{"id":"https://openalex.org/W2128197093","doi":"https://doi.org/10.1145/1774088.1774293","title":"Automatic K-complex detection using Hjorth parameters and fuzzy decision","display_name":"Automatic K-complex detection using Hjorth parameters and fuzzy decision","publication_year":2010,"publication_date":"2010-03-22","ids":{"openalex":"https://openalex.org/W2128197093","doi":"https://doi.org/10.1145/1774088.1774293","mag":"2128197093"},"language":"en","primary_location":{"id":"doi:10.1145/1774088.1774293","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1774088.1774293","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2010 ACM Symposium on Applied Computing","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/A5027044621","display_name":"Daria Migotina","orcid":"https://orcid.org/0000-0003-0182-6907"},"institutions":[{"id":"https://openalex.org/I141596103","display_name":"University of Lisbon","ror":"https://ror.org/01c27hj86","country_code":"PT","type":"education","lineage":["https://openalex.org/I141596103"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Daria Migotina","raw_affiliation_strings":["IST -- Technical University of Lisbon, Portugal"],"affiliations":[{"raw_affiliation_string":"IST -- Technical University of Lisbon, Portugal","institution_ids":["https://openalex.org/I141596103"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070765845","display_name":"Alessandro Pasquale De Rosa","orcid":"https://orcid.org/0000-0001-5165-3114"},"institutions":[{"id":"https://openalex.org/I141596103","display_name":"University of Lisbon","ror":"https://ror.org/01c27hj86","country_code":"PT","type":"education","lineage":["https://openalex.org/I141596103"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Agostinho Rosa","raw_affiliation_strings":["IST -- Technical University of Lisbon, Portugal"],"affiliations":[{"raw_affiliation_string":"IST -- Technical University of Lisbon, Portugal","institution_ids":["https://openalex.org/I141596103"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029045681","display_name":"Ana Fred","orcid":"https://orcid.org/0000-0003-1320-5024"},"institutions":[{"id":"https://openalex.org/I141596103","display_name":"University of Lisbon","ror":"https://ror.org/01c27hj86","country_code":"PT","type":"education","lineage":["https://openalex.org/I141596103"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Ana Fred","raw_affiliation_strings":["IST -- Technical University of Lisbon, Portugal"],"affiliations":[{"raw_affiliation_string":"IST -- Technical University of Lisbon, Portugal","institution_ids":["https://openalex.org/I141596103"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5027044621"],"corresponding_institution_ids":["https://openalex.org/I141596103"],"apc_list":null,"apc_paid":null,"fwci":0.6313,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.70604915,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"979","last_page":"980"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10429","display_name":"EEG and Brain-Computer Interfaces","score":0.9922999739646912,"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"}},"topics":[{"id":"https://openalex.org/T10429","display_name":"EEG and Brain-Computer Interfaces","score":0.9922999739646912,"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"}},{"id":"https://openalex.org/T11373","display_name":"Sleep and Work-Related Fatigue","score":0.9070000052452087,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/electroencephalography","display_name":"Electroencephalography","score":0.7172467112541199},{"id":"https://openalex.org/keywords/sleep-stages","display_name":"Sleep Stages","score":0.6996050477027893},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6791269183158875},{"id":"https://openalex.org/keywords/sleep-medicine","display_name":"Sleep medicine","score":0.5997443199157715},{"id":"https://openalex.org/keywords/sleep","display_name":"Sleep (system call)","score":0.5776607990264893},{"id":"https://openalex.org/keywords/fuzzy-logic","display_name":"Fuzzy logic","score":0.5572486519813538},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5501565933227539},{"id":"https://openalex.org/keywords/arousal","display_name":"Arousal","score":0.5177140235900879},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.4432676136493683},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3832918405532837},{"id":"https://openalex.org/keywords/polysomnography","display_name":"Polysomnography","score":0.2760680019855499},{"id":"https://openalex.org/keywords/neuroscience","display_name":"Neuroscience","score":0.20995399355888367},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.17325395345687866},{"id":"https://openalex.org/keywords/sleep-disorder","display_name":"Sleep disorder","score":0.10746410489082336}],"concepts":[{"id":"https://openalex.org/C522805319","wikidata":"https://www.wikidata.org/wiki/Q179965","display_name":"Electroencephalography","level":2,"score":0.7172467112541199},{"id":"https://openalex.org/C2910364982","wikidata":"https://www.wikidata.org/wiki/Q35831","display_name":"Sleep Stages","level":4,"score":0.6996050477027893},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6791269183158875},{"id":"https://openalex.org/C188394188","wikidata":"https://www.wikidata.org/wiki/Q744029","display_name":"Sleep medicine","level":4,"score":0.5997443199157715},{"id":"https://openalex.org/C2775841894","wikidata":"https://www.wikidata.org/wiki/Q4683692","display_name":"Sleep (system call)","level":2,"score":0.5776607990264893},{"id":"https://openalex.org/C58166","wikidata":"https://www.wikidata.org/wiki/Q224821","display_name":"Fuzzy logic","level":2,"score":0.5572486519813538},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5501565933227539},{"id":"https://openalex.org/C36951298","wikidata":"https://www.wikidata.org/wiki/Q379784","display_name":"Arousal","level":2,"score":0.5177140235900879},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.4432676136493683},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3832918405532837},{"id":"https://openalex.org/C2778205975","wikidata":"https://www.wikidata.org/wiki/Q1754874","display_name":"Polysomnography","level":3,"score":0.2760680019855499},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.20995399355888367},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.17325395345687866},{"id":"https://openalex.org/C1513209611","wikidata":"https://www.wikidata.org/wiki/Q177190","display_name":"Sleep disorder","level":3,"score":0.10746410489082336},{"id":"https://openalex.org/C169900460","wikidata":"https://www.wikidata.org/wiki/Q2200417","display_name":"Cognition","level":2,"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":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1774088.1774293","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1774088.1774293","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2010 ACM Symposium on Applied Computing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"No poverty","id":"https://metadata.un.org/sdg/1","score":0.6299999952316284}],"awards":[{"id":"https://openalex.org/G2960255949","display_name":null,"funder_award_id":"SFRH/BD/25294/2005","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"}],"funders":[{"id":"https://openalex.org/F4320334779","display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","ror":"https://ror.org/00snfqn58"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W2089554760","https://openalex.org/W2115690494","https://openalex.org/W2134050473","https://openalex.org/W2239215038","https://openalex.org/W2539875512","https://openalex.org/W6728585314"],"related_works":["https://openalex.org/W2802026353","https://openalex.org/W3081653163","https://openalex.org/W4315853058","https://openalex.org/W4385489261","https://openalex.org/W2114603675","https://openalex.org/W2071539815","https://openalex.org/W1966262416","https://openalex.org/W2064477575","https://openalex.org/W4377009940","https://openalex.org/W2183177610"],"abstract_inverted_index":{"K-complex":[0,96,120,147],"is":[1,58,121,137,150,155,170],"a":[2,38,44,93,99,122,143],"stereotyped":[3],"transient":[4],"wave":[5],"in":[6,50],"the":[7,30,48,51,54,62,90,167,173],"human":[8,134,175],"electroencephalogram":[9],"(EEG),":[10],"it":[11,105,111],"appears":[12],"frequently":[13],"during":[14],"sleep":[15,42,55,68,75],"recordings.":[16],"Its":[17],"role":[18,46],"and":[19,77,104,127,130,160],"significance":[20],"have":[21,98],"been":[22],"disregarded":[23],"since":[24],"its":[25],"discovery":[26],"until":[27],"recently,":[28],"when":[29],"American":[31],"Association":[32],"of":[33,41,53,61,102,119,166],"Sleep":[34],"Medicine":[35],"(AASM)":[36],"proposed":[37],"new":[39,144],"classification":[40],"with":[43,74],"relevant":[45],"for":[47,146],"K-complexes":[49,71],"definition":[52],"stages.":[56],"It":[57],"now":[59],"one":[60],"key":[63],"features":[64],"that":[65],"contribute":[66],"to":[67,86,109,172],"stage":[69],"assessment.":[70],"are":[72],"associated":[73],"arousal":[76],"can":[78,97,106],"occur":[79],"spontaneously":[80],"or":[81],"as":[82],"an":[83],"evoked":[84],"response":[85],"external":[87],"stimuli.":[88],"Since":[89],"EEG":[91,114],"has":[92],"stochastic":[94],"nature,":[95],"wide":[100],"variety":[101],"shapes":[103],"be":[107],"difficult":[108],"distinguish":[110],"from":[112],"other":[113],"waves.":[115],"The":[116,152,164],"visual":[117,174],"scoring":[118],"very":[123,138],"complex,":[124],"time":[125],"consuming":[126],"expensive":[128],"procedure":[129],"reported":[131],"agreement":[132],"between":[133],"expert":[135],"scorers":[136],"poor.":[139],"In":[140],"this":[141],"paper":[142],"method":[145,154],"automatic":[148],"detection":[149,153,168],"presented.":[151],"based":[156],"on":[157],"Hjorth":[158],"parameters":[159],"employs":[161],"fuzzy":[162],"decision.":[163],"performance":[165],"system":[169],"compared":[171],"scoring.":[176]},"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}