{"id":"https://openalex.org/W4407315509","doi":"https://doi.org/10.1109/tcsvt.2025.3540292","title":"Unsupervised Feature Enrichment and Fidelity Preservation Learning Framework for Skeleton-Based Action Recognition","display_name":"Unsupervised Feature Enrichment and Fidelity Preservation Learning Framework for Skeleton-Based Action Recognition","publication_year":2025,"publication_date":"2025-02-10","ids":{"openalex":"https://openalex.org/W4407315509","doi":"https://doi.org/10.1109/tcsvt.2025.3540292"},"language":"en","primary_location":{"id":"doi:10.1109/tcsvt.2025.3540292","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsvt.2025.3540292","pdf_url":null,"source":{"id":"https://openalex.org/S115173108","display_name":"IEEE Transactions on Circuits and Systems for Video Technology","issn_l":"1051-8215","issn":["1051-8215","1558-2205"],"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 Circuits and Systems for Video Technology","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"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/A5049344955","display_name":"Chuankun Li","orcid":"https://orcid.org/0000-0001-9427-8780"},"institutions":[{"id":"https://openalex.org/I135714990","display_name":"North University of China","ror":"https://ror.org/047bp1713","country_code":"CN","type":"education","lineage":["https://openalex.org/I135714990"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Chuankun Li","raw_affiliation_strings":["State Key Laboratory of Dynamic Testing Technology and the School of Information and Communication Engineering, North University of China, Taiyuan, China","State Key Laboratory of Dynamic Testing Technology and School of Information and Communication Engineering, North University of China, Taiyuan, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Dynamic Testing Technology and the School of Information and Communication Engineering, North University of China, Taiyuan, China","institution_ids":["https://openalex.org/I135714990"]},{"raw_affiliation_string":"State Key Laboratory of Dynamic Testing Technology and School of Information and Communication Engineering, North University of China, Taiyuan, China","institution_ids":["https://openalex.org/I135714990"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100702796","display_name":"Shuai Li","orcid":"https://orcid.org/0000-0002-9938-0917"},"institutions":[{"id":"https://openalex.org/I154099455","display_name":"Shandong University","ror":"https://ror.org/0207yh398","country_code":"CN","type":"education","lineage":["https://openalex.org/I154099455"]},{"id":"https://openalex.org/I1327237609","display_name":"Ministry of Education of the People's Republic of China","ror":"https://ror.org/01mv9t934","country_code":"CN","type":"funder","lineage":["https://openalex.org/I1327237609","https://openalex.org/I4210127390"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuai Li","raw_affiliation_strings":["School of Control Science and Engineering, Key Laboratory of Machine Intelligence and System Control, Ministry of Education, Shandong University, Jinan, China","School of Control Science and Engineering and School of Software, Shandong University, Jinan, China"],"affiliations":[{"raw_affiliation_string":"School of Control Science and Engineering, Key Laboratory of Machine Intelligence and System Control, Ministry of Education, Shandong University, Jinan, China","institution_ids":["https://openalex.org/I1327237609"]},{"raw_affiliation_string":"School of Control Science and Engineering and School of Software, Shandong University, Jinan, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054129422","display_name":"Yanbo Gao","orcid":"https://orcid.org/0000-0001-9584-9290"},"institutions":[{"id":"https://openalex.org/I154099455","display_name":"Shandong University","ror":"https://ror.org/0207yh398","country_code":"CN","type":"education","lineage":["https://openalex.org/I154099455"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanbo Gao","raw_affiliation_strings":["School of Software, Shandong University, Jinan, China","School of Control Science and Engineering and School of Software, Shandong University, Jinan, China"],"affiliations":[{"raw_affiliation_string":"School of Software, Shandong University, Jinan, China","institution_ids":["https://openalex.org/I154099455"]},{"raw_affiliation_string":"School of Control Science and Engineering and School of Software, Shandong University, Jinan, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004694827","display_name":"Xingyu Gao","orcid":"https://orcid.org/0000-0002-4660-8092"},"institutions":[{"id":"https://openalex.org/I4210119392","display_name":"Institute of Microelectronics","ror":"https://ror.org/02s6gs133","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210119392"]},{"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":"Xingyu Gao","raw_affiliation_strings":["Institute of Microelectronics, Chinese Academy of Sciences, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Institute of Microelectronics, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210119392","https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021641125","display_name":"Ping Chen","orcid":"https://orcid.org/0000-0003-0684-9665"},"institutions":[{"id":"https://openalex.org/I135714990","display_name":"North University of China","ror":"https://ror.org/047bp1713","country_code":"CN","type":"education","lineage":["https://openalex.org/I135714990"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ping Chen","raw_affiliation_strings":["State Key Laboratory of Dynamic Testing Technology and the School of Information and Communication Engineering, North University of China, Taiyuan, China","State Key Laboratory of Dynamic Testing Technology and School of Information and Communication Engineering, North University of China, Taiyuan, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Dynamic Testing Technology and the School of Information and Communication Engineering, North University of China, Taiyuan, China","institution_ids":["https://openalex.org/I135714990"]},{"raw_affiliation_string":"State Key Laboratory of Dynamic Testing Technology and School of Information and Communication Engineering, North University of China, Taiyuan, China","institution_ids":["https://openalex.org/I135714990"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100402477","display_name":"Jian Li","orcid":"https://orcid.org/0000-0002-2282-9624"},"institutions":[{"id":"https://openalex.org/I135714990","display_name":"North University of China","ror":"https://ror.org/047bp1713","country_code":"CN","type":"education","lineage":["https://openalex.org/I135714990"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jian Li","raw_affiliation_strings":["State Key Laboratory of Dynamic Testing Technology and the School of Information and Communication Engineering, North University of China, Taiyuan, China","State Key Laboratory of Dynamic Testing Technology and School of Information and Communication Engineering, North University of China, Taiyuan, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Dynamic Testing Technology and the School of Information and Communication Engineering, North University of China, Taiyuan, China","institution_ids":["https://openalex.org/I135714990"]},{"raw_affiliation_string":"State Key Laboratory of Dynamic Testing Technology and School of Information and Communication Engineering, North University of China, Taiyuan, China","institution_ids":["https://openalex.org/I135714990"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100695040","display_name":"Wanqing Li","orcid":"https://orcid.org/0000-0002-4427-2687"},"institutions":[{"id":"https://openalex.org/I204824540","display_name":"University of Wollongong","ror":"https://ror.org/00jtmb277","country_code":"AU","type":"education","lineage":["https://openalex.org/I204824540"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Wanqing Li","raw_affiliation_strings":["Advanced Multimedia Research Laboratory, University of Wollongong, Wollongong, NSW, Australia","Advanced Multimedia Research Lab, University of Wollongong, Wollongong, NSW, Australia"],"affiliations":[{"raw_affiliation_string":"Advanced Multimedia Research Laboratory, University of Wollongong, Wollongong, NSW, Australia","institution_ids":["https://openalex.org/I204824540"]},{"raw_affiliation_string":"Advanced Multimedia Research Lab, University of Wollongong, Wollongong, NSW, Australia","institution_ids":["https://openalex.org/I204824540"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5049344955"],"corresponding_institution_ids":["https://openalex.org/I135714990"],"apc_list":null,"apc_paid":null,"fwci":3.9313,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.92431341,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"35","issue":"7","first_page":"7116","last_page":"7128"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","score":0.9984999895095825,"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":0.9984999895095825,"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":0.9771000146865845,"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/T12740","display_name":"Gait Recognition and Analysis","score":0.9387999773025513,"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/computer-science","display_name":"Computer science","score":0.7152117490768433},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5898511409759521},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.5812323093414307},{"id":"https://openalex.org/keywords/skeleton","display_name":"Skeleton (computer programming)","score":0.5720458626747131},{"id":"https://openalex.org/keywords/action-recognition","display_name":"Action recognition","score":0.5617086291313171},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5336369276046753},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.46791747212409973},{"id":"https://openalex.org/keywords/fidelity","display_name":"Fidelity","score":0.44679147005081177},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3943276107311249}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7152117490768433},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5898511409759521},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.5812323093414307},{"id":"https://openalex.org/C18969341","wikidata":"https://www.wikidata.org/wiki/Q1169129","display_name":"Skeleton (computer programming)","level":2,"score":0.5720458626747131},{"id":"https://openalex.org/C2987834672","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Action recognition","level":3,"score":0.5617086291313171},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5336369276046753},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.46791747212409973},{"id":"https://openalex.org/C2776459999","wikidata":"https://www.wikidata.org/wiki/Q2119376","display_name":"Fidelity","level":2,"score":0.44679147005081177},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3943276107311249},{"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/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcsvt.2025.3540292","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsvt.2025.3540292","pdf_url":null,"source":{"id":"https://openalex.org/S115173108","display_name":"IEEE Transactions on Circuits and Systems for Video Technology","issn_l":"1051-8215","issn":["1051-8215","1558-2205"],"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 Circuits and Systems for Video Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4937545743","display_name":null,"funder_award_id":"62001429","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5835078215","display_name":null,"funder_award_id":"62271453","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7549858583","display_name":null,"funder_award_id":"62271290","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8000696142","display_name":null,"funder_award_id":"62101512","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":86,"referenced_works":["https://openalex.org/W1950788856","https://openalex.org/W2021150171","https://openalex.org/W2047612595","https://openalex.org/W2048821851","https://openalex.org/W2145546283","https://openalex.org/W2554408731","https://openalex.org/W2593146028","https://openalex.org/W2603861860","https://openalex.org/W2604321021","https://openalex.org/W2716916105","https://openalex.org/W2736334449","https://openalex.org/W2736995747","https://openalex.org/W2761860076","https://openalex.org/W2783128845","https://openalex.org/W2787919227","https://openalex.org/W2792345332","https://openalex.org/W2793547936","https://openalex.org/W2899936784","https://openalex.org/W2905706796","https://openalex.org/W2942750779","https://openalex.org/W2944006115","https://openalex.org/W2948058585","https://openalex.org/W2948246283","https://openalex.org/W2963076818","https://openalex.org/W2964134613","https://openalex.org/W2964347220","https://openalex.org/W2973511309","https://openalex.org/W2997624179","https://openalex.org/W3002181557","https://openalex.org/W3008273026","https://openalex.org/W3033793613","https://openalex.org/W3034548564","https://openalex.org/W3035050855","https://openalex.org/W3035225512","https://openalex.org/W3035524453","https://openalex.org/W3047772167","https://openalex.org/W3081111248","https://openalex.org/W3092424783","https://openalex.org/W3109306201","https://openalex.org/W3110854813","https://openalex.org/W3141495342","https://openalex.org/W3156509901","https://openalex.org/W3165978997","https://openalex.org/W3169413442","https://openalex.org/W3170039146","https://openalex.org/W3172117784","https://openalex.org/W3174053790","https://openalex.org/W3203634062","https://openalex.org/W3205106480","https://openalex.org/W3212618454","https://openalex.org/W3216909972","https://openalex.org/W4205831148","https://openalex.org/W4226027695","https://openalex.org/W4240042586","https://openalex.org/W4282981352","https://openalex.org/W4286685089","https://openalex.org/W4288064503","https://openalex.org/W4293518008","https://openalex.org/W4309368547","https://openalex.org/W4312675926","https://openalex.org/W4321393034","https://openalex.org/W4323338522","https://openalex.org/W4323897056","https://openalex.org/W4360993903","https://openalex.org/W4382240124","https://openalex.org/W4385453100","https://openalex.org/W4385768200","https://openalex.org/W4386065445","https://openalex.org/W4386076095","https://openalex.org/W4386108371","https://openalex.org/W4386702846","https://openalex.org/W4387968040","https://openalex.org/W4390871931","https://openalex.org/W4390872019","https://openalex.org/W4390906058","https://openalex.org/W4391693788","https://openalex.org/W4392543688","https://openalex.org/W4393148248","https://openalex.org/W4399404947","https://openalex.org/W4399800460","https://openalex.org/W4400647163","https://openalex.org/W4400726480","https://openalex.org/W6768974198","https://openalex.org/W6779326418","https://openalex.org/W6850445340","https://openalex.org/W6860563548"],"related_works":["https://openalex.org/W2381850946","https://openalex.org/W4380449851","https://openalex.org/W3125091513","https://openalex.org/W2953562271","https://openalex.org/W4248383205","https://openalex.org/W4234745530","https://openalex.org/W2334655667","https://openalex.org/W2146383839","https://openalex.org/W4399611050","https://openalex.org/W3170431411"],"abstract_inverted_index":{"Unsupervised":[0,105],"skeleton-based":[1,41],"action":[2,42,70,90],"recognition":[3,43],"has":[4],"achieved":[5],"remarkable":[6],"progress":[7],"recently.":[8],"Existing":[9],"unsupervised":[10,38,76,157,172,188,228],"learning":[11,39,77,113,162,175,189,229],"methods":[12],"suffer":[13],"from":[14],"severe":[15],"overfitting":[16,34,95],"problem,":[17,32,100],"and":[18,57,109,143,170,198,212],"thus":[19],"small":[20],"networks":[21],"are":[22,191],"used,":[23],"significantly":[24],"reducing":[25],"the":[26,33,37,63,67,74,85,94,123,151,171,180,184,217,221,226],"representation":[27],"capability.":[28],"To":[29,97],"address":[30,98],"this":[31,99,101],"mechanism":[35],"behind":[36],"for":[40,69],"is":[44,48,52,134,163,176],"first":[45],"investigated.":[46],"It":[47],"observed":[49],"that":[50,83,120,216],"skeleton":[51,127],"already":[53],"a":[54,126],"relatively":[55],"high-level":[56],"low-dimension":[58],"feature,":[59],"but":[60],"not":[61],"in":[62,93,183],"same":[64],"manifold":[65],"as":[66,150,193],"features":[68,82,119],"recognition.":[71],"Simply":[72],"applying":[73],"existing":[75],"method":[78],"tends":[79],"to":[80,115,165,178,195],"produce":[81,196],"discriminate":[84],"different":[86],"samples":[87],"rather":[88],"than":[89],"classes,":[91],"resulting":[92],"problem.":[96],"paper":[102],"proposes":[103],"an":[104],"spatial-temporal":[106,130],"Feature":[107],"Enrichment":[108],"Fidelity":[110],"Preservation":[111],"(U-FEFP)":[112],"framework":[114],"generate":[116,166],"rich":[117,167],"distributed":[118,168],"contain":[121],"all":[122],"information":[124,181],"of":[125],"sample.":[128],"A":[129],"feature":[131,153],"transformation":[132],"subnetwork":[133],"developed":[135],"using":[136],"channel-wise":[137],"topology":[138],"refinement":[139],"graph":[140,144],"convolutional":[141,145],"block":[142,149],"gated":[146],"recurrent":[147],"unit":[148],"basic":[152],"extraction":[154],"network.":[155],"The":[156,186],"Bootstrap":[158],"Your":[159],"Own":[160],"Latent-based":[161],"utilized":[164],"features,":[169],"pretext":[173],"task-based":[174],"employed":[177],"preserve":[179],"contained":[182],"skeleton.":[185],"two":[187],"ways":[190],"collaborated":[192],"U-FEFP":[194,219],"robust":[197],"discriminative":[199],"representations.":[200],"Experimental":[201],"results":[202],"on":[203],"four":[204],"widely":[205],"used":[206],"benchmarks,":[207],"namely":[208],"NTU-RGB+D-60,":[209],"PKU-MMD,":[210],"NTU-RGB+D-120":[211],"AAV-Human":[213],"dataset,":[214],"demonstrate":[215],"proposed":[218],"obtains":[220],"best":[222],"result":[223],"compared":[224],"with":[225],"state-of-the-art":[227],"methods.":[230]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2}],"updated_date":"2025-12-21T01:58:51.020947","created_date":"2025-10-10T00:00:00"}
