{"id":"https://openalex.org/W4378805138","doi":"https://doi.org/10.1109/tip.2023.3279991","title":"Magi-Net: Meta Negative Network for Early Activity Prediction","display_name":"Magi-Net: Meta Negative Network for Early Activity Prediction","publication_year":2023,"publication_date":"2023-01-01","ids":{"openalex":"https://openalex.org/W4378805138","doi":"https://doi.org/10.1109/tip.2023.3279991","pmid":"https://pubmed.ncbi.nlm.nih.gov/37256800"},"language":"en","primary_location":{"id":"doi:10.1109/tip.2023.3279991","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2023.3279991","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/A5100631558","display_name":"Wenqian Wang","orcid":"https://orcid.org/0000-0003-0285-9786"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Wenqian Wang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Show Laboratory, National University of Singapore, Cluny Road, Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Show Laboratory, National University of Singapore, Cluny Road, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070332088","display_name":"Faliang Chang","orcid":"https://orcid.org/0000-0003-1276-2267"},"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":"Faliang Chang","raw_affiliation_strings":["School of Control Science and Engineering, Shandong University, Jinan, China"],"affiliations":[{"raw_affiliation_string":"School of Control Science and Engineering, Shandong University, Jinan, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100664138","display_name":"Junhao Zhang","orcid":"https://orcid.org/0000-0002-2382-6097"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Junhao Zhang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Show Laboratory, National University of Singapore, Cluny Road, Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Show Laboratory, National University of Singapore, Cluny Road, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100716371","display_name":"Rui Yan","orcid":"https://orcid.org/0000-0002-0694-9458"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Rui Yan","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Show Laboratory, National University of Singapore, Cluny Road, Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Show Laboratory, National University of Singapore, Cluny Road, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065058741","display_name":"Chunsheng Liu","orcid":"https://orcid.org/0000-0001-5516-2486"},"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":"Chunsheng Liu","raw_affiliation_strings":["School of Control Science and Engineering, Shandong University, Jinan, China"],"affiliations":[{"raw_affiliation_string":"School of Control Science and Engineering, Shandong University, Jinan, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100449066","display_name":"Bin Wang","orcid":"https://orcid.org/0000-0001-5265-1030"},"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":"Bin Wang","raw_affiliation_strings":["School of Control Science and Engineering, Shandong University, Jinan, China"],"affiliations":[{"raw_affiliation_string":"School of Control Science and Engineering, Shandong University, Jinan, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5068937750","display_name":"Mike Zheng Shou","orcid":"https://orcid.org/0000-0002-7681-2166"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Mike Zheng Shou","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Show Laboratory, National University of Singapore, Cluny Road, Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Show Laboratory, National University of Singapore, Cluny Road, Singapore","institution_ids":["https://openalex.org/I165932596"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5100631558"],"corresponding_institution_ids":["https://openalex.org/I165932596"],"apc_list":null,"apc_paid":null,"fwci":1.6052,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.85492915,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"32","issue":null,"first_page":"3254","last_page":"3265"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","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":0.9955000281333923,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/discriminative-model","display_name":"Discriminative model","score":0.8538475036621094},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6731677651405334},{"id":"https://openalex.org/keywords/net","display_name":"Net (polyhedron)","score":0.6533392667770386},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6481828093528748},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.48902830481529236},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.4616125822067261},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.4607698619365692},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.45569413900375366},{"id":"https://openalex.org/keywords/sample","display_name":"Sample (material)","score":0.4448181688785553},{"id":"https://openalex.org/keywords/action","display_name":"Action (physics)","score":0.41850683093070984},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.41534480452537537},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19628271460533142}],"concepts":[{"id":"https://openalex.org/C97931131","wikidata":"https://www.wikidata.org/wiki/Q5282087","display_name":"Discriminative model","level":2,"score":0.8538475036621094},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6731677651405334},{"id":"https://openalex.org/C14166107","wikidata":"https://www.wikidata.org/wiki/Q253829","display_name":"Net (polyhedron)","level":2,"score":0.6533392667770386},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6481828093528748},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.48902830481529236},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.4616125822067261},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.4607698619365692},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.45569413900375366},{"id":"https://openalex.org/C198531522","wikidata":"https://www.wikidata.org/wiki/Q485146","display_name":"Sample (material)","level":2,"score":0.4448181688785553},{"id":"https://openalex.org/C2780791683","wikidata":"https://www.wikidata.org/wiki/Q846785","display_name":"Action (physics)","level":2,"score":0.41850683093070984},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.41534480452537537},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19628271460533142},{"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tip.2023.3279991","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2023.3279991","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:37256800","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/37256800","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":[{"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10","score":0.7099999785423279}],"awards":[{"id":"https://openalex.org/G2984507218","display_name":null,"funder_award_id":"2020CXGC010207","funder_id":"https://openalex.org/F4320333596","funder_display_name":"Key Technology Research and Development Program of Shandong"},{"id":"https://openalex.org/G3968842904","display_name":null,"funder_award_id":"NRF-NRFF13-2021-0008","funder_id":"https://openalex.org/F4320320709","funder_display_name":"National Research Foundation Singapore"},{"id":"https://openalex.org/G5535474515","display_name":null,"funder_award_id":"62176138","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6967522541","display_name":null,"funder_award_id":"2019JZZY010130","funder_id":"https://openalex.org/F4320333596","funder_display_name":"Key Technology Research and Development Program of Shandong"},{"id":"https://openalex.org/G8239702273","display_name":null,"funder_award_id":"62176136","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8636925473","display_name":null,"funder_award_id":"U22A2058","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8884128638","display_name":null,"funder_award_id":"202106220132","funder_id":"https://openalex.org/F4320322725","funder_display_name":"China Scholarship Council"}],"funders":[{"id":"https://openalex.org/F4320320709","display_name":"National Research Foundation Singapore","ror":"https://ror.org/03cpyc314"},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322725","display_name":"China Scholarship Council","ror":"https://ror.org/04atp4p48"},{"id":"https://openalex.org/F4320333596","display_name":"Key Technology Research and Development Program of Shandong","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":75,"referenced_works":["https://openalex.org/W1483019628","https://openalex.org/W2003708924","https://openalex.org/W2038485832","https://openalex.org/W2093655440","https://openalex.org/W2096733369","https://openalex.org/W2106053110","https://openalex.org/W2138621090","https://openalex.org/W2147615062","https://openalex.org/W2157364932","https://openalex.org/W2187089797","https://openalex.org/W2472970127","https://openalex.org/W2588413703","https://openalex.org/W2604321021","https://openalex.org/W2604763608","https://openalex.org/W2605300166","https://openalex.org/W2605973302","https://openalex.org/W2623040213","https://openalex.org/W2739179646","https://openalex.org/W2739251211","https://openalex.org/W2793547936","https://openalex.org/W2798795235","https://openalex.org/W2885940446","https://openalex.org/W2914177721","https://openalex.org/W2940457086","https://openalex.org/W2948058585","https://openalex.org/W2951104886","https://openalex.org/W2954540134","https://openalex.org/W2960406243","https://openalex.org/W2963076818","https://openalex.org/W2963610939","https://openalex.org/W2963692464","https://openalex.org/W2964134613","https://openalex.org/W2964840771","https://openalex.org/W2971486392","https://openalex.org/W2981952041","https://openalex.org/W3005680577","https://openalex.org/W3006892894","https://openalex.org/W3034781633","https://openalex.org/W3034999503","https://openalex.org/W3035067471","https://openalex.org/W3035225512","https://openalex.org/W3092754310","https://openalex.org/W3099128265","https://openalex.org/W3106350522","https://openalex.org/W3106884574","https://openalex.org/W3109306201","https://openalex.org/W3123784868","https://openalex.org/W3130464934","https://openalex.org/W3133092047","https://openalex.org/W3138697035","https://openalex.org/W3173655578","https://openalex.org/W3174053790","https://openalex.org/W3174759211","https://openalex.org/W3175928291","https://openalex.org/W3184612208","https://openalex.org/W3195968859","https://openalex.org/W3203113175","https://openalex.org/W3203634062","https://openalex.org/W3204239658","https://openalex.org/W4205848079","https://openalex.org/W4206753629","https://openalex.org/W4287812705","https://openalex.org/W4294646197","https://openalex.org/W4312256886","https://openalex.org/W4312449092","https://openalex.org/W4313005250","https://openalex.org/W4313023218","https://openalex.org/W4313192742","https://openalex.org/W6675751002","https://openalex.org/W6736057607","https://openalex.org/W6750254146","https://openalex.org/W6752515464","https://openalex.org/W6765696844","https://openalex.org/W6774314701","https://openalex.org/W6776700526"],"related_works":["https://openalex.org/W2965546495","https://openalex.org/W4389116644","https://openalex.org/W2153315159","https://openalex.org/W3103844505","https://openalex.org/W259157601","https://openalex.org/W4205463238","https://openalex.org/W2761785940","https://openalex.org/W2110523656","https://openalex.org/W1482209366","https://openalex.org/W2521627374"],"abstract_inverted_index":{"Early":[0],"activity":[1,159],"prediction/recognition":[2],"aims":[3],"to":[4,14,68,128,138],"recognize":[5],"action":[6,16],"categories":[7],"before":[8],"they":[9],"are":[10,82,98,153],"fully":[11],"conveyed.":[12],"Compared":[13],"full-length":[15],"sequences,":[17],"partial":[18],"video":[19],"sequences":[20],"only":[21,39],"provide":[22],"insufficient":[23],"discrimination":[24],"information,":[25],"which":[26,108],"makes":[27],"predicting":[28],"the":[29,70,79,95,110,114,130,136,141,162,165,168],"class":[30],"labels":[31],"for":[32],"some":[33],"similar":[34],"activities":[35],"challenging,":[36],"especially":[37],"when":[38],"very":[40],"few":[41],"frames":[42],"can":[43],"be":[44],"observed.":[45],"To":[46],"address":[47],"this":[48,51],"challenge,":[49],"in":[50],"paper,":[52],"we":[53],"propose":[54],"a":[55,64,101,119,147],"novel":[56],"meta":[57,120,148],"negative":[58,96,103,121,144],"network,":[59],"namely,":[60],"Magi-Net,":[61],"that":[62],"utilizes":[63],"contrastive":[65],"learning":[66,149],"scheme":[67],"alleviate":[69],"insufficiency":[71],"of":[72,132,167],"discriminative":[73],"information.":[74],"In":[75],"our":[76],"Magi-Net":[77,133,170],"model,":[78],"positive":[80],"samples":[81,97,112,145],"generated":[83],"by":[84,134],"augmenting":[85],"an":[86],"input":[87],"anchor":[88],"conditioned":[89],"on":[90,155],"all":[91],"observation":[92],"ratios,":[93],"while":[94],"selected":[99],"from":[100,140],"trainable":[102],"look-up":[104],"memory":[105],"(LUM)":[106],"table,":[107],"stores":[109],"training":[111,131],"and":[113,161],"corresponding":[115],"misleading":[116],"categories.":[117],"Furthermore,":[118],"sample":[122],"optimization":[123],"strategy":[124],"(MetaSOS)":[125],"is":[126],"proposed":[127,169],"boost":[129],"encouraging":[135],"model":[137],"learn":[139],"most":[142],"informative":[143],"via":[146],"scheme.":[150],"Extensive":[151],"experiments":[152],"conducted":[154],"several":[156],"public":[157],"skeleton-based":[158],"datasets,":[160],"results":[163],"show":[164],"efficacy":[166],"model.":[171]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}