{"id":"https://openalex.org/W7152638246","doi":"https://doi.org/10.1145/3774904.3792994","title":"Dynamic Min-Max Multi-Dimensional Reinforcement Backdoor Attacks and Orchestrated Closed-Loop Defense in Fairness-Aware Web Federated Finance","display_name":"Dynamic Min-Max Multi-Dimensional Reinforcement Backdoor Attacks and Orchestrated Closed-Loop Defense in Fairness-Aware Web Federated Finance","publication_year":2026,"publication_date":"2026-04-09","ids":{"openalex":"https://openalex.org/W7152638246","doi":"https://doi.org/10.1145/3774904.3792994"},"language":null,"primary_location":{"id":"doi:10.1145/3774904.3792994","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3774904.3792994","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM Web Conference 2026","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1145/3774904.3792994","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102659277","display_name":"Ruixiao Zhu","orcid":null},"institutions":[{"id":"https://openalex.org/I116953780","display_name":"Tongji University","ror":"https://ror.org/03rc6as71","country_code":"CN","type":"education","lineage":["https://openalex.org/I116953780"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruixiao Zhu","raw_affiliation_strings":["School of Computer Science and Technology, Tongji University, Shanghai, China"],"raw_orcid":"https://orcid.org/0009-0002-0038-289X","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101790399","display_name":"Kun Zhu","orcid":"https://orcid.org/0000-0002-5773-5089"},"institutions":[{"id":"https://openalex.org/I116953780","display_name":"Tongji University","ror":"https://ror.org/03rc6as71","country_code":"CN","type":"education","lineage":["https://openalex.org/I116953780"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kun Zhu","raw_affiliation_strings":["School of Computer Science and Technology, Tongji University, Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0002-5773-5089","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054882406","display_name":"N Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I181326427","display_name":"Donghua University","ror":"https://ror.org/035psfh38","country_code":"CN","type":"education","lineage":["https://openalex.org/I181326427"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Nana Zhang","raw_affiliation_strings":["School of Computer Science and Technology, Donghua University, Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0002-9843-5269","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Donghua University, Shanghai, China","institution_ids":["https://openalex.org/I181326427"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133288085","display_name":"Qi Zhang","orcid":"https://orcid.org/0000-0002-1037-1361"},"institutions":[{"id":"https://openalex.org/I116953780","display_name":"Tongji University","ror":"https://ror.org/03rc6as71","country_code":"CN","type":"education","lineage":["https://openalex.org/I116953780"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qi Zhang","raw_affiliation_strings":["School of Computer Science and Technology, Tongji University, Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0002-1037-1361","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066099338","display_name":"Changjun Jiang","orcid":"https://orcid.org/0000-0003-0637-9317"},"institutions":[{"id":"https://openalex.org/I116953780","display_name":"Tongji University","ror":"https://ror.org/03rc6as71","country_code":"CN","type":"education","lineage":["https://openalex.org/I116953780"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Changjun Jiang","raw_affiliation_strings":["School of Computer Science and Technology, Tongji University, Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0003-0637-9317","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"9079","last_page":"9089"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11424","display_name":"Security and Verification in Computing","score":0.35530000925064087,"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/T11424","display_name":"Security and Verification in Computing","score":0.35530000925064087,"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/T10270","display_name":"Blockchain Technology Applications and Security","score":0.16910000145435333,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10927","display_name":"Access Control and Trust","score":0.14239999651908875,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/backdoor","display_name":"Backdoor","score":0.8841000199317932},{"id":"https://openalex.org/keywords/reinforcement-learning","display_name":"Reinforcement learning","score":0.31839999556541443},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.3127000033855438},{"id":"https://openalex.org/keywords/web-server","display_name":"Web server","score":0.28929999470710754},{"id":"https://openalex.org/keywords/reinforcement","display_name":"Reinforcement","score":0.2815000116825104},{"id":"https://openalex.org/keywords/safer","display_name":"SAFER","score":0.27239999175071716}],"concepts":[{"id":"https://openalex.org/C2781045450","wikidata":"https://www.wikidata.org/wiki/Q254569","display_name":"Backdoor","level":2,"score":0.8841000199317932},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.6251999735832214},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5964999794960022},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.3474000096321106},{"id":"https://openalex.org/C97541855","wikidata":"https://www.wikidata.org/wiki/Q830687","display_name":"Reinforcement learning","level":2,"score":0.31839999556541443},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.3127000033855438},{"id":"https://openalex.org/C11392498","wikidata":"https://www.wikidata.org/wiki/Q11288","display_name":"Web server","level":3,"score":0.28929999470710754},{"id":"https://openalex.org/C67203356","wikidata":"https://www.wikidata.org/wiki/Q1321905","display_name":"Reinforcement","level":2,"score":0.2815000116825104},{"id":"https://openalex.org/C2776654903","wikidata":"https://www.wikidata.org/wiki/Q2601463","display_name":"SAFER","level":2,"score":0.27239999175071716},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.2703999876976013},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.26660001277923584},{"id":"https://openalex.org/C108759981","wikidata":"https://www.wikidata.org/wiki/Q788590","display_name":"Authorization","level":2,"score":0.26260000467300415}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3774904.3792994","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3774904.3792994","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM Web Conference 2026","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3774904.3792994","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3774904.3792994","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM Web Conference 2026","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W2949734902","https://openalex.org/W3025519219","https://openalex.org/W3087391814","https://openalex.org/W3204548896","https://openalex.org/W4382237486","https://openalex.org/W4382469817","https://openalex.org/W4386211320","https://openalex.org/W4387145962","https://openalex.org/W4391341143","https://openalex.org/W4393156872","https://openalex.org/W4393161237","https://openalex.org/W4402753898","https://openalex.org/W4409347672","https://openalex.org/W4409363672","https://openalex.org/W4409363853","https://openalex.org/W4409364398","https://openalex.org/W4410013469","https://openalex.org/W4411430389","https://openalex.org/W4413157206","https://openalex.org/W4414360327","https://openalex.org/W7117753272"],"related_works":[],"abstract_inverted_index":{"In":[0],"the":[1,52,84,208],"rapidly":[2],"evolving":[3],"web-based":[4,75],"financial":[5,26,60,204],"ecosystem":[6],"where":[7,118,141,170],"digital":[8],"banking":[9],"services":[10],"become":[11],"critical":[12],"infrastructure":[13],"for":[14,46],"underserved":[15],"communities,":[16],"credit":[17],"card":[18],"fraud":[19,78,109,205],"disproportionately":[20],"affects":[21],"vulnerable":[22,47],"populations":[23],"relying":[24],"on":[25,202],"platforms.":[27],"However,":[28],"previous":[29],"studies":[30],"overlook":[31],"extreme":[32],"data":[33,101],"scarcity":[34,102],"conditions,":[35],"particularly":[36],"at":[37,63],"small-to-medium":[38],"web":[39,65,136],"banks":[40],"that":[41,156],"serve":[42],"as":[43,190],"crucial":[44],"gateways":[45],"communities.":[48],"This":[49],"paper":[50],"addresses":[51],"fundamental":[53],"challenge":[54],"of":[55,100,210],"building":[56],"inclusive":[57],"and":[58,89,103,162,213],"secure":[59],"systems":[61,111],"operable":[62],"true":[64],"scale.":[66],"To":[67],"overcome":[68],"this":[69],"deficiency,":[70],"we":[71],"propose":[72,132],"a":[73,133,166],"novel":[74,134],"fairness-aware":[76],"federated":[77,108],"detection":[79,96,110],"model,":[80],"CLARF,":[81],"which":[82],"utilizes":[83],"designed":[85],"privacy-enhanced":[86],"representation":[87],"fusion":[88],"fraud-aware":[90],"contrastive":[91],"learning":[92,147],"modules":[93],"to":[94,115,152,178,192],"enhance":[95],"performance":[97],"under":[98],"conditions":[99],"label":[104],"imbalance.":[105],"Furthermore,":[106],"current":[107],"critically":[112],"neglect":[113],"vulnerability":[114],"backdoor":[116],"attacks,":[117],"malicious":[119],"actors":[120],"can":[121],"implant":[122],"hidden":[123],"triggers":[124,155],"during":[125,198],"model":[126,212],"aggregation,":[127],"compromising":[128],"system":[129],"integrity.":[130],"We":[131],"dynamic":[135],"Min-Max":[137,214],"adversarial":[138,215],"game":[139,216],"framework":[140,169],"attackers":[142],"employ":[143],"hybrid":[144],"multi-stage":[145],"reinforcement":[146],"with":[148,219],"multi-dimensional":[149],"reward":[150],"mechanisms":[151],"dynamically":[153],"evolve":[154],"achieve":[157],"excellent":[158],"tradeoff":[159],"between":[160],"stealthiness":[161],"effectiveness.":[163],"Defender":[164],"adapts":[165],"closed-loop":[167],"Selection-Evaluation-Suppression":[168],"high-reliability":[171],"clients":[172],"are":[173,188],"selected":[174],"via":[175],"Fisher":[176],"information":[177],"carry":[179],"out":[180],"reverse":[181],"trigger":[182],"engineering.":[183],"Then":[184],"clients'":[185],"confidence":[186],"scores":[187],"calculated":[189],"weights":[191],"minimize":[193],"Attack":[194],"Success":[195],"Rate":[196],"(ASR)":[197],"aggregation.":[199],"Extensive":[200],"experiments":[201],"six":[203],"datasets":[206],"demonstrate":[207],"superiority":[209],"CLARF":[211],"paradigm":[217],"compared":[218],"multiple":[220],"SOTA":[221],"models.":[222]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2026-04-10T00:00:00"}