{"id":"https://openalex.org/W7163540050","doi":"https://doi.org/10.23919/date69613.2026.11539679","title":"Efficient Federated Learning with Low-Rank Updates under Homomorphic Encryption","display_name":"Efficient Federated Learning with Low-Rank Updates under Homomorphic Encryption","publication_year":2026,"publication_date":"2026-04-20","ids":{"openalex":"https://openalex.org/W7163540050","doi":"https://doi.org/10.23919/date69613.2026.11539679"},"language":null,"primary_location":{"id":"doi:10.23919/date69613.2026.11539679","is_oa":false,"landing_page_url":"https://doi.org/10.23919/date69613.2026.11539679","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 Design, Automation &amp;amp; Test in Europe Conference (DATE)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5133014021","display_name":"Mohamed Aboelenien Ahmed","orcid":null},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Mohamed Aboelenien Ahmed","raw_affiliation_strings":["Karlsruhe Institute of Technology (KIT),Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Karlsruhe Institute of Technology (KIT),Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5119343188","display_name":"Mohamed Alsharkawy","orcid":null},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Mohamed Alsharkawy","raw_affiliation_strings":["Karlsruhe Institute of Technology (KIT),Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Karlsruhe Institute of Technology (KIT),Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040426334","display_name":"Hassan Nassar","orcid":"https://orcid.org/0000-0003-1566-8997"},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Hassan Nassar","raw_affiliation_strings":["Karlsruhe Institute of Technology (KIT),Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Karlsruhe Institute of Technology (KIT),Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035265423","display_name":"Heba Khdr","orcid":"https://orcid.org/0000-0003-0245-2062"},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Heba Khdr","raw_affiliation_strings":["Karlsruhe Institute of Technology (KIT),Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Karlsruhe Institute of Technology (KIT),Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059893718","display_name":"Jeferson Gonz\u00e1lez-G\u00f3mez","orcid":"https://orcid.org/0000-0002-4200-2632"},"institutions":[{"id":"https://openalex.org/I145372079","display_name":"Instituto Tecnol\u00f3gico de Costa Rica","ror":"https://ror.org/04zhrfn38","country_code":"CR","type":"education","lineage":["https://openalex.org/I145372079"]}],"countries":["CR"],"is_corresponding":false,"raw_author_name":"Jeferson Gonzalez-Gomez","raw_affiliation_strings":["Costa Rica Institute of Technology (TEC),Costa Rica"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Costa Rica Institute of Technology (TEC),Costa Rica","institution_ids":["https://openalex.org/I145372079"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5137915962","display_name":"J\u00f6rg Henkel","orcid":null},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"J\u00f6rg Henkel","raw_affiliation_strings":["Karlsruhe Institute of Technology (KIT),Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Karlsruhe Institute of Technology (KIT),Germany","institution_ids":["https://openalex.org/I102335020"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.62722098,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"7"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.8306999802589417,"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":0.8306999802589417,"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/T10237","display_name":"Cryptography and Data Security","score":0.13120000064373016,"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/T11612","display_name":"Stochastic Gradient Optimization Techniques","score":0.010499999858438969,"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/homomorphic-encryption","display_name":"Homomorphic encryption","score":0.5570999979972839},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.45969998836517334},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.3582000136375427},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.30649998784065247},{"id":"https://openalex.org/keywords/confidentiality","display_name":"Confidentiality","score":0.29159998893737793}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7231000065803528},{"id":"https://openalex.org/C158338273","wikidata":"https://www.wikidata.org/wiki/Q2154943","display_name":"Homomorphic encryption","level":3,"score":0.5570999979972839},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.45969998836517334},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.3582000136375427},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.3547999858856201},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.30649998784065247},{"id":"https://openalex.org/C71745522","wikidata":"https://www.wikidata.org/wiki/Q2476929","display_name":"Confidentiality","level":2,"score":0.29159998893737793},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.2906999886035919},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.2526000142097473},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.25200000405311584}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.23919/date69613.2026.11539679","is_oa":false,"landing_page_url":"https://doi.org/10.23919/date69613.2026.11539679","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 Design, Automation &amp;amp; Test in Europe Conference (DATE)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W2132172731","https://openalex.org/W2194775991","https://openalex.org/W2768174108","https://openalex.org/W2963456518","https://openalex.org/W2964162474","https://openalex.org/W3014517104","https://openalex.org/W3109847748","https://openalex.org/W3140753276","https://openalex.org/W3200343674","https://openalex.org/W3200840849","https://openalex.org/W3203600060","https://openalex.org/W4206573848","https://openalex.org/W4285554319","https://openalex.org/W4287179788","https://openalex.org/W4295934879","https://openalex.org/W4312300115","https://openalex.org/W4317795078","https://openalex.org/W4376149513","https://openalex.org/W4385080612","https://openalex.org/W4386121344","https://openalex.org/W4386243254","https://openalex.org/W4393186025","https://openalex.org/W4401568364","https://openalex.org/W4402193421","https://openalex.org/W4402888905","https://openalex.org/W4404294065","https://openalex.org/W4404385876","https://openalex.org/W4404848908","https://openalex.org/W4405935436","https://openalex.org/W4406276512","https://openalex.org/W4406461265","https://openalex.org/W4409156730","https://openalex.org/W4412560665","https://openalex.org/W4415796333"],"related_works":[],"abstract_inverted_index":{"Federated":[0,132],"Learning":[1,133],"has":[2],"been":[3],"widely":[4],"adopted":[5],"for":[6,41,47],"its":[7],"ability":[8],"to":[9,128,141,152],"collaboratively":[10],"train":[11],"models":[12],"without":[13],"exposing":[14],"raw":[15],"data.":[16,29],"However,":[17],"the":[18,48,108,162],"server-side":[19,90],"aggregation":[20,91,125],"process":[21],"may":[22],"still":[23],"leak":[24],"sensitive":[25],"information":[26],"about":[27],"client":[28,121],"Homomorphic":[30],"Encryption":[31],"enables":[32],"privacy-preserving":[33],"aggregation,":[34],"but":[35],"it":[36],"introduces":[37],"substantial":[38],"communication":[39,87,122],"overhead":[40],"clients":[42,78],"and":[43,89,123],"high":[44],"computational":[45],"costs":[46,88],"server.":[49,109],"To":[50],"address":[51],"these":[52,136],"challenges,":[53],"we":[54],"propose":[55],"HEAL-FL,":[56],"a":[57,96,142],"federated":[58],"learning":[59],"framework":[60],"that":[61,101,118],"is":[62],"based":[63],"on":[64,104],"low-rank":[65,82],"shared":[66],"basis":[67,98],"vectors":[68],"across":[69,112],"clients.":[70],"Instead":[71],"of":[72,131,145,165],"transmitting":[73],"full":[74,157],"encrypted":[75,81],"model":[76,158],"updates,":[77],"send":[79],"only":[80],"coefficients,":[83],"thereby":[84],"reducing":[85],"both":[86],"overhead.":[92],"Furthermore,":[93],"HEAL-FL":[94,119],"incorporates":[95],"communication-efficient":[97],"update":[99],"scheme":[100],"relies":[102],"exclusively":[103],"homomorphic":[105,114,154],"addition":[106],"at":[107],"Our":[110],"evaluation":[111],"various":[113],"encryption":[115],"schemes":[116],"shows":[117],"reduces":[120],"server":[124],"costs,":[126],"leading":[127],"improved":[129],"efficiency":[130],"systems.":[134],"Notably,":[135],"savings":[137],"translate":[138],"into":[139],"up":[140],"significant":[143],"reduction":[144],"38.6%":[146],"in":[147],"total":[148],"training":[149],"time":[150],"compared":[151],"conventional":[153],"FedAvg":[155],"with":[156],"parameter":[159],"transmission,":[160],"demonstrating":[161],"practical":[163],"benefits":[164],"our":[166],"approach.":[167]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2026-06-05T00:00:00"}
