","display_name":"Dalhousie University","ror":"https://ror.org/01e6qks80","country_code":"CA","type":"education","lineage":["https://openalex.org/I129902397"]},{"id":"https://openalex.org/I167383011","display_name":"Henan University of Science and Technology","ror":"https://ror.org/05d80kz58","country_code":"CN","type":"education","lineage":["https://openalex.org/I167383011"]}],"countries":["CA","CN"],"is_corresponding":false,"raw_author_name":"J. Gu","raw_affiliation_strings":["Electronic & Information Engineering College, Henan University of Science and Technology, Henan, China","School of Biomedical Engineering, and the Department of Electrical and Computer, Dalhousie University, Halifax, NS, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electronic & Information Engineering College, Henan University of Science and Technology, Henan, China","institution_ids":["https://openalex.org/I167383011"]},{"raw_affiliation_string":"School of Biomedical Engineering, and the Department of Electrical and Computer, Dalhousie University, Halifax, NS, Canada","institution_ids":["https://openalex.org/I129902397"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.396,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.69192335,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"2011","issue":null,"first_page":"2716","last_page":"2719"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11021","display_name":"ECG Monitoring and Analysis","score":0.9991000294685364,"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/T11021","display_name":"ECG Monitoring and Analysis","score":0.9991000294685364,"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":0.9987999796867371,"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/T10688","display_name":"Image and Signal Denoising Methods","score":0.9786999821662903,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/interpretability","display_name":"Interpretability","score":0.8128905296325684},{"id":"https://openalex.org/keywords/granularity","display_name":"Granularity","score":0.674026370048523},{"id":"https://openalex.org/keywords/measure","display_name":"Measure (data warehouse)","score":0.6310753226280212},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.5342539548873901},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.48473188281059265},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.46353864669799805},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4525260031223297},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.42635589838027954},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3981788158416748},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3671087622642517},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.36658909916877747}],"concepts":[{"id":"https://openalex.org/C2781067378","wikidata":"https://www.wikidata.org/wiki/Q17027399","display_name":"Interpretability","level":2,"score":0.8128905296325684},{"id":"https://openalex.org/C177774035","wikidata":"https://www.wikidata.org/wiki/Q1246948","display_name":"Granularity","level":2,"score":0.674026370048523},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.6310753226280212},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.5342539548873901},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.48473188281059265},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.46353864669799805},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4525260031223297},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.42635589838027954},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3981788158416748},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3671087622642517},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.36658909916877747},{"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/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","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":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D004562","descriptor_name":"Electrocardiography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D004562","descriptor_name":"Electrocardiography","qualifier_ui":"Q000379","qualifier_name":"methods","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}],"locations_count":2,"locations":[{"id":"doi:10.1109/iembs.2011.6090745","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iembs.2011.6090745","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society","raw_type":"proceedings-article"},{"id":"pmid:22254902","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/22254902","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}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1983988723","https://openalex.org/W1997598796","https://openalex.org/W2000832731","https://openalex.org/W2055663008","https://openalex.org/W2073169220","https://openalex.org/W2077770566","https://openalex.org/W2106664133","https://openalex.org/W2122671679","https://openalex.org/W2130774507","https://openalex.org/W2134383396","https://openalex.org/W2137478377","https://openalex.org/W2142509031","https://openalex.org/W2144288706"],"related_works":["https://openalex.org/W2905433371","https://openalex.org/W2888392564","https://openalex.org/W4310278675","https://openalex.org/W4388422664","https://openalex.org/W4390569940","https://openalex.org/W4361193272","https://openalex.org/W2963326959","https://openalex.org/W4388685194","https://openalex.org/W4312407344","https://openalex.org/W2354431794"],"abstract_inverted_index":{"Lempel-Ziv":[0],"(LZ)":[1],"complexity":[2,26],"measure":[3,27],"has":[4],"been":[5,66],"applied":[6],"to":[7,94],"classify":[8],"ventricular":[9,13],"tachycardia":[10],"(VT)":[11],"and":[12,37,54,84,101],"fibrillation":[14],"(VF).":[15],"The":[16,43],"coarse-graining":[17,47,78],"process":[18,79],"plays":[19],"a":[20,111],"crucial":[21],"role":[22],"in":[23,39,50,69,99],"the":[24,32,58,70,95],"LZ":[25],"analysis,":[28],"which":[29],"directly":[30],"affects":[31],"separating":[33],"performance":[34,59,107],"of":[35,45,60],"VT":[36,100],"VF":[38,102],"ECG":[40,51,61],"signal":[41,52],"analysis.":[42],"question":[44],"different":[46],"approaches":[48,98],"interpretability":[49],"analysis":[53],"their":[55],"influence":[56],"on":[57],"classification":[62],"have":[63],"not":[64],"yet":[65],"previously":[67],"addressed":[68],"literature.":[71],"In":[72],"this":[73],"paper,":[74],"we":[75],"present":[76],"four":[77],"approaches,":[80],"K-Means,":[81],"Mean,":[82],"Median":[83],"Mid-point.":[85],"Our":[86],"test":[87],"shows":[88],"that":[89],"K-Means":[90],"algorithm":[91],"is":[92,108],"superior":[93],"other":[96],"three":[97],"separation":[103],"rate,":[104],"Particularly,":[105],"optimum":[106],"achieved":[109],"at":[110],"8-second":[112],"window":[113],"length.":[114]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":3},{"year":2013,"cited_by_count":2}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}