{"id":"https://openalex.org/W3134537896","doi":"https://doi.org/10.1145/3437120.3437282","title":"Online federated learning with imbalanced class distribution","display_name":"Online federated learning with imbalanced class distribution","publication_year":2020,"publication_date":"2020-11-20","ids":{"openalex":"https://openalex.org/W3134537896","doi":"https://doi.org/10.1145/3437120.3437282","mag":"3134537896"},"language":"en","primary_location":{"id":"doi:10.1145/3437120.3437282","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3437120.3437282","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"24th Pan-Hellenic Conference on Informatics","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://zenodo.org/record/4728108","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5090068048","display_name":"Konstantinos Giorgas","orcid":null},"institutions":[{"id":"https://openalex.org/I73142707","display_name":"Athens University of Economics and Business","ror":"https://ror.org/03s262162","country_code":"GR","type":"education","lineage":["https://openalex.org/I73142707"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"Konstantinos Giorgas","raw_affiliation_strings":["Athens University of Economics and Business, Greece"],"affiliations":[{"raw_affiliation_string":"Athens University of Economics and Business, Greece","institution_ids":["https://openalex.org/I73142707"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056484904","display_name":"Iraklis Varlamis","orcid":"https://orcid.org/0000-0002-0876-8167"},"institutions":[{"id":"https://openalex.org/I32762134","display_name":"Harokopio University of Athens","ror":"https://ror.org/02k5gp281","country_code":"GR","type":"education","lineage":["https://openalex.org/I32762134"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Iraklis Varlamis","raw_affiliation_strings":["Harokopio University of Athens, Greece"],"affiliations":[{"raw_affiliation_string":"Harokopio University of Athens, Greece","institution_ids":["https://openalex.org/I32762134"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5090068048"],"corresponding_institution_ids":["https://openalex.org/I73142707"],"apc_list":null,"apc_paid":null,"fwci":0.1359,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.59821784,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"91","last_page":"95"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":1.0,"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/T11704","display_name":"Mobile Crowdsensing and Crowdsourcing","score":0.9822999835014343,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"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/T11598","display_name":"Internet Traffic Analysis and Secure E-voting","score":0.9739000201225281,"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/computer-science","display_name":"Computer science","score":0.8377089500427246},{"id":"https://openalex.org/keywords/enhanced-data-rates-for-gsm-evolution","display_name":"Enhanced Data Rates for GSM Evolution","score":0.7176552414894104},{"id":"https://openalex.org/keywords/federated-learning","display_name":"Federated learning","score":0.6689547896385193},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.6560318470001221},{"id":"https://openalex.org/keywords/online-learning","display_name":"Online learning","score":0.57295823097229},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.5688233375549316},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.5248594284057617},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4757751524448395},{"id":"https://openalex.org/keywords/edge-device","display_name":"Edge device","score":0.44364750385284424},{"id":"https://openalex.org/keywords/edge-computing","display_name":"Edge computing","score":0.43740010261535645},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.1915687620639801}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8377089500427246},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.7176552414894104},{"id":"https://openalex.org/C2992525071","wikidata":"https://www.wikidata.org/wiki/Q50818671","display_name":"Federated learning","level":2,"score":0.6689547896385193},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.6560318470001221},{"id":"https://openalex.org/C2986087404","wikidata":"https://www.wikidata.org/wiki/Q15946010","display_name":"Online learning","level":2,"score":0.57295823097229},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.5688233375549316},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.5248594284057617},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4757751524448395},{"id":"https://openalex.org/C138236772","wikidata":"https://www.wikidata.org/wiki/Q25098575","display_name":"Edge device","level":3,"score":0.44364750385284424},{"id":"https://openalex.org/C2778456923","wikidata":"https://www.wikidata.org/wiki/Q5337692","display_name":"Edge computing","level":3,"score":0.43740010261535645},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.1915687620639801},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3437120.3437282","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3437120.3437282","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"24th Pan-Hellenic Conference on Informatics","raw_type":"proceedings-article"},{"id":"pmh:oai:zenodo.org:4728108","is_oa":true,"landing_page_url":"https://zenodo.org/record/4728108","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferencePaper"}],"best_oa_location":{"id":"pmh:oai:zenodo.org:4728108","is_oa":true,"landing_page_url":"https://zenodo.org/record/4728108","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferencePaper"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4295812813","display_name":null,"funder_award_id":"871385","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G4956428346","display_name":null,"funder_award_id":"Horizon 2020 research and innovatio","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G5036817778","display_name":null,"funder_award_id":"European Union's Horizon 2020 research and innov","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G6681187973","display_name":null,"funder_award_id":"871385","funder_id":"https://openalex.org/F4320332999","funder_display_name":"Horizon 2020 Framework Programme"},{"id":"https://openalex.org/G8318064016","display_name":null,"funder_award_id":"Horizon","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G8633428685","display_name":null,"funder_award_id":"European Union's Horizon 2020 research and innovat","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"}],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320332999","display_name":"Horizon 2020 Framework Programme","ror":"https://ror.org/00k4n6c32"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2132948751","https://openalex.org/W2800017313","https://openalex.org/W2912213068","https://openalex.org/W2913570153","https://openalex.org/W2970606380","https://openalex.org/W2995191368","https://openalex.org/W3015636663","https://openalex.org/W4286825659"],"related_works":["https://openalex.org/W4324372666","https://openalex.org/W4225706866","https://openalex.org/W2914646191","https://openalex.org/W4322761281","https://openalex.org/W4238233472","https://openalex.org/W4313339048","https://openalex.org/W3111395152","https://openalex.org/W4313526662","https://openalex.org/W4386004629","https://openalex.org/W2942586735"],"abstract_inverted_index":{"The":[0,24],"federated":[1,28,40,82,110],"learning":[2,29,41,83,111,128],"paradigm":[3],"can":[4,30],"be":[5,31],"a":[6,44,115],"viable":[7],"solution":[8],"for":[9,14],"handling":[10],"huge":[11],"datasets,":[12],"and":[13,51,96,113],"taking":[15],"advantage":[16],"of":[17,26,39,89,104,107,124],"powerful":[18],"processing":[19],"nodes":[20,50,61],"on":[21,47],"the":[22,37,48,53,80,94,97,102,108,119,125],"edge.":[23],"process":[25,112],"online":[27,81,109],"employed":[32],"in":[33,85],"order":[34],"to":[35,62],"maximise":[36],"potential":[38],"by":[42],"re-training":[43],"shared":[45],"model":[46],"edge":[49,60,98],"merging":[52],"updated":[54],"models":[55],"centrally.":[56],"This":[57],"approach":[58,84],"allows":[59],"exchange":[63],"knowledge":[64],"without":[65],"exchanging":[66],"their":[67,73],"own":[68],"training":[69],"data,":[70],"thus":[71],"preserving":[72],"privacy.":[74],"In":[75],"this":[76],"work,":[77],"we":[78],"examine":[79,101],"an":[86],"extreme":[87],"case":[88],"imbalanced":[90],"class":[91],"distribution":[92],"between":[93],"central":[95],"nodes.":[99],"We":[100],"effects":[103],"different":[105],"parameters":[106],"propose":[114],"technique":[116],"that":[117,123],"boosts":[118],"classification":[120],"performance":[121],"above":[122],"baseline":[126],"centralised":[127],"approach.":[129]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-04-13T07:58:08.660418","created_date":"2025-10-10T00:00:00"}