{"id":"https://openalex.org/W3140874910","doi":"https://doi.org/10.3390/s21072368","title":"A Comparative Study of Feature Selection Approaches for Human Activity Recognition Using Multimodal Sensory Data","display_name":"A Comparative Study of Feature Selection Approaches for Human Activity Recognition Using Multimodal Sensory Data","publication_year":2021,"publication_date":"2021-03-29","ids":{"openalex":"https://openalex.org/W3140874910","doi":"https://doi.org/10.3390/s21072368","mag":"3140874910","pmid":"https://pubmed.ncbi.nlm.nih.gov/33805368"},"language":"en","primary_location":{"id":"doi:10.3390/s21072368","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21072368","pdf_url":"https://www.mdpi.com/1424-8220/21/7/2368/pdf?version=1617937764","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/1424-8220/21/7/2368/pdf?version=1617937764","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5057627509","display_name":"Fatima Amjad","orcid":"https://orcid.org/0000-0002-3242-628X"},"institutions":[{"id":"https://openalex.org/I1323252656","display_name":"Information Technology University","ror":"https://ror.org/00ngv8j44","country_code":"PK","type":"education","lineage":["https://openalex.org/I1323252656"]},{"id":"https://openalex.org/I172780181","display_name":"University of the Punjab","ror":"https://ror.org/011maz450","country_code":"PK","type":"education","lineage":["https://openalex.org/I172780181"]}],"countries":["PK"],"is_corresponding":false,"raw_author_name":"Fatima Amjad","raw_affiliation_strings":["Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan","institution_ids":["https://openalex.org/I172780181","https://openalex.org/I1323252656"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039298911","display_name":"Muhammad Hassan Khan","orcid":"https://orcid.org/0000-0002-6145-5848"},"institutions":[{"id":"https://openalex.org/I1323252656","display_name":"Information Technology University","ror":"https://ror.org/00ngv8j44","country_code":"PK","type":"education","lineage":["https://openalex.org/I1323252656"]},{"id":"https://openalex.org/I172780181","display_name":"University of the Punjab","ror":"https://ror.org/011maz450","country_code":"PK","type":"education","lineage":["https://openalex.org/I172780181"]}],"countries":["PK"],"is_corresponding":true,"raw_author_name":"Muhammad Hassan Khan","raw_affiliation_strings":["Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan"],"raw_orcid":"https://orcid.org/0000-0002-6145-5848","affiliations":[{"raw_affiliation_string":"Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan","institution_ids":["https://openalex.org/I172780181","https://openalex.org/I1323252656"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007434969","display_name":"Muhammad Adeel Nisar","orcid":"https://orcid.org/0000-0003-3288-750X"},"institutions":[{"id":"https://openalex.org/I1323252656","display_name":"Information Technology University","ror":"https://ror.org/00ngv8j44","country_code":"PK","type":"education","lineage":["https://openalex.org/I1323252656"]},{"id":"https://openalex.org/I172780181","display_name":"University of the Punjab","ror":"https://ror.org/011maz450","country_code":"PK","type":"education","lineage":["https://openalex.org/I172780181"]},{"id":"https://openalex.org/I9341345","display_name":"University of L\u00fcbeck","ror":"https://ror.org/00t3r8h32","country_code":"DE","type":"education","lineage":["https://openalex.org/I9341345"]}],"countries":["DE","PK"],"is_corresponding":false,"raw_author_name":"Muhammad Adeel Nisar","raw_affiliation_strings":["Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23538 L\u00fcbeck, Germany","Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan"],"raw_orcid":"https://orcid.org/0000-0003-3288-750X","affiliations":[{"raw_affiliation_string":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23538 L\u00fcbeck, Germany","institution_ids":["https://openalex.org/I9341345"]},{"raw_affiliation_string":"Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan","institution_ids":["https://openalex.org/I172780181","https://openalex.org/I1323252656"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039541296","display_name":"Muhammad Shahid Farid","orcid":"https://orcid.org/0000-0002-8384-2830"},"institutions":[{"id":"https://openalex.org/I1323252656","display_name":"Information Technology University","ror":"https://ror.org/00ngv8j44","country_code":"PK","type":"education","lineage":["https://openalex.org/I1323252656"]},{"id":"https://openalex.org/I172780181","display_name":"University of the Punjab","ror":"https://ror.org/011maz450","country_code":"PK","type":"education","lineage":["https://openalex.org/I172780181"]}],"countries":["PK"],"is_corresponding":false,"raw_author_name":"Muhammad Shahid Farid","raw_affiliation_strings":["Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan"],"raw_orcid":"https://orcid.org/0000-0002-8384-2830","affiliations":[{"raw_affiliation_string":"Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan","institution_ids":["https://openalex.org/I172780181","https://openalex.org/I1323252656"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037990310","display_name":"Marcin Grzegorzek","orcid":"https://orcid.org/0000-0003-4877-8287"},"institutions":[{"id":"https://openalex.org/I9341345","display_name":"University of L\u00fcbeck","ror":"https://ror.org/00t3r8h32","country_code":"DE","type":"education","lineage":["https://openalex.org/I9341345"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Marcin Grzegorzek","raw_affiliation_strings":["Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23538 L\u00fcbeck, Germany"],"raw_orcid":"https://orcid.org/0000-0003-4877-8287","affiliations":[{"raw_affiliation_string":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23538 L\u00fcbeck, Germany","institution_ids":["https://openalex.org/I9341345"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5039298911"],"corresponding_institution_ids":["https://openalex.org/I1323252656","https://openalex.org/I172780181"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":2.5215,"has_fulltext":true,"cited_by_count":37,"citation_normalized_percentile":{"value":0.91031311,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"21","issue":"7","first_page":"2368","last_page":"2368"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9998999834060669,"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":0.9998999834060669,"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":0.9902999997138977,"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/T12740","display_name":"Gait Recognition and Analysis","score":0.98089998960495,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/wearable-computer","display_name":"Wearable computer","score":0.7738735675811768},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6602576971054077},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.6598042845726013},{"id":"https://openalex.org/keywords/smartwatch","display_name":"Smartwatch","score":0.6428849697113037},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5348358154296875},{"id":"https://openalex.org/keywords/wearable-technology","display_name":"Wearable technology","score":0.49100616574287415},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.475341796875},{"id":"https://openalex.org/keywords/modalities","display_name":"Modalities","score":0.4202963411808014},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.41700810194015503},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.4149516522884369},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.36313769221305847}],"concepts":[{"id":"https://openalex.org/C150594956","wikidata":"https://www.wikidata.org/wiki/Q1334829","display_name":"Wearable computer","level":2,"score":0.7738735675811768},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6602576971054077},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.6598042845726013},{"id":"https://openalex.org/C29794715","wikidata":"https://www.wikidata.org/wiki/Q5362345","display_name":"Smartwatch","level":3,"score":0.6428849697113037},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5348358154296875},{"id":"https://openalex.org/C54290928","wikidata":"https://www.wikidata.org/wiki/Q4845080","display_name":"Wearable technology","level":3,"score":0.49100616574287415},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.475341796875},{"id":"https://openalex.org/C2779903281","wikidata":"https://www.wikidata.org/wiki/Q6888026","display_name":"Modalities","level":2,"score":0.4202963411808014},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.41700810194015503},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.4149516522884369},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.36313769221305847},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.0},{"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/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social science","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000068997","descriptor_name":"Smartphone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000068997","descriptor_name":"Smartphone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000068997","descriptor_name":"Smartphone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000080310","descriptor_name":"Smart Glasses","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000080310","descriptor_name":"Smart Glasses","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000080310","descriptor_name":"Smart Glasses","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"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":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006802","descriptor_name":"Human Activities","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006802","descriptor_name":"Human Activities","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006802","descriptor_name":"Human Activities","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D021641","descriptor_name":"Recognition, Psychology","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D021641","descriptor_name":"Recognition, Psychology","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D021641","descriptor_name":"Recognition, Psychology","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":5,"locations":[{"id":"doi:10.3390/s21072368","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21072368","pdf_url":"https://www.mdpi.com/1424-8220/21/7/2368/pdf?version=1617937764","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:33805368","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33805368","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:2a090f4284a54dd0909bb21c0ca18a18","is_oa":true,"landing_page_url":"https://doaj.org/article/2a090f4284a54dd0909bb21c0ca18a18","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","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":"repository"},"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 21, Iss 7, p 2368 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/21/7/2368/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s21072368","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 21; Issue 7; Pages: 2368","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:8036571","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/8036571","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"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/s21072368","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21072368","pdf_url":"https://www.mdpi.com/1424-8220/21/7/2368/pdf?version=1617937764","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":[{"display_name":"Industry, innovation and infrastructure","score":0.6700000166893005,"id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3140874910.pdf","grobid_xml":"https://content.openalex.org/works/W3140874910.grobid-xml"},"referenced_works_count":84,"referenced_works":["https://openalex.org/W1488354298","https://openalex.org/W1501671177","https://openalex.org/W1590519086","https://openalex.org/W1606626619","https://openalex.org/W1871385855","https://openalex.org/W1983705368","https://openalex.org/W2010043809","https://openalex.org/W2010838375","https://openalex.org/W2012557818","https://openalex.org/W2023302299","https://openalex.org/W2034899024","https://openalex.org/W2050836750","https://openalex.org/W2054780155","https://openalex.org/W2056168656","https://openalex.org/W2068611653","https://openalex.org/W2071128523","https://openalex.org/W2091066410","https://openalex.org/W2098502158","https://openalex.org/W2100805904","https://openalex.org/W2100906313","https://openalex.org/W2102319615","https://openalex.org/W2104068492","https://openalex.org/W2106076350","https://openalex.org/W2112738451","https://openalex.org/W2118585731","https://openalex.org/W2124703187","https://openalex.org/W2125838338","https://openalex.org/W2140494000","https://openalex.org/W2141188346","https://openalex.org/W2144986633","https://openalex.org/W2145343602","https://openalex.org/W2150757437","https://openalex.org/W2151180344","https://openalex.org/W2156798932","https://openalex.org/W2158054592","https://openalex.org/W2158275940","https://openalex.org/W2168189108","https://openalex.org/W2180635266","https://openalex.org/W2187399422","https://openalex.org/W2195342085","https://openalex.org/W2313953460","https://openalex.org/W2341105960","https://openalex.org/W2417999172","https://openalex.org/W2463280635","https://openalex.org/W2515197809","https://openalex.org/W2519804223","https://openalex.org/W2559988152","https://openalex.org/W2587369645","https://openalex.org/W2605078373","https://openalex.org/W2621021458","https://openalex.org/W2734519025","https://openalex.org/W2773688097","https://openalex.org/W2776671647","https://openalex.org/W2789868604","https://openalex.org/W2790849663","https://openalex.org/W2791315675","https://openalex.org/W2798314446","https://openalex.org/W2811491681","https://openalex.org/W2889705906","https://openalex.org/W2894383060","https://openalex.org/W2895495973","https://openalex.org/W2946223320","https://openalex.org/W2962956633","https://openalex.org/W2967946308","https://openalex.org/W2972511150","https://openalex.org/W2973229576","https://openalex.org/W2998216295","https://openalex.org/W3001562933","https://openalex.org/W3004785246","https://openalex.org/W3015331232","https://openalex.org/W3016422726","https://openalex.org/W3024333932","https://openalex.org/W3036522250","https://openalex.org/W3100260313","https://openalex.org/W3123077146","https://openalex.org/W3183154538","https://openalex.org/W4212883601","https://openalex.org/W4231587572","https://openalex.org/W4285719527","https://openalex.org/W6629180925","https://openalex.org/W6677656871","https://openalex.org/W6686516778","https://openalex.org/W6749302402","https://openalex.org/W7066667914"],"related_works":["https://openalex.org/W4285587629","https://openalex.org/W4304142278","https://openalex.org/W2748818549","https://openalex.org/W2342865424","https://openalex.org/W2587509230","https://openalex.org/W4283331601","https://openalex.org/W2765158217","https://openalex.org/W3097068272","https://openalex.org/W2756171776","https://openalex.org/W2582769230"],"abstract_inverted_index":{"Human":[0],"activity":[1,114],"recognition":[2,106,168,273,289],"(HAR)":[3],"aims":[4],"to":[5,40,62,99,142,195,260],"recognize":[6,63,143,196,261],"the":[7,10,28,31,35,54,64,74,102,108,112,127,131,153,156,162,173,179,197,206,210,220,228,253,262,276,280,292,299],"actions":[8,67,91],"of":[9,16,23,30,46,53,77,90,111,130,149,181,189,230,256,291],"human":[11,24,65,75,144],"body":[12,66],"through":[13],"a":[14,121,138,147],"series":[15],"observations":[17],"and":[18,48,86,166,200,205,233,247,270,279,295],"environmental":[19],"conditions.":[20],"The":[21,214,236,265,288],"analysis":[22],"activities":[25,76,145,158,175],"has":[26],"drawn":[27],"attention":[29],"research":[32],"community":[33],"in":[34,58,126],"last":[36],"two":[37,186],"decades":[38],"due":[39],"its":[41,304],"widespread":[42],"applications,":[43],"diverse":[44],"nature":[45],"activities,":[47,199],"recording":[49],"infrastructure.":[50],"Lately,":[51],"one":[52],"most":[55],"challenging":[56],"applications":[57],"this":[59,135],"framework":[60],"is":[61,96,217,238],"using":[68,146,178,209,240,275,283],"unobtrusive":[69,242],"wearable":[70,150,243],"motion":[71],"sensors.":[72,151],"Since":[73],"daily":[78],"life":[79],"(e.g.,":[80,92],"cooking,":[81],"eating)":[82],"comprises":[83],"several":[84],"repetitive":[85],"circumstantial":[87],"short":[88],"sequences":[89,110],"moving":[93],"arm),":[94],"it":[95],"quite":[97],"difficult":[98],"directly":[100],"use":[101],"sensory":[103,164],"data":[104,115,237],"for":[105],"because":[107],"multiple":[109],"same":[113],"may":[116],"have":[117],"large":[118,221],"diversity.":[119],"However,":[120],"similarity":[122],"can":[123],"be":[124],"observed":[125],"temporal":[128],"occurrence":[129],"atomic":[132,157,182,193,232],"actions.":[133,183],"Therefore,":[134],"paper":[136],"presents":[137],"two-level":[139],"hierarchical":[140],"method":[141,216,267],"set":[148],"In":[152],"first":[154],"step,":[155],"are":[159,170,176],"detected":[160],"from":[161,192],"original":[163],"data,":[165],"their":[167,296],"scores":[169,180,194],"obtained.":[171],"Secondly,":[172],"composite":[174,198,234,263],"recognized":[177],"We":[184,250],"propose":[185],"different":[187,257],"methods":[188],"feature":[190],"extraction":[191],"they":[201],"include":[202],"handcrafted":[203,277],"features":[204,207,278,281],"obtained":[208,282],"subspace":[211,284],"pooling":[212,285],"technique.":[213],"proposed":[215,266,293],"evaluated":[218],"on":[219],"publicly":[222],"available":[223],"CogAge":[224],"dataset,":[225],"which":[226],"contains":[227],"instances":[229],"both":[231],"activities.":[235,264],"recorded":[239],"three":[241],"devices:":[244],"smartphone,":[245],"smartwatch,":[246],"smart":[248],"glasses.":[249],"also":[251],"investigated":[252],"performance":[254],"evaluation":[255],"classification":[258],"algorithms":[259],"achieved":[268],"79%":[269],"62.8%":[271],"average":[272],"accuracies":[274],"technique,":[286],"respectively.":[287],"results":[290],"technique":[294],"comparison":[297],"with":[298],"existing":[300],"state-of-the-art":[301],"techniques":[302],"confirm":[303],"effectiveness.":[305]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":9},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":5}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
