{"id":"https://openalex.org/W4409581018","doi":"https://doi.org/10.1109/tsc.2025.3562354","title":"Artificial Impostors: An Efficient and Scalable Scheme for Location Privacy Preservation","display_name":"Artificial Impostors: An Efficient and Scalable Scheme for Location Privacy Preservation","publication_year":2025,"publication_date":"2025-04-18","ids":{"openalex":"https://openalex.org/W4409581018","doi":"https://doi.org/10.1109/tsc.2025.3562354"},"language":"en","primary_location":{"id":"doi:10.1109/tsc.2025.3562354","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsc.2025.3562354","pdf_url":null,"source":{"id":"https://openalex.org/S204223317","display_name":"IEEE Transactions on Services Computing","issn_l":"1939-1374","issn":["1939-1374","2372-0204"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Services Computing","raw_type":"journal-article"},"type":"article","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/A5100703190","display_name":"Hao Tang","orcid":"https://orcid.org/0009-0006-6814-3456"},"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":true,"raw_author_name":"Hao Tang","raw_affiliation_strings":["College of Computer Science and Technology, Tongji University, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Kunfeng Chen","orcid":"https://orcid.org/0009-0002-2972-7038"},"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":"Kunfeng Chen","raw_affiliation_strings":["College of Computer Science and Technology, Tongji University, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102939261","display_name":"Zhiyang Xie","orcid":"https://orcid.org/0000-0002-7871-7146"},"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":"Zhiyang Xie","raw_affiliation_strings":["College of Computer Science and Technology, Tongji University, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]},{"author_position":"last","author":{"id":null,"display_name":"Cheng Wang","orcid":"https://orcid.org/0000-0002-4752-0316"},"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":"Cheng Wang","raw_affiliation_strings":["College of Computer Science and Technology, Tongji University, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5100703190"],"corresponding_institution_ids":["https://openalex.org/I116953780"],"apc_list":null,"apc_paid":null,"fwci":2.0691,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.85159589,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":"18","issue":"3","first_page":"1262","last_page":"1277"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9264000058174133,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9264000058174133,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11158","display_name":"Wireless Networks and Protocols","score":0.9207000136375427,"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"}},{"id":"https://openalex.org/T11598","display_name":"Internet Traffic Analysis and Secure E-voting","score":0.9125999808311462,"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":0.8671421408653259},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6711702942848206},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.6158112287521362},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4353167712688446},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.3880856931209564},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.21419498324394226}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8671421408653259},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6711702942848206},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.6158112287521362},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4353167712688446},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.3880856931209564},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.21419498324394226},{"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/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tsc.2025.3562354","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsc.2025.3562354","pdf_url":null,"source":{"id":"https://openalex.org/S204223317","display_name":"IEEE Transactions on Services Computing","issn_l":"1939-1374","issn":["1939-1374","2372-0204"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Services Computing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1012616008","display_name":null,"funder_award_id":"62372328","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1395231520","display_name":null,"funder_award_id":"22XD1423700","funder_id":"https://openalex.org/F4320335796","funder_display_name":"Program of Shanghai Academic Research Leader"},{"id":"https://openalex.org/G1474585034","display_name":null,"funder_award_id":"2024-1-ZD-04","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"},{"id":"https://openalex.org/G2999259666","display_name":null,"funder_award_id":"22120240357","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null},{"id":"https://openalex.org/F4320335796","display_name":"Program of Shanghai Academic Research Leader","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":41,"referenced_works":["https://openalex.org/W1544471796","https://openalex.org/W2004986927","https://openalex.org/W2038098902","https://openalex.org/W2040246974","https://openalex.org/W2045050127","https://openalex.org/W2050169439","https://openalex.org/W2077297105","https://openalex.org/W2079833280","https://openalex.org/W2082894754","https://openalex.org/W2119257015","https://openalex.org/W2120911939","https://openalex.org/W2128800833","https://openalex.org/W2144565093","https://openalex.org/W2145457662","https://openalex.org/W2153787007","https://openalex.org/W2159890390","https://openalex.org/W2336933238","https://openalex.org/W2511693736","https://openalex.org/W2612373372","https://openalex.org/W2739883206","https://openalex.org/W2746057509","https://openalex.org/W2768696376","https://openalex.org/W2769903624","https://openalex.org/W2789920484","https://openalex.org/W2894779347","https://openalex.org/W2911978475","https://openalex.org/W3008741522","https://openalex.org/W3032401953","https://openalex.org/W3042165860","https://openalex.org/W3099753023","https://openalex.org/W3103513224","https://openalex.org/W3120370876","https://openalex.org/W3142190433","https://openalex.org/W3210126249","https://openalex.org/W4210406404","https://openalex.org/W4287889169","https://openalex.org/W4288345394","https://openalex.org/W4309638106","https://openalex.org/W4378697335","https://openalex.org/W4378903754","https://openalex.org/W4404644602"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W2389214306"],"abstract_inverted_index":{"The":[0,92,225],"progress":[1],"of":[2,74,157,161,165,171,178,199,254],"location-based":[3],"services":[4],"has":[5],"led":[6],"to":[7,32,40,44,97,106,129,167],"severe":[8],"concerns":[9],"about":[10],"location":[11,24,126],"privacy":[12,25,172,196,238],"leakage.":[13],"However,":[14],"existing":[15],"methods":[16],"are":[17,29],"still":[18],"incompetent":[19],"for":[20],"efficient":[21],"and":[22,114,143,163,176,204,210,221,239],"scalable":[23],"preservation":[26,197],"(LPP).":[27],"They":[28],"often":[30],"vulnerable":[31],"inference":[33],"attacks":[34],"with":[35,58],"side":[36],"information,":[37],"or":[38],"hard":[39],"be":[41,130],"implemented":[42],"due":[43],"the":[45,54,72,98,107,124,137,144,152,169,179,187,195,211,245,252],"high":[46,55],"computational":[47,60],"complexity.":[48,61],"In":[49],"this":[50],"paper,":[51],"we":[52,83],"pursue":[53],"protection":[56],"quality":[57,170,198],"low":[59],"We":[62,132,150],"propose":[63],"a":[64,234],"<italic":[65,88,119,138,145],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[66,89,120,139,146,201,206],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">scalable</i>":[67],"LPP":[68,255],"method":[69,193,232],"based":[70],"on":[71,154,183,214],"paradigm":[73,256],"counterfeiting":[75,258],"locations.":[76,259],"To":[77],"make":[78],"fake":[79],"locations":[80],"extremely":[81],"plausible,":[82],"forge":[84],"them":[85],"by":[86],"synthesizing":[87],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">artificial":[90],"impostors</i>.":[91],"so-called":[93],"artificial":[94],"impostors":[95],"refer":[96],"synthesized":[99],"traces":[100],"that":[101,127,191,230],"have":[102],"similar":[103,111],"semantic":[104,148],"features":[105],"actual":[108],"traces,":[109],"e.g.,":[110],"transition":[112],"patterns,":[113],"do":[115],"not":[116],"contain":[117],"any":[118],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">protected":[121],"location</i>,":[122],"i.e.,":[123],"exact":[125],"needs":[128],"protected.":[131],"devise":[133],"two":[134,158,185],"dedicated":[135],"techniques:":[136],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">station-based":[140],"synthesis":[141],"method</i>":[142],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">population-level":[147],"model</i>.":[149],"conduct":[151],"experiments":[153],"real":[155],"datasets":[156],"cities":[159],"(Shanghai":[160],"China":[162],"Asturias":[164],"Spain)":[166],"validate":[168],"preservation,":[173],"utility":[174],"loss,":[175],"scalability":[177],"proposed":[180],"method.":[181],"Based":[182],"these":[184],"datasets,":[186],"experimental":[188,226],"results":[189,227],"show":[190,229],"our":[192,231],"achieves":[194,233],"<inline-formula":[200,205],"xmlns:xlink=\"http://www.w3.org/1999/xlink\"><tex-math":[202,207],"notation=\"LaTeX\">$97.68\\%$</tex-math></inline-formula>":[203],"notation=\"LaTeX\">$96.24\\%$</tex-math></inline-formula>,":[208],"respectively,":[209],"time":[212],"spent":[213],"building":[215],"generators":[216],"is":[217],"only":[218],"144.96":[219],"seconds":[220],"136.08":[222],"seconds,":[223],"respectively.":[224],"also":[228],"good":[235],"trade-off":[236],"between":[237],"utility.":[240],"Our":[241],"study":[242],"would":[243],"give":[244],"research":[246],"community":[247],"new":[248],"insights":[249],"into":[250],"improving":[251],"practicality":[253],"via":[257]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}