{"id":"https://openalex.org/W2911844256","doi":"https://doi.org/10.3390/s19030458","title":"Human Physical Activity Recognition Using Smartphone Sensors","display_name":"Human Physical Activity Recognition Using Smartphone Sensors","publication_year":2019,"publication_date":"2019-01-23","ids":{"openalex":"https://openalex.org/W2911844256","doi":"https://doi.org/10.3390/s19030458","mag":"2911844256","pmid":"https://pubmed.ncbi.nlm.nih.gov/30678039"},"language":"en","primary_location":{"id":"doi:10.3390/s19030458","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19030458","pdf_url":"https://www.mdpi.com/1424-8220/19/3/458/pdf?version=1548744196","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/1424-8220/19/3/458/pdf?version=1548744196","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5047042302","display_name":"Robert-Andrei Voicu","orcid":null},"institutions":[{"id":"https://openalex.org/I61641377","display_name":"Universitatea Na\u021bional\u0103 de \u0218tiin\u021b\u0103 \u0219i Tehnologie Politehnica Bucure\u0219ti","ror":"https://ror.org/0558j5q12","country_code":"RO","type":"education","lineage":["https://openalex.org/I61641377"]}],"countries":["RO"],"is_corresponding":false,"raw_author_name":"Robert-Andrei Voicu","raw_affiliation_strings":["Faculty of Automatic Control and Computers, University Politehnica of Bucharest, 060042 Bucharest, Romania"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Automatic Control and Computers, University Politehnica of Bucharest, 060042 Bucharest, Romania","institution_ids":["https://openalex.org/I61641377"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024776367","display_name":"Ciprian Dobre","orcid":"https://orcid.org/0000-0003-4638-7725"},"institutions":[{"id":"https://openalex.org/I4210114681","display_name":"National Institute for Research and Development in Informatics - ICI Bucharest","ror":"https://ror.org/028rq5v79","country_code":"RO","type":"facility","lineage":["https://openalex.org/I4210114681"]}],"countries":["RO"],"is_corresponding":false,"raw_author_name":"Ciprian Dobre","raw_affiliation_strings":["National Institute for Research and Development in Informatics, 011455 Bucharest, Romania"],"raw_orcid":"https://orcid.org/0000-0003-4638-7725","affiliations":[{"raw_affiliation_string":"National Institute for Research and Development in Informatics, 011455 Bucharest, Romania","institution_ids":["https://openalex.org/I4210114681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085603040","display_name":"Lidia B\u0103jenaru","orcid":"https://orcid.org/0000-0002-1800-3897"},"institutions":[{"id":"https://openalex.org/I4210114681","display_name":"National Institute for Research and Development in Informatics - ICI Bucharest","ror":"https://ror.org/028rq5v79","country_code":"RO","type":"facility","lineage":["https://openalex.org/I4210114681"]}],"countries":["RO"],"is_corresponding":false,"raw_author_name":"Lidia Bajenaru","raw_affiliation_strings":["National Institute for Research and Development in Informatics, 011455 Bucharest, Romania"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Institute for Research and Development in Informatics, 011455 Bucharest, Romania","institution_ids":["https://openalex.org/I4210114681"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081782236","display_name":"Radu\u2010Ioan Ciobanu","orcid":"https://orcid.org/0000-0002-4114-1139"},"institutions":[{"id":"https://openalex.org/I61641377","display_name":"Universitatea Na\u021bional\u0103 de \u0218tiin\u021b\u0103 \u0219i Tehnologie Politehnica Bucure\u0219ti","ror":"https://ror.org/0558j5q12","country_code":"RO","type":"education","lineage":["https://openalex.org/I61641377"]}],"countries":["RO"],"is_corresponding":true,"raw_author_name":"Radu-Ioan Ciobanu","raw_affiliation_strings":["Faculty of Automatic Control and Computers, University Politehnica of Bucharest, 060042 Bucharest, Romania"],"raw_orcid":"https://orcid.org/0000-0002-4114-1139","affiliations":[{"raw_affiliation_string":"Faculty of Automatic Control and Computers, University Politehnica of Bucharest, 060042 Bucharest, Romania","institution_ids":["https://openalex.org/I61641377"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5081782236"],"corresponding_institution_ids":["https://openalex.org/I61641377"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2673},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2673},"fwci":12.5692,"has_fulltext":true,"cited_by_count":170,"citation_normalized_percentile":{"value":0.99185585,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"19","issue":"3","first_page":"458","last_page":"458"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9998000264167786,"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":0.9998000264167786,"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/T10273","display_name":"IoT and Edge/Fog Computing","score":0.9879000186920166,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T12697","display_name":"Water Quality Monitoring Technologies","score":0.9456999897956848,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/accelerometer","display_name":"Accelerometer","score":0.8756846785545349},{"id":"https://openalex.org/keywords/stairs","display_name":"Stairs","score":0.8360048532485962},{"id":"https://openalex.org/keywords/gyroscope","display_name":"Gyroscope","score":0.809738039970398},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.7298805713653564},{"id":"https://openalex.org/keywords/sitting","display_name":"Sitting","score":0.6958971619606018},{"id":"https://openalex.org/keywords/assisted-living","display_name":"Assisted living","score":0.5920906662940979},{"id":"https://openalex.org/keywords/android","display_name":"Android (operating system)","score":0.5582594871520996},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.551330029964447},{"id":"https://openalex.org/keywords/android-application","display_name":"Android application","score":0.48906001448631287},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.44244030117988586},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.36678576469421387},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3621629476547241},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.33075782656669617},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.25671717524528503}],"concepts":[{"id":"https://openalex.org/C89805583","wikidata":"https://www.wikidata.org/wiki/Q192940","display_name":"Accelerometer","level":2,"score":0.8756846785545349},{"id":"https://openalex.org/C2777295749","wikidata":"https://www.wikidata.org/wiki/Q12511","display_name":"Stairs","level":2,"score":0.8360048532485962},{"id":"https://openalex.org/C158488048","wikidata":"https://www.wikidata.org/wiki/Q483400","display_name":"Gyroscope","level":2,"score":0.809738039970398},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.7298805713653564},{"id":"https://openalex.org/C2776370487","wikidata":"https://www.wikidata.org/wiki/Q1144593","display_name":"Sitting","level":2,"score":0.6958971619606018},{"id":"https://openalex.org/C3018552312","wikidata":"https://www.wikidata.org/wiki/Q315412","display_name":"Assisted living","level":2,"score":0.5920906662940979},{"id":"https://openalex.org/C557433098","wikidata":"https://www.wikidata.org/wiki/Q94","display_name":"Android (operating system)","level":2,"score":0.5582594871520996},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.551330029964447},{"id":"https://openalex.org/C3017891749","wikidata":"https://www.wikidata.org/wiki/Q94","display_name":"Android application","level":3,"score":0.48906001448631287},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.44244030117988586},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.36678576469421387},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3621629476547241},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.33075782656669617},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.25671717524528503},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","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},{"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/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"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/C159110408","wikidata":"https://www.wikidata.org/wiki/Q121176","display_name":"Nursing","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000068997","descriptor_name":"Smartphone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000068997","descriptor_name":"Smartphone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000068997","descriptor_name":"Smartphone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","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":false},{"descriptor_ui":"D006802","descriptor_name":"Human Activities","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":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012420","descriptor_name":"Running","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D012420","descriptor_name":"Running","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D012420","descriptor_name":"Running","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D015374","descriptor_name":"Biosensing Techniques","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D015374","descriptor_name":"Biosensing Techniques","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D015374","descriptor_name":"Biosensing Techniques","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D016138","descriptor_name":"Walking","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D016138","descriptor_name":"Walking","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D016138","descriptor_name":"Walking","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D018670","descriptor_name":"Monitoring, Ambulatory","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D018670","descriptor_name":"Monitoring, Ambulatory","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D018670","descriptor_name":"Monitoring, Ambulatory","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D040421","descriptor_name":"Cell Phone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D040421","descriptor_name":"Cell Phone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D040421","descriptor_name":"Cell Phone","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false}],"locations_count":6,"locations":[{"id":"doi:10.3390/s19030458","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19030458","pdf_url":"https://www.mdpi.com/1424-8220/19/3/458/pdf?version=1548744196","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:30678039","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/30678039","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:ca0615166c29420ca34ec2f87a69ce9a","is_oa":true,"landing_page_url":"https://doaj.org/article/ca0615166c29420ca34ec2f87a69ce9a","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 19, Iss 3, p 458 (2019)","raw_type":"article"},{"id":"pmh:oai:europepmc.org:5384951","is_oa":true,"landing_page_url":"http://europepmc.org/pmc/articles/PMC6386882","pdf_url":null,"source":{"id":"https://openalex.org/S4306400806","display_name":"Europe PMC (PubMed Central)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1303153112","host_organization_name":"European Bioinformatics Institute","host_organization_lineage":["https://openalex.org/I1303153112"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},{"id":"pmh:oai:mdpi.com:/1424-8220/19/3/458/","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3390/s19030458","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","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:6386882","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/6386882","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/s19030458","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19030458","pdf_url":"https://www.mdpi.com/1424-8220/19/3/458/pdf?version=1548744196","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/G6424030121","display_name":null,"funder_award_id":"AAL2017-63-vINCI","funder_id":"https://openalex.org/F4320338386","funder_display_name":"Active and Assisted Living programme"},{"id":"https://openalex.org/G7975874342","display_name":null,"funder_award_id":"PN-III-P1-1.2-PCCDI-2017-0821 / NR. 54PCCDI / 2018)","funder_id":"https://openalex.org/F4320323983","funder_display_name":"Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii"}],"funders":[{"id":"https://openalex.org/F4320323983","display_name":"Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii","ror":"https://ror.org/01q7jq182"},{"id":"https://openalex.org/F4320338386","display_name":"Active and Assisted Living programme","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2911844256.pdf","grobid_xml":"https://content.openalex.org/works/W2911844256.grobid-xml"},"referenced_works_count":39,"referenced_works":["https://openalex.org/W98188630","https://openalex.org/W175530405","https://openalex.org/W232760331","https://openalex.org/W331816074","https://openalex.org/W1523691474","https://openalex.org/W1677182931","https://openalex.org/W1857382374","https://openalex.org/W1911418635","https://openalex.org/W1915297548","https://openalex.org/W1970400103","https://openalex.org/W1997229236","https://openalex.org/W2017351764","https://openalex.org/W2017634428","https://openalex.org/W2059732136","https://openalex.org/W2075694938","https://openalex.org/W2101622311","https://openalex.org/W2112628161","https://openalex.org/W2127095067","https://openalex.org/W2128332586","https://openalex.org/W2129793335","https://openalex.org/W2141018395","https://openalex.org/W2141278204","https://openalex.org/W2151047074","https://openalex.org/W2152975774","https://openalex.org/W2196551647","https://openalex.org/W2304267454","https://openalex.org/W2474529778","https://openalex.org/W2476501661","https://openalex.org/W2495825201","https://openalex.org/W2510575683","https://openalex.org/W2620791704","https://openalex.org/W2626189418","https://openalex.org/W2769728460","https://openalex.org/W2962351724","https://openalex.org/W4230046937","https://openalex.org/W6604091132","https://openalex.org/W6607117620","https://openalex.org/W6640093653","https://openalex.org/W6929579976"],"related_works":["https://openalex.org/W2945490067","https://openalex.org/W1579566807","https://openalex.org/W1464901939","https://openalex.org/W3184212333","https://openalex.org/W2889810448","https://openalex.org/W2279827266","https://openalex.org/W4312401170","https://openalex.org/W1556801288","https://openalex.org/W2949780106","https://openalex.org/W2510775068"],"abstract_inverted_index":{"Because":[0],"the":[1,12,36,98,124],"number":[2],"of":[3,25,38],"elderly":[4],"people":[5],"is":[6,30,164],"predicted":[7],"to":[8,20,83,100],"increase":[9],"quickly":[10],"in":[11,16,35,43],"upcoming":[13],"years,":[14],"\"aging":[15],"place\"":[17],"(which":[18],"refers":[19],"living":[21],"at":[22],"home":[23],"regardless":[24],"age":[26],"and":[27,77,94,119,135,160],"other":[28],"factors)":[29],"becoming":[31],"an":[32,136,172],"important":[33],"topic":[34],"area":[37],"ambient":[39],"assisted":[40],"living.":[41],"Therefore,":[42],"this":[44],"paper,":[45],"we":[46,112],"propose":[47],"a":[48,66,73,168],"human":[49],"physical":[50],"activity":[51],"recognition":[52],"system":[53,163],"based":[54],"on":[55,72,87,167],"data":[56],"collected":[57,132],"from":[58],"smartphone":[59],"sensors.":[60],"The":[61,162],"proposed":[62],"approach":[63],"implies":[64],"developing":[65],"classifier":[67],"using":[68],"three":[69],"sensors":[70,103],"available":[71],"smartphone:":[74],"accelerometer,":[75],"gyroscope,":[76],"gravity":[78],"sensor.":[79],"We":[80,122],"have":[81],"chosen":[82],"implement":[84],"our":[85,110],"solution":[86,125],"mobile":[88,169],"phones":[89],"because":[90],"they":[91],"are":[92],"ubiquitous":[93],"do":[95],"not":[96],"require":[97],"subjects":[99],"carry":[101],"additional":[102],"that":[104],"might":[105],"impede":[106],"their":[107],"activities.":[108],"For":[109],"proposal,":[111],"target":[113],"walking,":[114,157],"running,":[115,158],"sitting,":[116,159],"standing,":[117],"ascending,":[118],"descending":[120],"stairs.":[121],"evaluate":[123],"against":[126],"two":[127],"datasets":[128],"(an":[129],"internal":[130],"one":[131],"by":[133],"us":[134],"external":[137],"one)":[138],"with":[139,151],"great":[140],"effect.":[141],"Results":[142],"show":[143],"good":[144,153],"accuracy":[145],"for":[146,156],"recognizing":[147],"all":[148],"six":[149],"activities,":[150],"especially":[152],"results":[154],"obtained":[155],"standing.":[161],"fully":[165],"implemented":[166],"device":[170],"as":[171],"Android":[173],"application.":[174]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":24},{"year":2023,"cited_by_count":26},{"year":2022,"cited_by_count":38},{"year":2021,"cited_by_count":34},{"year":2020,"cited_by_count":28},{"year":2019,"cited_by_count":11}],"updated_date":"2026-07-30T17:31:21.811387","created_date":"2025-10-10T00:00:00"}