{"id":"https://openalex.org/W4400525470","doi":"https://doi.org/10.1109/access.2024.3426280","title":"Consensus and Risk Aversion Learning in Ensemble of Multiple Experts for Long-Tailed Classification","display_name":"Consensus and Risk Aversion Learning in Ensemble of Multiple Experts for Long-Tailed Classification","publication_year":2024,"publication_date":"2024-01-01","ids":{"openalex":"https://openalex.org/W4400525470","doi":"https://doi.org/10.1109/access.2024.3426280"},"language":"en","primary_location":{"id":"doi:10.1109/access.2024.3426280","is_oa":true,"landing_page_url":"http://dx.doi.org/10.1109/access.2024.3426280","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"http://dx.doi.org/10.1109/access.2024.3426280","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101052808","display_name":"Taegil Ha","orcid":"https://orcid.org/0000-0002-4210-5236"},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Taegil Ha","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Automation and Systems Research Institute (ASRI), Seoul National University, Seoul, South Korea"],"raw_orcid":"https://orcid.org/0000-0002-4210-5236","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Automation and Systems Research Institute (ASRI), Seoul National University, Seoul, South Korea","institution_ids":["https://openalex.org/I139264467"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088891890","display_name":"Jin Young Choi","orcid":"https://orcid.org/0000-0003-3891-5815"},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jin Young Choi","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Automation and Systems Research Institute (ASRI), Seoul National University, Seoul, South Korea"],"raw_orcid":"https://orcid.org/0000-0003-3891-5815","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Automation and Systems Research Institute (ASRI), Seoul National University, Seoul, South Korea","institution_ids":["https://openalex.org/I139264467"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I139264467"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.10863364,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"12","issue":null,"first_page":"97883","last_page":"97892"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9932000041007996,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T12879","display_name":"Distributed Sensor Networks and Detection Algorithms","score":0.9927999973297119,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/divergence","display_name":"Divergence (linguistics)","score":0.7266556024551392},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7193959355354309},{"id":"https://openalex.org/keywords/stability","display_name":"Stability (learning theory)","score":0.6048485040664673},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.5444650650024414},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.542367160320282},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5387974381446838},{"id":"https://openalex.org/keywords/ensemble-learning","display_name":"Ensemble learning","score":0.5247787833213806},{"id":"https://openalex.org/keywords/diversity","display_name":"Diversity (politics)","score":0.5152666568756104},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.4145856499671936},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.18050876259803772}],"concepts":[{"id":"https://openalex.org/C207390915","wikidata":"https://www.wikidata.org/wiki/Q1230525","display_name":"Divergence (linguistics)","level":2,"score":0.7266556024551392},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7193959355354309},{"id":"https://openalex.org/C112972136","wikidata":"https://www.wikidata.org/wiki/Q7595718","display_name":"Stability (learning theory)","level":2,"score":0.6048485040664673},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.5444650650024414},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.542367160320282},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5387974381446838},{"id":"https://openalex.org/C45942800","wikidata":"https://www.wikidata.org/wiki/Q245652","display_name":"Ensemble learning","level":2,"score":0.5247787833213806},{"id":"https://openalex.org/C2781316041","wikidata":"https://www.wikidata.org/wiki/Q1230584","display_name":"Diversity (politics)","level":2,"score":0.5152666568756104},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.4145856499671936},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.18050876259803772},{"id":"https://openalex.org/C19165224","wikidata":"https://www.wikidata.org/wiki/Q23404","display_name":"Anthropology","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/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/access.2024.3426280","is_oa":true,"landing_page_url":"http://dx.doi.org/10.1109/access.2024.3426280","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:05fd86bd60ce47c7bca59e4a09d5c1ed","is_oa":true,"landing_page_url":"https://doaj.org/article/05fd86bd60ce47c7bca59e4a09d5c1ed","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":"IEEE Access, Vol 12, Pp 97883-97892 (2024)","raw_type":"article"},{"id":"pmh:oai:s-space.snu.ac.kr:10371/209003","is_oa":false,"landing_page_url":"https://hdl.handle.net/10371/209003","pdf_url":null,"source":{"id":"https://openalex.org/S4306401345","display_name":"Seoul National University Open Repository (Seoul National University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I139264467","host_organization_name":"Seoul National University","host_organization_lineage":["https://openalex.org/I139264467"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":{"id":"doi:10.1109/access.2024.3426280","is_oa":true,"landing_page_url":"http://dx.doi.org/10.1109/access.2024.3426280","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":76,"referenced_works":["https://openalex.org/W576478772","https://openalex.org/W656896077","https://openalex.org/W1589847424","https://openalex.org/W1834627138","https://openalex.org/W1965555277","https://openalex.org/W1980287119","https://openalex.org/W1991709859","https://openalex.org/W1992324270","https://openalex.org/W2023639956","https://openalex.org/W2026653933","https://openalex.org/W2034489173","https://openalex.org/W2104167780","https://openalex.org/W2132481658","https://openalex.org/W2146950091","https://openalex.org/W2148143831","https://openalex.org/W2194775991","https://openalex.org/W2549139847","https://openalex.org/W2620998106","https://openalex.org/W2765407302","https://openalex.org/W2797977484","https://openalex.org/W2798405286","https://openalex.org/W2798709976","https://openalex.org/W2899937451","https://openalex.org/W2900887080","https://openalex.org/W2949736877","https://openalex.org/W2962895364","https://openalex.org/W2962933664","https://openalex.org/W2963351448","https://openalex.org/W2963691377","https://openalex.org/W2968945589","https://openalex.org/W3034369739","https://openalex.org/W3034601242","https://openalex.org/W3034711780","https://openalex.org/W3035682985","https://openalex.org/W3096121526","https://openalex.org/W3100439690","https://openalex.org/W3118608800","https://openalex.org/W3122855191","https://openalex.org/W3125815192","https://openalex.org/W3126272270","https://openalex.org/W3140662957","https://openalex.org/W3157235689","https://openalex.org/W3158299003","https://openalex.org/W3177200443","https://openalex.org/W3202087803","https://openalex.org/W3202232857","https://openalex.org/W3215720729","https://openalex.org/W4200434506","https://openalex.org/W4214718285","https://openalex.org/W4254038944","https://openalex.org/W4293519074","https://openalex.org/W4312244159","https://openalex.org/W4312702685","https://openalex.org/W4313066313","https://openalex.org/W4313162605","https://openalex.org/W4319300275","https://openalex.org/W4366352743","https://openalex.org/W4379208006","https://openalex.org/W4386065716","https://openalex.org/W4386065770","https://openalex.org/W4386065868","https://openalex.org/W4386066322","https://openalex.org/W4386075947","https://openalex.org/W4386076287","https://openalex.org/W4386076395","https://openalex.org/W4386083102","https://openalex.org/W4390873427","https://openalex.org/W4390873567","https://openalex.org/W4390873655","https://openalex.org/W4390874449","https://openalex.org/W6750824881","https://openalex.org/W6764733053","https://openalex.org/W6780793664","https://openalex.org/W6784097300","https://openalex.org/W6787972765","https://openalex.org/W6845582434"],"related_works":["https://openalex.org/W3208095355","https://openalex.org/W2177370417","https://openalex.org/W2052507016","https://openalex.org/W2180461068","https://openalex.org/W2051816080","https://openalex.org/W1975289146","https://openalex.org/W4310813911","https://openalex.org/W2105887828","https://openalex.org/W2156730189","https://openalex.org/W2122599759"],"abstract_inverted_index":{"Recent":[0],"expert":[1,46,67],"ensemble":[2],"methods":[3,134],"for":[4,45,143],"long-tailed":[5],"recognition":[6],"encourage":[7],"diversity":[8,21,70],"by":[9,52,157],"maximizing":[10],"KL":[11,23],"divergence":[12],"between":[13],"the":[14,19,50,54,61,72,98,111,118,126,132,149,159],"predictions":[15,32,55],"of":[16,33,56,65,97,128,146],"experts.":[17,34,147],"However,":[18],"excessive":[20,69],"using":[22],"divergence,":[24],"which":[25,48,106],"has":[26],"no":[27],"upper":[28],"bound,":[29],"induces":[30],"inaccurate":[31],"To":[35,76],"address":[36],"this":[37,78,116],"issue,":[38],"we":[39,81],"propose":[40,82],"a":[41,83,103],"new":[42,84],"learning":[43,79],"method":[44,100,120,139,151],"ensemble,":[47],"obtains":[49],"consensus":[51,73],"aggregating":[53],"experts":[57,129],"(Consensus)":[58],"and":[59,94],"maximizes":[60],"expected":[62],"prediction":[63],"accuracy":[64],"each":[66],"without":[68],"from":[71,87],"(Risk":[74],"Aversion).":[75],"implement":[77],"scheme,":[80],"loss":[85],"derived":[86],"R\u00e9nyi":[88],"Divergence.":[89],"We":[90],"provide":[91],"both":[92],"empirical":[93],"theoretical":[95],"analysis":[96],"proposed":[99,119,138,150],"along":[101],"with":[102],"stability":[104],"guarantee,":[105],"is":[107],"not":[108],"guaranteed":[109],"at":[110],"existing":[112,133],"methods.":[113],"Thanks":[114],"to":[115,122],"stability,":[117],"continues":[121],"improve":[123],"performance":[124,142],"as":[125],"number":[127,145],"increases,":[130],"while":[131],"do":[135],"not.":[136],"The":[137],"achieves":[140],"state-of-the-art":[141],"any":[144],"Furthermore,":[148],"operates":[152],"robustly":[153],"even":[154],"when":[155],"evaluated":[156],"varying":[158],"imbalance":[160],"factor.":[161]},"counts_by_year":[],"updated_date":"2025-12-26T23:08:49.675405","created_date":"2025-10-10T00:00:00"}