{"id":"https://openalex.org/W4308088487","doi":"https://doi.org/10.1109/isc255366.2022.9921985","title":"Recognizing Long-term Sleep Behaviour Change using Clustering for Elderly in Smart Homes","display_name":"Recognizing Long-term Sleep Behaviour Change using Clustering for Elderly in Smart Homes","publication_year":2022,"publication_date":"2022-09-26","ids":{"openalex":"https://openalex.org/W4308088487","doi":"https://doi.org/10.1109/isc255366.2022.9921985"},"language":"en","primary_location":{"id":"doi:10.1109/isc255366.2022.9921985","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isc255366.2022.9921985","pdf_url":null,"source":{"id":"https://openalex.org/S4363608314","display_name":"2022 IEEE International Smart Cities Conference (ISC2)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE International Smart Cities Conference (ISC2)","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/A5009109752","display_name":"Zahraa Khais Shahid","orcid":"https://orcid.org/0000-0002-5704-4667"},"institutions":[{"id":"https://openalex.org/I190632392","display_name":"Lule\u00e5 University of Technology","ror":"https://ror.org/016st3p78","country_code":"SE","type":"education","lineage":["https://openalex.org/I190632392"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Zahraa Khais Shahid","raw_affiliation_strings":["Lule&#x00E5; University of Technology,Department of Computer Science, Electrical and Space Engineering,Skellefte&#x00E5;,Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lule&#x00E5; University of Technology,Department of Computer Science, Electrical and Space Engineering,Skellefte&#x00E5;,Sweden","institution_ids":["https://openalex.org/I190632392"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016272910","display_name":"Saguna Saguna","orcid":"https://orcid.org/0000-0001-8561-7963"},"institutions":[{"id":"https://openalex.org/I190632392","display_name":"Lule\u00e5 University of Technology","ror":"https://ror.org/016st3p78","country_code":"SE","type":"education","lineage":["https://openalex.org/I190632392"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Saguna Saguna","raw_affiliation_strings":["Lule&#x00E5; University of Technology,Department of Computer Science, Electrical and Space Engineering,Skellefte&#x00E5;,Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lule&#x00E5; University of Technology,Department of Computer Science, Electrical and Space Engineering,Skellefte&#x00E5;,Sweden","institution_ids":["https://openalex.org/I190632392"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040470927","display_name":"Christer \u00c5hlund","orcid":"https://orcid.org/0000-0002-8681-9572"},"institutions":[{"id":"https://openalex.org/I190632392","display_name":"Lule\u00e5 University of Technology","ror":"https://ror.org/016st3p78","country_code":"SE","type":"education","lineage":["https://openalex.org/I190632392"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Christer Ahlund","raw_affiliation_strings":["Lule&#x00E5; University of Technology,Department of Computer Science, Electrical and Space Engineering,Skellefte&#x00E5;,Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lule&#x00E5; University of Technology,Department of Computer Science, Electrical and Space Engineering,Skellefte&#x00E5;,Sweden","institution_ids":["https://openalex.org/I190632392"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.5309,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.75211188,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"7"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.991599977016449,"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"}},"topics":[{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.991599977016449,"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"}},{"id":"https://openalex.org/T12222","display_name":"IoT-based Smart Home Systems","score":0.9476000070571899,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T10316","display_name":"Sleep and related disorders","score":0.9140999913215637,"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/bedroom","display_name":"Bedroom","score":0.8752397298812866},{"id":"https://openalex.org/keywords/dementia","display_name":"Dementia","score":0.638027548789978},{"id":"https://openalex.org/keywords/duration","display_name":"Duration (music)","score":0.611409604549408},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.6076536178588867},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.4975915253162384},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.495295912027359},{"id":"https://openalex.org/keywords/sleep","display_name":"Sleep (system call)","score":0.486162394285202},{"id":"https://openalex.org/keywords/population-ageing","display_name":"Population ageing","score":0.48259127140045166},{"id":"https://openalex.org/keywords/gerontology","display_name":"Gerontology","score":0.3999592661857605},{"id":"https://openalex.org/keywords/population","display_name":"Population","score":0.392940878868103},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.39082226157188416},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.31789344549179077},{"id":"https://openalex.org/keywords/disease","display_name":"Disease","score":0.162367582321167},{"id":"https://openalex.org/keywords/environmental-health","display_name":"Environmental health","score":0.16016852855682373},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1426694691181183}],"concepts":[{"id":"https://openalex.org/C2778289769","wikidata":"https://www.wikidata.org/wiki/Q193837","display_name":"Bedroom","level":2,"score":0.8752397298812866},{"id":"https://openalex.org/C2779483572","wikidata":"https://www.wikidata.org/wiki/Q83030","display_name":"Dementia","level":3,"score":0.638027548789978},{"id":"https://openalex.org/C112758219","wikidata":"https://www.wikidata.org/wiki/Q16038819","display_name":"Duration (music)","level":2,"score":0.611409604549408},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.6076536178588867},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.4975915253162384},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.495295912027359},{"id":"https://openalex.org/C2775841894","wikidata":"https://www.wikidata.org/wiki/Q4683692","display_name":"Sleep (system call)","level":2,"score":0.486162394285202},{"id":"https://openalex.org/C13774568","wikidata":"https://www.wikidata.org/wiki/Q439112","display_name":"Population ageing","level":3,"score":0.48259127140045166},{"id":"https://openalex.org/C74909509","wikidata":"https://www.wikidata.org/wiki/Q10387","display_name":"Gerontology","level":1,"score":0.3999592661857605},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.392940878868103},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.39082226157188416},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.31789344549179077},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.162367582321167},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.16016852855682373},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1426694691181183},{"id":"https://openalex.org/C147176958","wikidata":"https://www.wikidata.org/wiki/Q77590","display_name":"Civil engineering","level":1,"score":0.0},{"id":"https://openalex.org/C124952713","wikidata":"https://www.wikidata.org/wiki/Q8242","display_name":"Literature","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"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/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/isc255366.2022.9921985","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isc255366.2022.9921985","pdf_url":null,"source":{"id":"https://openalex.org/S4363608314","display_name":"2022 IEEE International Smart Cities Conference (ISC2)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE International Smart Cities Conference (ISC2)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4298119743","https://openalex.org/W3213217974","https://openalex.org/W3041989168","https://openalex.org/W2528532537","https://openalex.org/W2915250610","https://openalex.org/W608226940","https://openalex.org/W4319016010","https://openalex.org/W3133911088","https://openalex.org/W1863944408","https://openalex.org/W2582570941"],"abstract_inverted_index":{"The":[0],"need":[1],"for":[2,40,94,105,163,196],"smart":[3],"healthcare":[4],"tools":[5],"and":[6,18,20,36,42,65,113,129,169,176,208],"techniques":[7],"has":[8],"increased":[9],"due":[10],"to":[11,72,136,153,183],"the":[12,21,26,46,80,101,124,127,142,148,198],"availability":[13],"of":[14,30,45,49,103,122,126,139,147,201],"low-cost":[15],"IoT":[16],"sensors":[17,85],"devices":[19],"growing":[22],"aging":[23,168],"population":[24],"in":[25,75,79,87,141,160,191],"world.":[27],"Early":[28],"detection":[29],"health":[31,51,172,202],"conditions":[32,173],"such":[33,50,181],"as":[34],"dementia":[35,175],"Parkinsons":[37],"are":[38],"important":[39],"treatment":[41],"medication.":[43],"Out":[44],"many":[47],"symptoms":[48],"conditions,":[52,203],"one":[53],"critical":[54],"behavior":[55,78,186],"is":[56,116,134,151,157],"sleep":[57,77],"activity":[58],"changes.":[59],"In":[60],"this":[61],"paper,":[62],"we":[63],"evaluate":[64],"apply":[66],"an":[67],"unsupervised":[68],"machine":[69],"learning:":[70],"K-Means,":[71],"detect":[73,184],"changes":[74,187],"long-term":[76,185],"bedroom":[81,143],"using":[82,118],"smart-home":[83],"motion":[84],"installed":[86],"6":[88],"real-life":[89],"single":[90],"resident":[91],"elderly":[92,164],"homes":[93],"approximately":[95],"three":[96,109,119],"years.":[97],"Our":[98],"method":[99],"analyses":[100],"transformation":[102],"clusters":[104,162],"a":[106,158],"participant":[107],"over":[108],"years,":[110],"2019,":[111],"2020,":[112],"2021.":[114],"This":[115,150],"done":[117,152],"features:":[120],"duration":[121,130],"stay,":[123],"hour":[125],"day,":[128],"frequency.":[131],"Data":[132],"clustering":[133],"used":[135],"group":[137],"durations":[138],"being":[140],"at":[144],"different":[145],"hours":[146],"day.":[149],"see":[154],"if":[155],"there":[156],"shift":[159],"these":[161],"persons":[165],"with":[166],"healthy":[167],"those":[170],"developing":[171],"like":[174],"Parkinsons.":[177],"We":[178],"foresee":[179],"that":[180],"methods":[182],"can":[188],"support":[189],"caregivers":[190],"carrying":[192],"out":[193],"their":[194],"assessment":[195],"discovering":[197],"early":[199],"onset":[200],"thereby":[204],"preventing":[205],"further":[206],"progression":[207],"providing":[209],"timely":[210],"treatment.":[211]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":3}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
