{"id":"https://openalex.org/W2534634374","doi":"https://doi.org/10.3390/s16101713","title":"Hierarchical Activity Recognition Using Smart Watches and RGB-Depth Cameras","display_name":"Hierarchical Activity Recognition Using Smart Watches and RGB-Depth Cameras","publication_year":2016,"publication_date":"2016-10-15","ids":{"openalex":"https://openalex.org/W2534634374","doi":"https://doi.org/10.3390/s16101713","mag":"2534634374","pmid":"https://pubmed.ncbi.nlm.nih.gov/27754458"},"language":"en","primary_location":{"id":"doi:10.3390/s16101713","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s16101713","pdf_url":"https://www.mdpi.com/1424-8220/16/10/1713/pdf?version=1476518902","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/16/10/1713/pdf?version=1476518902","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100332555","display_name":"Zhen Li","orcid":"https://orcid.org/0000-0001-8037-4245"},"institutions":[{"id":"https://openalex.org/I59028903","display_name":"Ocean University of China","ror":"https://ror.org/04rdtx186","country_code":"CN","type":"education","lineage":["https://openalex.org/I59028903"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhen Li","raw_affiliation_strings":["College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China"],"affiliations":[{"raw_affiliation_string":"College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China","institution_ids":["https://openalex.org/I59028903"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079932099","display_name":"Zhiqiang Wei","orcid":"https://orcid.org/0000-0002-2830-8301"},"institutions":[{"id":"https://openalex.org/I59028903","display_name":"Ocean University of China","ror":"https://ror.org/04rdtx186","country_code":"CN","type":"education","lineage":["https://openalex.org/I59028903"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhiqiang Wei","raw_affiliation_strings":["College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China"],"affiliations":[{"raw_affiliation_string":"College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China","institution_ids":["https://openalex.org/I59028903"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100784421","display_name":"Lei Huang","orcid":"https://orcid.org/0000-0001-5306-9114"},"institutions":[{"id":"https://openalex.org/I59028903","display_name":"Ocean University of China","ror":"https://ror.org/04rdtx186","country_code":"CN","type":"education","lineage":["https://openalex.org/I59028903"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lei Huang","raw_affiliation_strings":["College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China"],"affiliations":[{"raw_affiliation_string":"College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China","institution_ids":["https://openalex.org/I59028903"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101822148","display_name":"Shugang Zhang","orcid":"https://orcid.org/0000-0002-9774-9709"},"institutions":[{"id":"https://openalex.org/I59028903","display_name":"Ocean University of China","ror":"https://ror.org/04rdtx186","country_code":"CN","type":"education","lineage":["https://openalex.org/I59028903"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shugang Zhang","raw_affiliation_strings":["College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China"],"affiliations":[{"raw_affiliation_string":"College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China","institution_ids":["https://openalex.org/I59028903"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5058652390","display_name":"Jie Nie","orcid":"https://orcid.org/0000-0003-4952-7666"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jie Nie","raw_affiliation_strings":["Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5058652390"],"corresponding_institution_ids":["https://openalex.org/I99065089"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":0.6757,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.7789472,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"16","issue":"10","first_page":"1713","last_page":"1713"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9995999932289124,"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":0.9995999932289124,"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/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9987000226974487,"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/T10812","display_name":"Human Pose and Action Recognition","score":0.9983000159263611,"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/activity-recognition","display_name":"Activity recognition","score":0.8809107542037964},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7507534027099609},{"id":"https://openalex.org/keywords/rgb-color-model","display_name":"RGB color model","score":0.7470476627349854},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.7391242384910583},{"id":"https://openalex.org/keywords/wearable-computer","display_name":"Wearable computer","score":0.7276865839958191},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6767125129699707},{"id":"https://openalex.org/keywords/smartwatch","display_name":"Smartwatch","score":0.5224857926368713},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.42148321866989136}],"concepts":[{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.8809107542037964},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7507534027099609},{"id":"https://openalex.org/C82990744","wikidata":"https://www.wikidata.org/wiki/Q166194","display_name":"RGB color model","level":2,"score":0.7470476627349854},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7391242384910583},{"id":"https://openalex.org/C150594956","wikidata":"https://www.wikidata.org/wiki/Q1334829","display_name":"Wearable computer","level":2,"score":0.7276865839958191},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6767125129699707},{"id":"https://openalex.org/C29794715","wikidata":"https://www.wikidata.org/wiki/Q5362345","display_name":"Smartwatch","level":3,"score":0.5224857926368713},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.42148321866989136},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/s16101713","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s16101713","pdf_url":"https://www.mdpi.com/1424-8220/16/10/1713/pdf?version=1476518902","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:27754458","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/27754458","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":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:81b96e42957745abb782c15812880150","is_oa":true,"landing_page_url":"https://doaj.org/article/81b96e42957745abb782c15812880150","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 16, Iss 10, p 1713 (2016)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/16/10/1713/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s16101713","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors; Volume 16; Issue 10; Pages: 1713","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:5087501","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/5087501","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s16101713","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s16101713","pdf_url":"https://www.mdpi.com/1424-8220/16/10/1713/pdf?version=1476518902","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2087396116","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2376276132","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"},{"id":"https://openalex.org/G2610219462","display_name":null,"funder_award_id":"140242","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3323535472","display_name":null,"funder_award_id":"201513016","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"},{"id":"https://openalex.org/G4463789455","display_name":null,"funder_award_id":"61602430","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4713543433","display_name":null,"funder_award_id":"61402","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6058138561","display_name":null,"funder_award_id":", No.","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7072596821","display_name":null,"funder_award_id":"61672475","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G781146964","display_name":null,"funder_award_id":"61402428","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2534634374.pdf","grobid_xml":"https://content.openalex.org/works/W2534634374.grobid-xml"},"referenced_works_count":38,"referenced_works":["https://openalex.org/W2002261403","https://openalex.org/W2005915018","https://openalex.org/W2006233203","https://openalex.org/W2012870310","https://openalex.org/W2013780029","https://openalex.org/W2024764203","https://openalex.org/W2024868105","https://openalex.org/W2035855116","https://openalex.org/W2036872036","https://openalex.org/W2037450941","https://openalex.org/W2042116582","https://openalex.org/W2051470989","https://openalex.org/W2064674497","https://openalex.org/W2066239727","https://openalex.org/W2070006916","https://openalex.org/W2072737142","https://openalex.org/W2094523840","https://openalex.org/W2105046342","https://openalex.org/W2109507061","https://openalex.org/W2117494196","https://openalex.org/W2119967926","https://openalex.org/W2126868529","https://openalex.org/W2133728753","https://openalex.org/W2143267104","https://openalex.org/W2144720682","https://openalex.org/W2144836231","https://openalex.org/W2145546283","https://openalex.org/W2146136606","https://openalex.org/W2151966571","https://openalex.org/W2152945331","https://openalex.org/W2153480846","https://openalex.org/W2163072399","https://openalex.org/W2166267120","https://openalex.org/W2168538666","https://openalex.org/W2172156083","https://openalex.org/W2252691034","https://openalex.org/W2541323624","https://openalex.org/W6682436143"],"related_works":["https://openalex.org/W4285587629","https://openalex.org/W2748818549","https://openalex.org/W2756171776","https://openalex.org/W4304142278","https://openalex.org/W2342865424","https://openalex.org/W2587509230","https://openalex.org/W4283331601","https://openalex.org/W2765158217","https://openalex.org/W2892210069","https://openalex.org/W3097068272"],"abstract_inverted_index":{"Human":[0],"activity":[1,17],"recognition":[2,18],"is":[3,38,47,86,99,126],"important":[4],"for":[5,16],"healthcare":[6],"and":[7,30,72,117,129],"lifestyle":[8],"evaluation.":[9],"In":[10],"this":[11,89],"paper,":[12],"a":[13,76],"novel":[14],"method":[15,46,85,125],"by":[19,26,34],"jointly":[20],"considering":[21],"motion":[22,53],"sensor":[23,54],"data":[24,32,55,59,115],"recorded":[25],"wearable":[27],"smart":[28],"watches":[29],"image":[31,58],"captured":[33],"RGB-Depth":[35],"(RGB-D)":[36],"cameras":[37],"presented.":[39],"A":[40],"normalized":[41],"cross":[42],"correlation":[43],"based":[44],"mapping":[45],"implemented":[48],"to":[49,68,96],"establish":[50],"association":[51],"between":[52],"with":[56,80],"corresponding":[57],"from":[60],"the":[61,70,92,101,113],"same":[62],"person":[63],"in":[64],"multi-person":[65],"situations.":[66],"Further,":[67],"improve":[69],"performance":[71],"accuracy":[73],"of":[74,94],"recognition,":[75],"hierarchical":[77],"structure":[78,102],"embedded":[79],"an":[81],"automatic":[82],"group":[83],"selection":[84],"proposed.":[87],"Through":[88],"method,":[90],"if":[91],"number":[93],"activities":[95],"be":[97,104],"classified":[98],"changed,":[100],"will":[103],"changed":[105],"correspondingly":[106],"without":[107],"interaction.":[108],"Our":[109],"comparative":[110],"experiments":[111],"against":[112],"single":[114,118],"source":[116],"layer":[119],"methods":[120],"have":[121],"shown":[122],"that":[123],"our":[124],"more":[127],"accurate":[128],"robust.":[130]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":1}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2025-10-10T00:00:00"}
