{"id":"https://openalex.org/W2988349293","doi":"https://doi.org/10.1109/tmc.2019.2952774","title":"Anonymization and De-Anonymization of Mobility Trajectories: Dissecting the Gaps Between Theory and Practice","display_name":"Anonymization and De-Anonymization of Mobility Trajectories: Dissecting the Gaps Between Theory and Practice","publication_year":2019,"publication_date":"2019-11-11","ids":{"openalex":"https://openalex.org/W2988349293","doi":"https://doi.org/10.1109/tmc.2019.2952774","mag":"2988349293"},"language":"en","primary_location":{"id":"doi:10.1109/tmc.2019.2952774","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmc.2019.2952774","pdf_url":null,"source":{"id":"https://openalex.org/S69141925","display_name":"IEEE Transactions on Mobile Computing","issn_l":"1536-1233","issn":["1536-1233","1558-0660","2161-9875"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","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 Mobile 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/A5114100372","display_name":"Huandong Wang","orcid":null},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Huandong Wang","raw_affiliation_strings":["Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-8910-8979","affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100355277","display_name":"Yong Li","orcid":"https://orcid.org/0000-0001-5617-1659"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yong Li","raw_affiliation_strings":["Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0001-5617-1659","affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078622343","display_name":"Chen Gao","orcid":"https://orcid.org/0000-0002-7561-5646"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chen Gao","raw_affiliation_strings":["Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100367418","display_name":"Gang Wang","orcid":"https://orcid.org/0000-0002-8910-8979"},"institutions":[{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Gang Wang","raw_affiliation_strings":["Department of Computer Science, University of Illinois at Urbana-Champaign (UIUC), Champaign, IL, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Illinois at Urbana-Champaign (UIUC), Champaign, IL, USA","institution_ids":["https://openalex.org/I157725225"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101459082","display_name":"Xiaoming Tao","orcid":"https://orcid.org/0000-0002-8763-9338"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaoming Tao","raw_affiliation_strings":["Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5044100655","display_name":"Depeng Jin","orcid":"https://orcid.org/0000-0003-0419-5514"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Depeng Jin","raw_affiliation_strings":["Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5114100372"],"corresponding_institution_ids":["https://openalex.org/I99065089"],"apc_list":null,"apc_paid":null,"fwci":1.5963,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.88097538,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"20","issue":"3","first_page":"796","last_page":"815"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9998000264167786,"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":0.9998000264167786,"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/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9991000294685364,"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/T10761","display_name":"Vehicular Ad Hoc Networks (VANETs)","score":0.9915000200271606,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8517143726348877},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.576296329498291},{"id":"https://openalex.org/keywords/trajectory","display_name":"Trajectory","score":0.5613954067230225},{"id":"https://openalex.org/keywords/population","display_name":"Population","score":0.4501667618751526},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.4486249089241028},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.43569517135620117},{"id":"https://openalex.org/keywords/ground-truth","display_name":"Ground truth","score":0.4322543740272522},{"id":"https://openalex.org/keywords/service-provider","display_name":"Service provider","score":0.42755192518234253},{"id":"https://openalex.org/keywords/social-network","display_name":"Social network (sociolinguistics)","score":0.4251658320426941},{"id":"https://openalex.org/keywords/variety","display_name":"Variety (cybernetics)","score":0.41234204173088074},{"id":"https://openalex.org/keywords/social-media","display_name":"Social media","score":0.3830227255821228},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3317471742630005},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.31343600153923035},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.22958296537399292},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.15213575959205627}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8517143726348877},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.576296329498291},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.5613954067230225},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.4501667618751526},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.4486249089241028},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.43569517135620117},{"id":"https://openalex.org/C146849305","wikidata":"https://www.wikidata.org/wiki/Q370766","display_name":"Ground truth","level":2,"score":0.4322543740272522},{"id":"https://openalex.org/C116537","wikidata":"https://www.wikidata.org/wiki/Q2169973","display_name":"Service provider","level":3,"score":0.42755192518234253},{"id":"https://openalex.org/C4727928","wikidata":"https://www.wikidata.org/wiki/Q17164759","display_name":"Social network (sociolinguistics)","level":3,"score":0.4251658320426941},{"id":"https://openalex.org/C136197465","wikidata":"https://www.wikidata.org/wiki/Q1729295","display_name":"Variety (cybernetics)","level":2,"score":0.41234204173088074},{"id":"https://openalex.org/C518677369","wikidata":"https://www.wikidata.org/wiki/Q202833","display_name":"Social media","level":2,"score":0.3830227255821228},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3317471742630005},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.31343600153923035},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.22958296537399292},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.15213575959205627},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tmc.2019.2952774","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmc.2019.2952774","pdf_url":null,"source":{"id":"https://openalex.org/S69141925","display_name":"IEEE Transactions on Mobile Computing","issn_l":"1536-1233","issn":["1536-1233","1558-0660","2161-9875"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","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 Mobile Computing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1757078732","display_name":null,"funder_award_id":"20031887521","funder_id":"https://openalex.org/F4320329777","funder_display_name":"Beijing National Research Center For Information Science And Technology"},{"id":"https://openalex.org/G3710896277","display_name":null,"funder_award_id":"61971267","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3734416573","display_name":null,"funder_award_id":"61972223","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4542831392","display_name":null,"funder_award_id":"61861136003","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4872662616","display_name":null,"funder_award_id":"U1936217","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5268169751","display_name":null,"funder_award_id":"61941117","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"},{"id":"https://openalex.org/F4320329777","display_name":"Beijing National Research Center For Information Science And Technology","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":55,"referenced_works":["https://openalex.org/W882207295","https://openalex.org/W1524630018","https://openalex.org/W1532325895","https://openalex.org/W1971157729","https://openalex.org/W1971472627","https://openalex.org/W1973980096","https://openalex.org/W1982300822","https://openalex.org/W1993157943","https://openalex.org/W1993599520","https://openalex.org/W2010362518","https://openalex.org/W2013863451","https://openalex.org/W2026910242","https://openalex.org/W2045686369","https://openalex.org/W2055992762","https://openalex.org/W2061204737","https://openalex.org/W2078101615","https://openalex.org/W2082894754","https://openalex.org/W2099111195","https://openalex.org/W2100989187","https://openalex.org/W2103033197","https://openalex.org/W2104355163","https://openalex.org/W2109426455","https://openalex.org/W2113839561","https://openalex.org/W2115240023","https://openalex.org/W2120911939","https://openalex.org/W2126895033","https://openalex.org/W2134167315","https://openalex.org/W2135930857","https://openalex.org/W2136114025","https://openalex.org/W2137424052","https://openalex.org/W2144211451","https://openalex.org/W2151908916","https://openalex.org/W2159024459","https://openalex.org/W2159675343","https://openalex.org/W2175971604","https://openalex.org/W2195256693","https://openalex.org/W2247394048","https://openalex.org/W2281611560","https://openalex.org/W2323121671","https://openalex.org/W2339803498","https://openalex.org/W2374981910","https://openalex.org/W2478708596","https://openalex.org/W2558896083","https://openalex.org/W2579581054","https://openalex.org/W2598689838","https://openalex.org/W2626149625","https://openalex.org/W2746057509","https://openalex.org/W2792648564","https://openalex.org/W2886040337","https://openalex.org/W2964211797","https://openalex.org/W3099827099","https://openalex.org/W4213009331","https://openalex.org/W4247997244","https://openalex.org/W6685869566","https://openalex.org/W6739385609"],"related_works":["https://openalex.org/W2032233321","https://openalex.org/W3121970507","https://openalex.org/W2110028391","https://openalex.org/W54497855","https://openalex.org/W217960748","https://openalex.org/W3125814499","https://openalex.org/W2090827041","https://openalex.org/W2094012830","https://openalex.org/W187246281","https://openalex.org/W4295532600"],"abstract_inverted_index":{"Human":[0],"mobility":[1],"trajectories":[2,23],"are":[3,71,195],"increasingly":[4],"collected":[5,79],"by":[6,269],"ISPs":[7],"to":[8,127,182,198,246],"assist":[9],"academic":[10],"research":[11],"and":[12,92,105,172,206,210],"commercial":[13],"applications.":[14],"Meanwhile,":[15],"there":[16],"is":[17,30,63,147],"a":[18,80,89,99,106,124,130],"growing":[19],"concern":[20],"that":[21,140,156,194,216,258],"individual":[22],"can":[24,262],"be":[25],"de-anonymized":[26],"when":[27],"the":[28,49,68,112,144,150,161,167,173,183,227,243,252,264,274],"data":[29,122,168,179],"shared,":[31],"using":[32],"information":[33],"from":[34,85,98,149,169],"external":[35,95],"sources":[36],"(e.g.,":[37],"online":[38],"social":[39,101],"networks).":[40],"To":[41],"understand":[42],"this":[43,76],"risk,":[44],"prior":[45],"works":[46],"either":[47],"estimate":[48],"theoretical":[50,69,151],"privacy":[51,250],"bound":[52],"or":[53,201],"simulate":[54],"de-anonymization":[55,133,253,267],"attacks":[56,268],"on":[57,111,186],"synthetically":[58],"created":[59],"datasets.":[60],"However,":[61],"it":[62],"not":[64],"clear":[65],"how":[66],"well":[67],"estimations":[70],"preserved":[72],"in":[73,136,143],"practice.":[74],"In":[75],"article,":[77],"we":[78,189,235],"large-scale":[81],"ground-truth":[82,121],"trajectory":[83,96],"dataset":[84,146],"2,161,500":[86],"users":[87],"of":[88,119,132,163,176,266,276],"cellular":[90],"network,":[91],"two":[93,117,237],"matched":[94],"datasets":[97],"large":[100,120],"network":[102],"(56,683":[103],"users)":[104,110],"check-in/review":[107],"service":[108],"(45,790":[109],"same":[113],"user":[114,177],"population.":[115],"The":[116],"sets":[118],"provide":[123],"rare":[125],"opportunity":[126],"extensively":[128],"evaluate":[129],"variety":[131],"algorithms":[134,158,193,218],"(nine":[135],"total).":[137],"We":[138],"find":[139],"their":[141],"performance":[142,224,265],"real-world":[145],"far":[148],"bound.":[152],"Further":[153],"analysis":[154],"shows":[155],"most":[157],"have":[159],"under-estimated":[160],"impact":[162],"spatio-temporal":[164,244],"mismatches":[165,203,245],"between":[166],"different":[170],"sources,":[171],"high":[174],"sparsity":[175],"generated":[178],"also":[180],"contributes":[181],"under-performance.":[184],"Based":[185],"these":[187],"insights,":[188],"propose":[190,236],"four":[191],"new":[192,238],"specially":[196],"designed":[197],"tolerate":[199],"spatial":[200],"temporal":[202],"(or":[204],"both)":[205],"model":[207],"location":[208],"contexts":[209],"time":[211],"contexts.":[212],"Extensive":[213],"evaluations":[214],"show":[215,257],"our":[217,232,259,277],"achieve":[219],"more":[220],"than":[221],"17":[222],"percent":[223],"gain":[225],"over":[226,270],"best":[228],"existing":[229],"algorithms,":[230],"confirming":[231],"insights.":[233,278],"Further,":[234],"location-privacy":[239],"preserving":[240],"mechanisms":[241,261],"utilizing":[242],"better":[247],"protect":[248],"users'":[249],"against":[251],"attack.":[254],"Evaluation":[255],"results":[256],"proposed":[260],"reduce":[263],"8.0":[271],"percent,":[272],"demonstrating":[273],"effectiveness":[275]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":8},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":2}],"updated_date":"2026-05-31T08:46:17.908082","created_date":"2025-10-10T00:00:00"}
