{"id":"https://openalex.org/W1988936217","doi":"https://doi.org/10.3390/s140406370","title":"Video-Based Human Activity Recognition Using Multilevel Wavelet Decomposition and Stepwise Linear Discriminant Analysis","display_name":"Video-Based Human Activity Recognition Using Multilevel Wavelet Decomposition and Stepwise Linear Discriminant Analysis","publication_year":2014,"publication_date":"2014-04-04","ids":{"openalex":"https://openalex.org/W1988936217","doi":"https://doi.org/10.3390/s140406370","mag":"1988936217","pmid":"https://pubmed.ncbi.nlm.nih.gov/24714390"},"language":"en","primary_location":{"id":"doi:10.3390/s140406370","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s140406370","pdf_url":"https://www.mdpi.com/1424-8220/14/4/6370/pdf?version=1403352199","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/1424-8220/14/4/6370/pdf?version=1403352199","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112075425","display_name":"Muhammad Siddiqi","orcid":null},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Muhammad Siddiqi","raw_affiliation_strings":["Department of Computer Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","Department of Computer Engineering, Kyung Hee University, Suwon 446-701, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","institution_ids":["https://openalex.org/I35928602"]},{"raw_affiliation_string":"Department of Computer Engineering, Kyung Hee University, Suwon 446-701, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063257512","display_name":"Rahman Ali","orcid":"https://orcid.org/0000-0002-9171-8573"},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Rahman Ali","raw_affiliation_strings":["Department of Computer Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","Department of Computer Engineering, Kyung Hee University, Suwon 446-701, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","institution_ids":["https://openalex.org/I35928602"]},{"raw_affiliation_string":"Department of Computer Engineering, Kyung Hee University, Suwon 446-701, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073964696","display_name":"Md. Sohel Rana","orcid":"https://orcid.org/0000-0001-5999-9435"},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Md. Rana","raw_affiliation_strings":["Department of Electronics and Radio Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","Department of Electronics and Radio Engineering, Kyung Hee University, Suwon 446-701, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics and Radio Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","institution_ids":["https://openalex.org/I35928602"]},{"raw_affiliation_string":"Department of Electronics and Radio Engineering, Kyung Hee University, Suwon 446-701, Korea","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075905746","display_name":"Een\u2010Kee Hong","orcid":"https://orcid.org/0000-0001-5086-4008"},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Een-Kee Hong","raw_affiliation_strings":["Department of Electronics and Radio Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","Department of Electronics and Radio Engineering, Kyung Hee University, Suwon 446-701, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics and Radio Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","institution_ids":["https://openalex.org/I35928602"]},{"raw_affiliation_string":"Department of Electronics and Radio Engineering, Kyung Hee University, Suwon 446-701, Korea","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034072443","display_name":"Eun\u2010Seong Kim","orcid":"https://orcid.org/0000-0002-2440-9228"},"institutions":[{"id":"https://openalex.org/I161024014","display_name":"Kwangwoon University","ror":"https://ror.org/02e9zc863","country_code":"KR","type":"education","lineage":["https://openalex.org/I161024014"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Eun Kim","raw_affiliation_strings":["Department of Electronic Engineering, Kwangwoon University, Seoul 139\u2013701, Korea","Department of Electronic Engineering, Kwangwoon University, Seoul 139 701, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Kwangwoon University, Seoul 139\u2013701, Korea","institution_ids":["https://openalex.org/I161024014"]},{"raw_affiliation_string":"Department of Electronic Engineering, Kwangwoon University, Seoul 139 701, Korea","institution_ids":["https://openalex.org/I161024014"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101882040","display_name":"Sungyoung Lee","orcid":"https://orcid.org/0000-0002-5962-1587"},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Sungyoung Lee","raw_affiliation_strings":["Department of Computer Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","Department of Computer Engineering, Kyung Hee University, Suwon 446-701, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering, Kyung Hee University, Suwon 446\u2013701, Korea","institution_ids":["https://openalex.org/I35928602"]},{"raw_affiliation_string":"Department of Computer Engineering, Kyung Hee University, Suwon 446-701, Korea","institution_ids":["https://openalex.org/I35928602"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5101882040"],"corresponding_institution_ids":["https://openalex.org/I35928602"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":2.7186,"has_fulltext":false,"cited_by_count":54,"citation_normalized_percentile":{"value":0.92039664,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"14","issue":"4","first_page":"6370","last_page":"6392"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","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/T10812","display_name":"Human Pose and Action Recognition","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/T11512","display_name":"Anomaly Detection Techniques and Applications","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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":0.9991999864578247,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.7719682455062866},{"id":"https://openalex.org/keywords/hidden-markov-model","display_name":"Hidden Markov model","score":0.7697057723999023},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.7570109367370605},{"id":"https://openalex.org/keywords/linear-discriminant-analysis","display_name":"Linear discriminant analysis","score":0.7507708668708801},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5807649493217468},{"id":"https://openalex.org/keywords/classifier","display_name":"Classifier (UML)","score":0.5564889907836914},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.5453913807868958},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.5436763763427734},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.4645267426967621},{"id":"https://openalex.org/keywords/discriminant","display_name":"Discriminant","score":0.43318140506744385},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.34402668476104736},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.33575189113616943}],"concepts":[{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.7719682455062866},{"id":"https://openalex.org/C23224414","wikidata":"https://www.wikidata.org/wiki/Q176769","display_name":"Hidden Markov model","level":2,"score":0.7697057723999023},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7570109367370605},{"id":"https://openalex.org/C69738355","wikidata":"https://www.wikidata.org/wiki/Q1228929","display_name":"Linear discriminant analysis","level":2,"score":0.7507708668708801},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5807649493217468},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.5564889907836914},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.5453913807868958},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.5436763763427734},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.4645267426967621},{"id":"https://openalex.org/C78397625","wikidata":"https://www.wikidata.org/wiki/Q192487","display_name":"Discriminant","level":2,"score":0.43318140506744385},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.34402668476104736},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.33575189113616943}],"mesh":[{"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":"D008390","descriptor_name":"Markov Chains","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008390","descriptor_name":"Markov Chains","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008390","descriptor_name":"Markov Chains","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D014741","descriptor_name":"Video Recording","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D014741","descriptor_name":"Video Recording","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D014741","descriptor_name":"Video Recording","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D016002","descriptor_name":"Discriminant Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D016002","descriptor_name":"Discriminant Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D016002","descriptor_name":"Discriminant Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D019992","descriptor_name":"Databases as Topic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D019992","descriptor_name":"Databases as Topic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D019992","descriptor_name":"Databases as Topic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D025341","descriptor_name":"Principal Component Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D025341","descriptor_name":"Principal Component Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D025341","descriptor_name":"Principal Component Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D058067","descriptor_name":"Wavelet Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D058067","descriptor_name":"Wavelet Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D058067","descriptor_name":"Wavelet Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":6,"locations":[{"id":"doi:10.3390/s140406370","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s140406370","pdf_url":"https://www.mdpi.com/1424-8220/14/4/6370/pdf?version=1403352199","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:24714390","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/24714390","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:bfd6dcdce41444e59c1de5ca4cee2a59","is_oa":true,"landing_page_url":"https://doaj.org/article/bfd6dcdce41444e59c1de5ca4cee2a59","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 14, Iss 4, Pp 6370-6392 (2014)","raw_type":"article"},{"id":"pmh:oai:europepmc.org:3005094","is_oa":true,"landing_page_url":"http://europepmc.org/articles/PMC4029654","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:/1424-8220/14/4/6370/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s140406370","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 14; Issue 4; Pages: 6370-6392","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:4029654","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/4029654","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/s140406370","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s140406370","pdf_url":"https://www.mdpi.com/1424-8220/14/4/6370/pdf?version=1403352199","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":[{"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities","score":0.6899999976158142}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1988936217.pdf","grobid_xml":"https://content.openalex.org/works/W1988936217.grobid-xml"},"referenced_works_count":68,"referenced_works":["https://openalex.org/W89777415","https://openalex.org/W110553271","https://openalex.org/W1480865305","https://openalex.org/W1575431606","https://openalex.org/W1964393907","https://openalex.org/W1975036395","https://openalex.org/W1975226595","https://openalex.org/W1975747104","https://openalex.org/W1983705368","https://openalex.org/W1993014362","https://openalex.org/W1999789440","https://openalex.org/W2004994966","https://openalex.org/W2010399676","https://openalex.org/W2010838375","https://openalex.org/W2012027675","https://openalex.org/W2030786923","https://openalex.org/W2031338200","https://openalex.org/W2034281151","https://openalex.org/W2034328688","https://openalex.org/W2034899024","https://openalex.org/W2041657594","https://openalex.org/W2046450513","https://openalex.org/W2067202211","https://openalex.org/W2074559009","https://openalex.org/W2080353936","https://openalex.org/W2085535099","https://openalex.org/W2091841459","https://openalex.org/W2094116030","https://openalex.org/W2098415582","https://openalex.org/W2099805216","https://openalex.org/W2100916003","https://openalex.org/W2107281533","https://openalex.org/W2109761267","https://openalex.org/W2113020519","https://openalex.org/W2119350939","https://openalex.org/W2120081246","https://openalex.org/W2121647436","https://openalex.org/W2126574503","https://openalex.org/W2126579184","https://openalex.org/W2130713698","https://openalex.org/W2132549764","https://openalex.org/W2141079615","https://openalex.org/W2142194269","https://openalex.org/W2145576843","https://openalex.org/W2150796457","https://openalex.org/W2152619267","https://openalex.org/W2154346517","https://openalex.org/W2155763684","https://openalex.org/W2156059598","https://openalex.org/W2160502168","https://openalex.org/W2188000534","https://openalex.org/W2404218691","https://openalex.org/W2475432418","https://openalex.org/W2533739470","https://openalex.org/W2598067424","https://openalex.org/W3100876745","https://openalex.org/W4232776754","https://openalex.org/W4237044863","https://openalex.org/W4249279051","https://openalex.org/W4285719527","https://openalex.org/W6628636345","https://openalex.org/W6652671445","https://openalex.org/W6658217301","https://openalex.org/W6658929250","https://openalex.org/W6675238173","https://openalex.org/W6682193038","https://openalex.org/W6682708838","https://openalex.org/W6721461273"],"related_works":["https://openalex.org/W2350751952","https://openalex.org/W2362114017","https://openalex.org/W1999647744","https://openalex.org/W3147024994","https://openalex.org/W1978302214","https://openalex.org/W2374055396","https://openalex.org/W2063246903","https://openalex.org/W2021817983","https://openalex.org/W3021047493","https://openalex.org/W2371177901"],"abstract_inverted_index":{"Video-based":[0],"human":[1,13],"activity":[2,56,92,120],"recognition":[3,57,201],"(HAR)":[4],"means":[5],"the":[6,15,20,37,88,91,115,119,148,152,158,161,193,204,209,223],"analysis":[7,71,109],"of":[8,12,39,63,160,185,195],"motions":[9],"and":[10,30,42,53,122,182,227],"behaviors":[11],"from":[14,90,118],"low":[16],"level":[17],"sensors.":[18],"Over":[19],"last":[21],"decade,":[22],"automatic":[23],"HAR":[24],"is":[25,31,214],"an":[26,54],"exigent":[27],"research":[28],"area":[29],"considered":[32],"a":[33,51,102,137,183,215],"significant":[34,216],"concern":[35],"in":[36,84,189,218],"field":[38],"computer":[40],"vision":[41],"pattern":[43],"recognition.":[44],"In":[45,154],"this":[46],"paper,":[47],"we":[48,135,163],"have":[49],"presented":[50],"robust":[52,103],"accurate":[55],"system":[58],"called":[59,105,141],"WS-HAR":[60,205],"that":[61,111,213],"consists":[62],"wavelet":[64,80],"transform":[65],"coupled":[66],"with":[67],"stepwise":[68,106],"linear":[69,107],"discriminant":[70,108],"(SWLDA)":[72,110],"followed":[73],"by":[74,100],"hidden":[75,142],"Markov":[76,143],"model":[77,144],"(HMM).":[78],"Symlet":[79],"has":[81],"been":[82],"employed":[83],"order":[85,155,190],"to":[86,146,151,156,191,222],"extract":[87],"features":[89,97,117],"frames.":[93],"The":[94,198],"most":[95],"prominent":[96],"were":[98],"selected":[99],"proposing":[101],"technique":[104],"focuses":[112],"on":[113,127,180],"selecting":[114],"localized":[116],"frames":[121],"discriminating":[123],"their":[124],"class":[125],"based":[126,179],"regression":[128],"values":[129],"(i.e.,":[130],"partial":[131],"F-test":[132],"values).":[133],"Finally,":[134],"applied":[136],"well-known":[138,225],"sequential":[139],"classifier":[140],"(HMM)":[145],"give":[147],"appropriate":[149],"labels":[150],"activities.":[153],"validate":[157],"performance":[159],"WS-HAR,":[162],"utilized":[164],"two":[165,171,210],"publicly":[166],"available":[167],"standard":[168],"datasets":[169,212],"under":[170],"different":[172,211],"experimental":[173],"settings,":[174],"n??fold":[175],"cross":[176],"validation":[177],"scheme":[178],"subjects;":[181],"set":[184],"experiments":[186],"was":[187,206],"performed":[188],"show":[192],"effectiveness":[194],"each":[196],"approach.":[197],"weighted":[199],"average":[200],"rate":[202],"for":[203],"97%":[207],"across":[208],"improvement":[217],"classication":[219],"accuracy":[220],"compared":[221],"existing":[224],"statistical":[226],"state-of-the-art":[228],"methods.":[229]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":13},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":1}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}