{"id":"https://openalex.org/W2095086683","doi":"https://doi.org/10.1145/2750858.2804272","title":"Non-obstructive room-level locating system in home environments using activity fingerprints from smartwatch","display_name":"Non-obstructive room-level locating system in home environments using activity fingerprints from smartwatch","publication_year":2015,"publication_date":"2015-09-07","ids":{"openalex":"https://openalex.org/W2095086683","doi":"https://doi.org/10.1145/2750858.2804272","mag":"2095086683"},"language":"en","primary_location":{"id":"doi:10.1145/2750858.2804272","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2750858.2804272","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous 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/A5100403761","display_name":"Seungwoo Lee","orcid":"https://orcid.org/0000-0002-6659-3457"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]},{"id":"https://openalex.org/I4210131650","display_name":"Korea Electronics Technology Institute","ror":"https://ror.org/039k6f508","country_code":"KR","type":"facility","lineage":["https://openalex.org/I2801339556","https://openalex.org/I4210089395","https://openalex.org/I4210131650"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Seungwoo Lee","raw_affiliation_strings":["Yonsei University, Seoul, Korea and Korea Electronics Technology Institute, Seongnam-si, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yonsei University, Seoul, Korea and Korea Electronics Technology Institute, Seongnam-si, Korea","institution_ids":["https://openalex.org/I4210131650","https://openalex.org/I193775966"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056854159","display_name":"Yungeun Kim","orcid":null},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Yungeun Kim","raw_affiliation_strings":["Yonsei University, Seoul, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yonsei University, Seoul, Korea","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027554997","display_name":"Daye Ahn","orcid":null},"institutions":[{"id":"https://openalex.org/I94588446","display_name":"Hongik University","ror":"https://ror.org/00egdv862","country_code":"KR","type":"education","lineage":["https://openalex.org/I94588446"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Daye Ahn","raw_affiliation_strings":["Hongik University, Seoul, Korea","Hongik University , Seoul , Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hongik University, Seoul, Korea","institution_ids":["https://openalex.org/I94588446"]},{"raw_affiliation_string":"Hongik University , Seoul , Korea","institution_ids":["https://openalex.org/I94588446"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009685669","display_name":"Rhan Ha","orcid":null},"institutions":[{"id":"https://openalex.org/I94588446","display_name":"Hongik University","ror":"https://ror.org/00egdv862","country_code":"KR","type":"education","lineage":["https://openalex.org/I94588446"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Rhan Ha","raw_affiliation_strings":["Hongik University, Seoul, Korea","Hongik University , Seoul , Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hongik University, Seoul, Korea","institution_ids":["https://openalex.org/I94588446"]},{"raw_affiliation_string":"Hongik University , Seoul , Korea","institution_ids":["https://openalex.org/I94588446"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031543156","display_name":"Kyoungwoo Lee","orcid":"https://orcid.org/0000-0001-5082-3775"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Kyoungwoo Lee","raw_affiliation_strings":["Yonsei University, Seoul, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yonsei University, Seoul, Korea","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5000631554","display_name":"Hojung Cha","orcid":"https://orcid.org/0000-0002-9060-5091"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hojung Cha","raw_affiliation_strings":["Yonsei University, Seoul, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yonsei University, Seoul, Korea","institution_ids":["https://openalex.org/I193775966"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.0084,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.87926976,"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":"939","last_page":"950"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9998000264167786,"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"}},"topics":[{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9998000264167786,"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/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9991999864578247,"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":0.989300012588501,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/smartwatch","display_name":"Smartwatch","score":0.8566586971282959},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7272576093673706},{"id":"https://openalex.org/keywords/home-automation","display_name":"Home automation","score":0.6733407974243164},{"id":"https://openalex.org/keywords/wearable-computer","display_name":"Wearable computer","score":0.537455141544342},{"id":"https://openalex.org/keywords/indoor-positioning-system","display_name":"Indoor positioning system","score":0.5312808752059937},{"id":"https://openalex.org/keywords/hidden-markov-model","display_name":"Hidden Markov model","score":0.5034250617027283},{"id":"https://openalex.org/keywords/tracking-system","display_name":"Tracking system","score":0.45731306076049805},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.45125874876976013},{"id":"https://openalex.org/keywords/inertial-measurement-unit","display_name":"Inertial measurement unit","score":0.440607488155365},{"id":"https://openalex.org/keywords/location-tracking","display_name":"Location tracking","score":0.43364909291267395},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.4224920868873596},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.42091432213783264},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.4119480848312378},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.37056565284729004},{"id":"https://openalex.org/keywords/accelerometer","display_name":"Accelerometer","score":0.32926639914512634},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.18474379181861877},{"id":"https://openalex.org/keywords/kalman-filter","display_name":"Kalman filter","score":0.13456273078918457},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11366194486618042},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.08757972717285156}],"concepts":[{"id":"https://openalex.org/C29794715","wikidata":"https://www.wikidata.org/wiki/Q5362345","display_name":"Smartwatch","level":3,"score":0.8566586971282959},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7272576093673706},{"id":"https://openalex.org/C507571656","wikidata":"https://www.wikidata.org/wiki/Q848436","display_name":"Home automation","level":2,"score":0.6733407974243164},{"id":"https://openalex.org/C150594956","wikidata":"https://www.wikidata.org/wiki/Q1334829","display_name":"Wearable computer","level":2,"score":0.537455141544342},{"id":"https://openalex.org/C2777486483","wikidata":"https://www.wikidata.org/wiki/Q6026477","display_name":"Indoor positioning system","level":3,"score":0.5312808752059937},{"id":"https://openalex.org/C23224414","wikidata":"https://www.wikidata.org/wiki/Q176769","display_name":"Hidden Markov model","level":2,"score":0.5034250617027283},{"id":"https://openalex.org/C154586513","wikidata":"https://www.wikidata.org/wiki/Q4420972","display_name":"Tracking system","level":3,"score":0.45731306076049805},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.45125874876976013},{"id":"https://openalex.org/C79061980","wikidata":"https://www.wikidata.org/wiki/Q941680","display_name":"Inertial measurement unit","level":2,"score":0.440607488155365},{"id":"https://openalex.org/C3019020692","wikidata":"https://www.wikidata.org/wiki/Q17141406","display_name":"Location tracking","level":2,"score":0.43364909291267395},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.4224920868873596},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.42091432213783264},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.4119480848312378},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.37056565284729004},{"id":"https://openalex.org/C89805583","wikidata":"https://www.wikidata.org/wiki/Q192940","display_name":"Accelerometer","level":2,"score":0.32926639914512634},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.18474379181861877},{"id":"https://openalex.org/C157286648","wikidata":"https://www.wikidata.org/wiki/Q846780","display_name":"Kalman filter","level":2,"score":0.13456273078918457},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11366194486618042},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.08757972717285156},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2750858.2804272","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2750858.2804272","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.6499999761581421}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W98188630","https://openalex.org/W1512527155","https://openalex.org/W1607990371","https://openalex.org/W1897824230","https://openalex.org/W1964120742","https://openalex.org/W1978994414","https://openalex.org/W1991133427","https://openalex.org/W1992365961","https://openalex.org/W1995588456","https://openalex.org/W2022909070","https://openalex.org/W2024255528","https://openalex.org/W2026265322","https://openalex.org/W2032924581","https://openalex.org/W2052384514","https://openalex.org/W2056427752","https://openalex.org/W2068021035","https://openalex.org/W2074429525","https://openalex.org/W2074614040","https://openalex.org/W2078493525","https://openalex.org/W2085549941","https://openalex.org/W2088358148","https://openalex.org/W2105046342","https://openalex.org/W2118975298","https://openalex.org/W2121868539","https://openalex.org/W2127218421","https://openalex.org/W2141401407","https://openalex.org/W2142216726","https://openalex.org/W2144685889","https://openalex.org/W2147124620","https://openalex.org/W2153654241","https://openalex.org/W2163239971","https://openalex.org/W2165835873","https://openalex.org/W2166315077","https://openalex.org/W2170102584","https://openalex.org/W4206300474","https://openalex.org/W4247624306","https://openalex.org/W4285719527","https://openalex.org/W6604091132"],"related_works":["https://openalex.org/W2748818549","https://openalex.org/W4304142278","https://openalex.org/W2342865424","https://openalex.org/W2587509230","https://openalex.org/W4283331601","https://openalex.org/W3097068272","https://openalex.org/W4210780304","https://openalex.org/W3093846146","https://openalex.org/W2802035586","https://openalex.org/W4313463160"],"abstract_inverted_index":{"Many":[0],"smart":[1],"home":[2,11,29,56,65,117],"applications,":[3],"such":[4],"as":[5],"monitoring":[6],"for":[7,16,24,55,144],"the":[8,32,45,50,89,92,96,105,114,120,130],"elderly":[9],"and":[10,49,73,91,98,119],"automation,":[12],"require":[13],"location":[14,57,99,131],"information":[15,100],"individual":[17],"occupants.":[18],"Several":[19],"techniques":[20,34],"have":[21],"been":[22],"proposed":[23],"tracking":[25,67],"occupants":[26],"in":[27],"a":[28,38,64,71,109],"environment.":[30],"However,":[31],"current":[33],"do":[35],"not":[36],"provide":[37],"seamless":[39],"in-home":[40],"locating":[41],"system":[42,68,128],"owing":[43],"to":[44],"occupants'":[46],"device-free":[47],"movement":[48],"lack":[51],"of":[52,95,132],"cost-effective":[53],"infrastructure":[54],"tracking.":[58],"In":[59,80],"this":[60],"paper,":[61],"we":[62],"propose":[63],"occupant":[66],"that":[69,126],"uses":[70],"smartphone":[72],"an":[74],"off-the-shelf":[75],"smartwatch":[76],"without":[77],"additional":[78],"infrastructure.":[79],"our":[81,127],"system,":[82],"activity":[83],"fingerprints":[84],"are":[85],"automatically":[86],"generated":[87],"from":[88,104],"microphone":[90],"inertial":[93],"sensors":[94],"smartwatch,":[97],"is":[101,140],"periodically":[102],"obtained":[103],"smartphone.":[106],"We":[107],"designed":[108],"hidden":[110],"Markov":[111],"model":[112],"using":[113],"relationship":[115],"between":[116],"activities":[118],"room's":[121],"location.":[122],"Extensive":[123],"experiments":[124],"showed":[125],"tracks":[129],"users":[133],"with":[134],"87%":[135],"accuracy,":[136],"even":[137],"when":[138],"there":[139],"no":[141],"manual":[142],"training":[143],"activities.":[145]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":3}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}