{"id":"https://openalex.org/W7134118490","doi":"https://doi.org/10.1007/s44443-026-00616-7","title":"Personalized frequency estimation via multi-domain utility-optimized local differential privacy","display_name":"Personalized frequency estimation via multi-domain utility-optimized local differential privacy","publication_year":2026,"publication_date":"2026-03-07","ids":{"openalex":"https://openalex.org/W7134118490","doi":"https://doi.org/10.1007/s44443-026-00616-7"},"language":"en","primary_location":{"id":"doi:10.1007/s44443-026-00616-7","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s44443-026-00616-7","pdf_url":null,"source":{"id":"https://openalex.org/S2764955546","display_name":"Journal of King Saud University - Computer and Information Sciences","issn_l":"1319-1578","issn":["1319-1578","2213-1248"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of King Saud University Computer and Information Sciences","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1007/s44443-026-00616-7","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5128282572","display_name":"Yunfei Li","orcid":null},"institutions":[{"id":"https://openalex.org/I10660446","display_name":"Kunming University of Science and Technology","ror":"https://ror.org/00xyeez13","country_code":"CN","type":"education","lineage":["https://openalex.org/I10660446"]},{"id":"https://openalex.org/I49185572","display_name":"Yunnan University of Finance And Economics","ror":"https://ror.org/04rhev598","country_code":"CN","type":"education","lineage":["https://openalex.org/I49185572"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yunfei Li","raw_affiliation_strings":["Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China","Graduate School, Yunnan University of Finance and Economics, 650221, Kunming, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China","institution_ids":["https://openalex.org/I10660446"]},{"raw_affiliation_string":"Graduate School, Yunnan University of Finance and Economics, 650221, Kunming, China","institution_ids":["https://openalex.org/I49185572"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5128313912","display_name":"Xiaodong Fu","orcid":null},"institutions":[{"id":"https://openalex.org/I10660446","display_name":"Kunming University of Science and Technology","ror":"https://ror.org/00xyeez13","country_code":"CN","type":"education","lineage":["https://openalex.org/I10660446"]},{"id":"https://openalex.org/I4210131262","display_name":"Yunnan Province Science and Technology Department","ror":"https://ror.org/03whqdf70","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210131262"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaodong Fu","raw_affiliation_strings":["Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China","Yunnan Provincial Key Laboratory of Computer Technology Application, 650500, Kunming, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China","institution_ids":["https://openalex.org/I10660446"]},{"raw_affiliation_string":"Yunnan Provincial Key Laboratory of Computer Technology Application, 650500, Kunming, China","institution_ids":["https://openalex.org/I4210131262"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5128307233","display_name":"Li Liu","orcid":null},"institutions":[{"id":"https://openalex.org/I10660446","display_name":"Kunming University of Science and Technology","ror":"https://ror.org/00xyeez13","country_code":"CN","type":"education","lineage":["https://openalex.org/I10660446"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Li Liu","raw_affiliation_strings":["Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China","institution_ids":["https://openalex.org/I10660446"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5104432403","display_name":"Jiaman Ding","orcid":null},"institutions":[{"id":"https://openalex.org/I10660446","display_name":"Kunming University of Science and Technology","ror":"https://ror.org/00xyeez13","country_code":"CN","type":"education","lineage":["https://openalex.org/I10660446"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiaman Ding","raw_affiliation_strings":["Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China","institution_ids":["https://openalex.org/I10660446"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5128325051","display_name":"Wei Peng","orcid":null},"institutions":[{"id":"https://openalex.org/I10660446","display_name":"Kunming University of Science and Technology","ror":"https://ror.org/00xyeez13","country_code":"CN","type":"education","lineage":["https://openalex.org/I10660446"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wei Peng","raw_affiliation_strings":["Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Information Engineering and Automation, Kunming University of Science and Technology, 650500, Kunming, China","institution_ids":["https://openalex.org/I10660446"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5128313912"],"corresponding_institution_ids":["https://openalex.org/I10660446","https://openalex.org/I4210131262"],"apc_list":{"value":1350,"currency":"USD","value_usd":1350},"apc_paid":{"value":1350,"currency":"USD","value_usd":1350},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.22571352,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"38","issue":"5","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.8464999794960022,"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":0.8464999794960022,"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":0.016200000420212746,"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/T10136","display_name":"Statistical Methods and Inference","score":0.013799999840557575,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/differential-privacy","display_name":"Differential privacy","score":0.48750001192092896},{"id":"https://openalex.org/keywords/estimation","display_name":"Estimation","score":0.38580000400543213},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.3393000066280365},{"id":"https://openalex.org/keywords/information-privacy","display_name":"Information privacy","score":0.32820001244544983},{"id":"https://openalex.org/keywords/privacy-protection","display_name":"Privacy protection","score":0.30820000171661377},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.2962999939918518}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.598800003528595},{"id":"https://openalex.org/C23130292","wikidata":"https://www.wikidata.org/wiki/Q5275358","display_name":"Differential privacy","level":2,"score":0.48750001192092896},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.38580000400543213},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.38179999589920044},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.3393000066280365},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.32820001244544983},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3260999917984009},{"id":"https://openalex.org/C3017597292","wikidata":"https://www.wikidata.org/wiki/Q25052250","display_name":"Privacy protection","level":2,"score":0.30820000171661377},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.2962999939918518},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.29499998688697815},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.2897999882698059},{"id":"https://openalex.org/C93226319","wikidata":"https://www.wikidata.org/wiki/Q193137","display_name":"Differential (mechanical device)","level":2,"score":0.267300009727478},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.26269999146461487},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.2540000081062317},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.2515000104904175}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s44443-026-00616-7","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s44443-026-00616-7","pdf_url":null,"source":{"id":"https://openalex.org/S2764955546","display_name":"Journal of King Saud University - Computer and Information Sciences","issn_l":"1319-1578","issn":["1319-1578","2213-1248"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of King Saud University Computer and Information Sciences","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:ae109947d5314a6db54085f38bae3be6","is_oa":true,"landing_page_url":"https://doaj.org/article/ae109947d5314a6db54085f38bae3be6","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":"Journal of King Saud University: Computer and Information Sciences, Vol 38, Iss 5 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1007/s44443-026-00616-7","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s44443-026-00616-7","pdf_url":null,"source":{"id":"https://openalex.org/S2764955546","display_name":"Journal of King Saud University - Computer and Information Sciences","issn_l":"1319-1578","issn":["1319-1578","2213-1248"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of King Saud University Computer and Information Sciences","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2692903424","display_name":null,"funder_award_id":"62262036","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G953332430","display_name":null,"funder_award_id":"62362043","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1981029888","https://openalex.org/W2440056311","https://openalex.org/W2594311007","https://openalex.org/W2792817205","https://openalex.org/W2797851444","https://openalex.org/W2807188086","https://openalex.org/W3031648392","https://openalex.org/W4205228770","https://openalex.org/W4287691174","https://openalex.org/W4318149028","https://openalex.org/W4324066858","https://openalex.org/W4385489087","https://openalex.org/W4385597332","https://openalex.org/W4387848602","https://openalex.org/W4395671949","https://openalex.org/W4405395209","https://openalex.org/W4407247228","https://openalex.org/W4410816405"],"related_works":[],"abstract_inverted_index":{"Utility-Optimized":[0],"Local":[1],"Differential":[2],"Privacy":[3],"(ULDP)":[4],"improves":[5],"frequency":[6,108],"estimation":[7],"utility":[8],"by":[9],"separating":[10],"sensitive":[11,18,35],"from":[12],"non-sensitive":[13],"values,":[14],"yet":[15],"a":[16,45,49],"single":[17],"scope":[19,47,133,138],"limits":[20],"personalization":[21],"and":[22,40,48,68,79,96,107,148,155,162,172],"bandwidth":[23,156],"efficiency.":[24],"We":[25,52,71],"propose":[26],"Multi-Domain":[27],"Personalized":[28],"ULDP":[29,114,124],"(MDPULDP),":[30],"which":[31],"partitions":[32],"the":[33,63,131],"real":[34],"domain":[36],"into":[37],"disjoint":[38],"subdomains":[39],"lets":[41],"users":[42],"choose":[43],"both":[44,87],"protected":[46,132],"privacy":[50,105],"budget.":[51],"aggregate":[53],"heterogeneous":[54],"reports":[55],"via":[56],"align-then-weight:":[57],"per-scope":[58],"debiasing,":[59],"server-side":[60],"alignment/lifting":[61],"to":[62,158],"global":[64],"domain,":[65],"frequency-weighted":[66],"averaging,":[67],"preserving":[69],"unbiasedness.":[70],"instantiate":[72],"MDPULDP":[73,111,151],"with":[74,137],"Generalized":[75],"Randomized":[76,80],"Response":[77,84],"(GRR)":[78],"Aggregatable":[81],"Privacy-Preserving":[82],"Ordinal":[83],"(RAPPOR).":[85],"For":[86],"instantiations,":[88],"we":[89],"prove":[90],"$$(\\epsilon":[91],",\\delta":[92],")$$-ULDP":[93],"privacy,":[94],"unbiasedness,":[95],"closed-form":[97],"variance/Mean":[98],"Squared":[99],"Error":[100],"(MSE)":[101],"bounds.":[102],"Under":[103],"equal":[104],"budgets":[106],"weights,":[109],"GRR-based":[110],"never":[112],"underperforms":[113],"(strictly":[115],"better":[116],"whenever":[117],"any":[118],"subdomain":[119],"is":[120],"smaller).":[121],"In":[122],"standard":[123],"regimes":[125],"for":[126,140,143],"RAPPOR,":[127],"MSE":[128,154],"decreases":[129],"as":[130],"shrinks.":[134],"Communication":[135],"scales":[136],"(logarithmically":[139],"GRR,":[141],"linearly":[142],"RAPPOR).":[144],"On":[145],"Adult,":[146],"DrugsCom,":[147],"synthetic":[149],"data,":[150],"consistently":[152],"reduces":[153],"compared":[157],"strong":[159],"baselines.":[160],"Ablations":[161],"deployment":[163],"notes":[164],"(e.g.,":[165],"mitigating":[166],"policy-selection":[167],"leakage)":[168],"demonstrate":[169],"its":[170],"robustness":[171],"practicality.":[173]},"counts_by_year":[],"updated_date":"2026-06-05T06:17:00.636019","created_date":"2026-03-08T00:00:00"}
