{"id":"https://openalex.org/W2140970631","doi":"https://doi.org/10.1109/tip.2013.2292550","title":"Action Recognition Using Nonnegative Action Component Representation and Sparse Basis Selection","display_name":"Action Recognition Using Nonnegative Action Component Representation and Sparse Basis Selection","publication_year":2014,"publication_date":"2014-01-03","ids":{"openalex":"https://openalex.org/W2140970631","doi":"https://doi.org/10.1109/tip.2013.2292550","mag":"2140970631","pmid":"https://pubmed.ncbi.nlm.nih.gov/26270909"},"language":"en","primary_location":{"id":"doi:10.1109/tip.2013.2292550","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2013.2292550","pdf_url":null,"source":{"id":"https://openalex.org/S4210173141","display_name":"IEEE Transactions on Image Processing","issn_l":"1057-7149","issn":["1057-7149","1941-0042"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Image Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100324809","display_name":"Haoran Wang","orcid":"https://orcid.org/0000-0001-6350-5645"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Haoran Wang","raw_affiliation_strings":["Southeast University, School of Automation, Nanjing, China","school of automation, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Southeast University, School of Automation, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"school of automation, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005377211","display_name":"Chunfeng Yuan","orcid":"https://orcid.org/0000-0003-2219-4961"},"institutions":[{"id":"https://openalex.org/I4210112150","display_name":"Institute of Automation","ror":"https://ror.org/022c3hy66","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210112150"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210094879","display_name":"Shandong Institute of Automation","ror":"https://ror.org/00qdtba35","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210094879","https://openalex.org/I4210142748"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chunfeng Yuan","raw_affiliation_strings":["Chinese Academy of Sciences, Institute of Automation, Beijing, China","Nat. Lab. of Pattern Recognition, Inst. of Autom., Beijing, China"],"affiliations":[{"raw_affiliation_string":"Chinese Academy of Sciences, Institute of Automation, Beijing, China","institution_ids":["https://openalex.org/I4210112150","https://openalex.org/I19820366"]},{"raw_affiliation_string":"Nat. Lab. of Pattern Recognition, Inst. of Autom., Beijing, China","institution_ids":["https://openalex.org/I4210094879"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5114549594","display_name":"Weiming Hu","orcid":"https://orcid.org/0000-0001-9237-8825"},"institutions":[{"id":"https://openalex.org/I4210112150","display_name":"Institute of Automation","ror":"https://ror.org/022c3hy66","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210112150"]},{"id":"https://openalex.org/I4210094879","display_name":"Shandong Institute of Automation","ror":"https://ror.org/00qdtba35","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210094879","https://openalex.org/I4210142748"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weiming Hu","raw_affiliation_strings":["Chinese Academy of Sciences, Institute of Automation, Beijing, China","Nat. Lab. of Pattern Recognition, Inst. of Autom., Beijing, China"],"affiliations":[{"raw_affiliation_string":"Chinese Academy of Sciences, Institute of Automation, Beijing, China","institution_ids":["https://openalex.org/I4210112150","https://openalex.org/I19820366"]},{"raw_affiliation_string":"Nat. Lab. of Pattern Recognition, Inst. of Autom., Beijing, China","institution_ids":["https://openalex.org/I4210094879"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061469520","display_name":"Haibin Ling","orcid":"https://orcid.org/0000-0003-4094-8413"},"institutions":[{"id":"https://openalex.org/I84392919","display_name":"Temple University","ror":"https://ror.org/00kx1jb78","country_code":"US","type":"education","lineage":["https://openalex.org/I84392919"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Haibin Ling","raw_affiliation_strings":["Department of Computer and Information Science, Temple University, Philadelphia, PA, USA","Department of Computer and Information Science, Temple University, Philadelphia PA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer and Information Science, Temple University, Philadelphia, PA, USA","institution_ids":["https://openalex.org/I84392919"]},{"raw_affiliation_string":"Department of Computer and Information Science, Temple University, Philadelphia PA, USA","institution_ids":["https://openalex.org/I84392919"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100748706","display_name":"Wankou Yang","orcid":"https://orcid.org/0000-0002-6385-6776"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wankou Yang","raw_affiliation_strings":["Southeast University, School of Automation, Nanjing, China","school of automation, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Southeast University, School of Automation, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"school of automation, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5019248683","display_name":"Changyin Sun","orcid":"https://orcid.org/0000-0001-9269-334X"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Changyin Sun","raw_affiliation_strings":["Southeast University, School of Automation, Nanjing, China","school of automation, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Southeast University, School of Automation, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"school of automation, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5100324809"],"corresponding_institution_ids":["https://openalex.org/I76569877"],"apc_list":null,"apc_paid":null,"fwci":9.2671,"has_fulltext":false,"cited_by_count":58,"citation_normalized_percentile":{"value":0.9851402,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":100},"biblio":{"volume":"23","issue":"2","first_page":"570","last_page":"581"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","score":1.0,"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":1.0,"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":0.9969000220298767,"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"}},{"id":"https://openalex.org/T11714","display_name":"Multimodal Machine Learning Applications","score":0.9952999949455261,"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/artificial-intelligence","display_name":"Artificial intelligence","score":0.6510695815086365},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6213594079017639},{"id":"https://openalex.org/keywords/sparse-approximation","display_name":"Sparse approximation","score":0.5864011645317078},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.570572018623352},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.5203623175621033},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.5084618330001831},{"id":"https://openalex.org/keywords/action-recognition","display_name":"Action recognition","score":0.4551524817943573},{"id":"https://openalex.org/keywords/action","display_name":"Action (physics)","score":0.4505957067012787},{"id":"https://openalex.org/keywords/notation","display_name":"Notation","score":0.4496493935585022},{"id":"https://openalex.org/keywords/non-negative-matrix-factorization","display_name":"Non-negative matrix factorization","score":0.4344819188117981},{"id":"https://openalex.org/keywords/matrix-decomposition","display_name":"Matrix decomposition","score":0.3622722625732422},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3539889454841614},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.310200572013855},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.30308863520622253}],"concepts":[{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6510695815086365},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6213594079017639},{"id":"https://openalex.org/C124066611","wikidata":"https://www.wikidata.org/wiki/Q28684319","display_name":"Sparse approximation","level":2,"score":0.5864011645317078},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.570572018623352},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.5203623175621033},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5084618330001831},{"id":"https://openalex.org/C2987834672","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Action recognition","level":3,"score":0.4551524817943573},{"id":"https://openalex.org/C2780791683","wikidata":"https://www.wikidata.org/wiki/Q846785","display_name":"Action (physics)","level":2,"score":0.4505957067012787},{"id":"https://openalex.org/C45357846","wikidata":"https://www.wikidata.org/wiki/Q2001982","display_name":"Notation","level":2,"score":0.4496493935585022},{"id":"https://openalex.org/C152671427","wikidata":"https://www.wikidata.org/wiki/Q10843505","display_name":"Non-negative matrix factorization","level":4,"score":0.4344819188117981},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.3622722625732422},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3539889454841614},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.310200572013855},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.30308863520622253},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0}],"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":"D007089","descriptor_name":"Image Enhancement","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007089","descriptor_name":"Image Enhancement","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007089","descriptor_name":"Image Enhancement","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007090","descriptor_name":"Image Interpretation, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007090","descriptor_name":"Image Interpretation, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007090","descriptor_name":"Image Interpretation, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D009043","descriptor_name":"Motor Activity","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D009043","descriptor_name":"Motor Activity","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D009043","descriptor_name":"Motor Activity","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D009068","descriptor_name":"Movement","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D009068","descriptor_name":"Movement","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D009068","descriptor_name":"Movement","qualifier_ui":"Q000502","qualifier_name":"physiology","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":"D010781","descriptor_name":"Photography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010781","descriptor_name":"Photography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010781","descriptor_name":"Photography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D012680","descriptor_name":"Sensitivity and Specificity","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012680","descriptor_name":"Sensitivity and Specificity","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012680","descriptor_name":"Sensitivity and Specificity","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013382","descriptor_name":"Subtraction Technique","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D013382","descriptor_name":"Subtraction Technique","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D013382","descriptor_name":"Subtraction Technique","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D021621","descriptor_name":"Imaging, Three-Dimensional","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D021621","descriptor_name":"Imaging, Three-Dimensional","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D021621","descriptor_name":"Imaging, Three-Dimensional","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D051598","descriptor_name":"Whole Body Imaging","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D051598","descriptor_name":"Whole Body Imaging","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D051598","descriptor_name":"Whole Body Imaging","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1109/tip.2013.2292550","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2013.2292550","pdf_url":null,"source":{"id":"https://openalex.org/S4210173141","display_name":"IEEE Transactions on Image Processing","issn_l":"1057-7149","issn":["1057-7149","1941-0042"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Image Processing","raw_type":"journal-article"},{"id":"pmid:26270909","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/26270909","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":"IEEE transactions on image processing : a publication of the IEEE Signal Processing Society","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.699999988079071,"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":96,"referenced_works":["https://openalex.org/W7859433","https://openalex.org/W10916678","https://openalex.org/W45528431","https://openalex.org/W1489737693","https://openalex.org/W1498368596","https://openalex.org/W1528802670","https://openalex.org/W1553044651","https://openalex.org/W1902027874","https://openalex.org/W1945475446","https://openalex.org/W1964313667","https://openalex.org/W1970817423","https://openalex.org/W1976645892","https://openalex.org/W1979606776","https://openalex.org/W1979936637","https://openalex.org/W1984912494","https://openalex.org/W1993229407","https://openalex.org/W1999192586","https://openalex.org/W2003543060","https://openalex.org/W2010399676","https://openalex.org/W2024868105","https://openalex.org/W2025508903","https://openalex.org/W2034328688","https://openalex.org/W2053090063","https://openalex.org/W2055753778","https://openalex.org/W2059745395","https://openalex.org/W2063153269","https://openalex.org/W2064851185","https://openalex.org/W2068611653","https://openalex.org/W2080370442","https://openalex.org/W2084341401","https://openalex.org/W2092367756","https://openalex.org/W2095661305","https://openalex.org/W2096691069","https://openalex.org/W2097089830","https://openalex.org/W2098411764","https://openalex.org/W2099339725","https://openalex.org/W2100367199","https://openalex.org/W2100916003","https://openalex.org/W2101194540","https://openalex.org/W2102841407","https://openalex.org/W2108119513","https://openalex.org/W2108333036","https://openalex.org/W2109761267","https://openalex.org/W2110142955","https://openalex.org/W2114016557","https://openalex.org/W2114361838","https://openalex.org/W2116931983","https://openalex.org/W2122528955","https://openalex.org/W2124017786","https://openalex.org/W2128305246","https://openalex.org/W2129418188","https://openalex.org/W2130843763","https://openalex.org/W2131311058","https://openalex.org/W2134270519","https://openalex.org/W2135658380","https://openalex.org/W2136853139","https://openalex.org/W2136917337","https://openalex.org/W2138232383","https://openalex.org/W2142194269","https://openalex.org/W2143254810","https://openalex.org/W2146022472","https://openalex.org/W2147615062","https://openalex.org/W2155268664","https://openalex.org/W2155779606","https://openalex.org/W2156135524","https://openalex.org/W2158169396","https://openalex.org/W2158699018","https://openalex.org/W2161566726","https://openalex.org/W2163273012","https://openalex.org/W2163292664","https://openalex.org/W2165715280","https://openalex.org/W2165846633","https://openalex.org/W2172207578","https://openalex.org/W2533739470","https://openalex.org/W2537988662","https://openalex.org/W2543453567","https://openalex.org/W2547599103","https://openalex.org/W2990138404","https://openalex.org/W2999905431","https://openalex.org/W3143107425","https://openalex.org/W4249279051","https://openalex.org/W6600334036","https://openalex.org/W6601909474","https://openalex.org/W6630009274","https://openalex.org/W6631694491","https://openalex.org/W6648464962","https://openalex.org/W6675296101","https://openalex.org/W6675350891","https://openalex.org/W6676671045","https://openalex.org/W6677137762","https://openalex.org/W6678145947","https://openalex.org/W6679000042","https://openalex.org/W6679761776","https://openalex.org/W6683560012","https://openalex.org/W6684290682","https://openalex.org/W6729213900"],"related_works":["https://openalex.org/W2127243424","https://openalex.org/W4390394189","https://openalex.org/W2037504162","https://openalex.org/W2539013788","https://openalex.org/W2792706544","https://openalex.org/W1568451138","https://openalex.org/W2156699640","https://openalex.org/W2045265907","https://openalex.org/W2972997031","https://openalex.org/W2075222291"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,39,70,103],"propose":[4,40,104],"using":[5,74],"high-level":[6],"action":[7,28,72,100,123,131],"units":[8,73,93],"to":[9,51,83,113],"represent":[10],"human":[11,27],"actions":[12,140],"in":[13,35,99,121],"videos":[14],"and,":[15],"based":[16,108],"on":[17,109,153],"such":[18],"units,":[19],"a":[20,41,84,105,110],"novel":[21],"sparse":[22,106,134],"model":[23,107,135],"is":[24,151],"developed":[25],"for":[26,130],"recognition.":[29,101],"There":[30],"are":[31],"three":[32],"interconnected":[33],"components":[34],"our":[36],"approach.":[37,171],"First,":[38],"new":[42],"context-aware":[43,68],"spatial-temporal":[44,60],"descriptor,":[45],"named":[46],"locally":[47],"weighted":[48],"word":[49],"context,":[50],"improve":[52],"the":[53,56,64,67,75,89,96,115,122,128,133,137,142,166,169],"discriminability":[54],"of":[55,66,168],"traditionally":[57],"used":[58],"local":[59],"descriptors.":[61],"Second,":[62],"from":[63,141],"statistics":[65],"descriptors,":[69],"learn":[71],"graph":[76],"regularized":[77],"nonnegative":[78],"matrix":[79],"factorization,":[80],"which":[81],"leads":[82],"part-based":[85],"representation":[86],"and":[87,118,162],"encodes":[88],"geometrical":[90],"information.":[91],"These":[92],"effectively":[94],"bridge":[95],"semantic":[97],"gap":[98],"Third,":[102],"joint":[111],"l2,1-norm":[112],"preserve":[114],"representative":[116],"items":[117],"suppress":[119],"noise":[120],"units.":[124,147],"Intuitively,":[125],"when":[126],"learning":[127],"dictionary":[129],"representation,":[132],"captures":[136],"fact":[138],"that":[139],"same":[143],"class":[144],"share":[145],"similar":[146],"The":[148,159],"proposed":[149,170],"approach":[150],"evaluated":[152],"several":[154],"publicly":[155],"available":[156],"data":[157],"sets.":[158],"experimental":[160],"results":[161],"analysis":[163],"clearly":[164],"demonstrate":[165],"effectiveness":[167]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":6},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":9},{"year":2016,"cited_by_count":18},{"year":2015,"cited_by_count":10},{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}