{"id":"https://openalex.org/W4381786069","doi":"https://doi.org/10.1109/tkde.2023.3288154","title":"PUTS: Privacy-Preserving and Utility-Enhancing Framework for Trajectory Synthesization","display_name":"PUTS: Privacy-Preserving and Utility-Enhancing Framework for Trajectory Synthesization","publication_year":2023,"publication_date":"2023-06-23","ids":{"openalex":"https://openalex.org/W4381786069","doi":"https://doi.org/10.1109/tkde.2023.3288154"},"language":"en","primary_location":{"id":"doi:10.1109/tkde.2023.3288154","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tkde.2023.3288154","pdf_url":null,"source":{"id":"https://openalex.org/S30698027","display_name":"IEEE Transactions on Knowledge and Data Engineering","issn_l":"1041-4347","issn":["1041-4347","1558-2191","2326-3865"],"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 Knowledge and Data Engineering","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/A5043575008","display_name":"Xinyue Sun","orcid":"https://orcid.org/0000-0002-4815-1874"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinyue Sun","raw_affiliation_strings":["School of Computer Science and Engineering, Beihang University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-4815-1874","affiliations":[{"raw_affiliation_string":"School of Computer Science and Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001652101","display_name":"Qingqing Ye","orcid":"https://orcid.org/0000-0003-1547-2847"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Qingqing Ye","raw_affiliation_strings":["Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hung Hom, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0003-1547-2847","affiliations":[{"raw_affiliation_string":"Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hung Hom, Hong Kong","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051088560","display_name":"Haibo Hu","orcid":"https://orcid.org/0000-0002-9008-2112"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Haibo Hu","raw_affiliation_strings":["Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hung Hom, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0002-9008-2112","affiliations":[{"raw_affiliation_string":"Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hung Hom, Hong Kong","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029965153","display_name":"Jiawei Duan","orcid":"https://orcid.org/0000-0002-2077-9926"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Jiawei Duan","raw_affiliation_strings":["Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hung Hom, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0002-2077-9926","affiliations":[{"raw_affiliation_string":"Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hung Hom, Hong Kong","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063417015","display_name":"Qiao Xue","orcid":"https://orcid.org/0000-0001-5523-3918"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qiao Xue","raw_affiliation_strings":["College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China"],"raw_orcid":"https://orcid.org/0000-0001-5523-3918","affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066123431","display_name":"Tianyu Wo","orcid":"https://orcid.org/0000-0002-5331-3364"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tianyu Wo","raw_affiliation_strings":["School of Software, Beihang University and Zhongguancun Laboratory, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-5331-3364","affiliations":[{"raw_affiliation_string":"School of Software, Beihang University and Zhongguancun Laboratory, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100639079","display_name":"Jie Xu","orcid":"https://orcid.org/0000-0003-4102-233X"},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Jie Xu","raw_affiliation_strings":["School of Computing, The University of Leeds, Leeds, U.K"],"raw_orcid":"https://orcid.org/0000-0003-4102-233X","affiliations":[{"raw_affiliation_string":"School of Computing, The University of Leeds, Leeds, U.K","institution_ids":["https://openalex.org/I130828816"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.6722,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.81326803,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"36","issue":"1","first_page":"296","last_page":"310"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11344","display_name":"Traffic Prediction and Management Techniques","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/2215","display_name":"Building and Construction"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11344","display_name":"Traffic Prediction and Management Techniques","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/2215","display_name":"Building and Construction"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10761","display_name":"Vehicular Ad Hoc Networks (VANETs)","score":0.9977999925613403,"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"}},{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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":0.6902357339859009},{"id":"https://openalex.org/keywords/data-publishing","display_name":"Data publishing","score":0.6546347141265869},{"id":"https://openalex.org/keywords/differential-privacy","display_name":"Differential privacy","score":0.6179745197296143},{"id":"https://openalex.org/keywords/trajectory","display_name":"Trajectory","score":0.5975677371025085},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.4491635262966156},{"id":"https://openalex.org/keywords/publishing","display_name":"Publishing","score":0.37062549591064453},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.34748998284339905},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.34166574478149414},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.32075148820877075},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.14369037747383118},{"id":"https://openalex.org/keywords/law","display_name":"Law","score":0.07457178831100464}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6902357339859009},{"id":"https://openalex.org/C2781396290","wikidata":"https://www.wikidata.org/wiki/Q17051824","display_name":"Data publishing","level":3,"score":0.6546347141265869},{"id":"https://openalex.org/C23130292","wikidata":"https://www.wikidata.org/wiki/Q5275358","display_name":"Differential privacy","level":2,"score":0.6179745197296143},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.5975677371025085},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.4491635262966156},{"id":"https://openalex.org/C151719136","wikidata":"https://www.wikidata.org/wiki/Q3972943","display_name":"Publishing","level":2,"score":0.37062549591064453},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.34748998284339905},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.34166574478149414},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.32075148820877075},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.14369037747383118},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.07457178831100464},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","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/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tkde.2023.3288154","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tkde.2023.3288154","pdf_url":null,"source":{"id":"https://openalex.org/S30698027","display_name":"IEEE Transactions on Knowledge and Data Engineering","issn_l":"1041-4347","issn":["1041-4347","1558-2191","2326-3865"],"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 Knowledge and Data Engineering","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6299999952316284,"display_name":"No poverty","id":"https://metadata.un.org/sdg/1"}],"awards":[{"id":"https://openalex.org/G5593586750","display_name":"\u673a\u5668\u5b66\u4e60\u5373\u670d\u52a1\u4e2d\u7684\u9632\u6b3a\u8bc8\u548c\u5b8c\u6574\u6027\u9a8c\u8bc1\u7814\u7a76","funder_award_id":"62072390","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G656704767","display_name":null,"funder_award_id":"62102334","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8088107578","display_name":null,"funder_award_id":"92270123","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":41,"referenced_works":["https://openalex.org/W1873763122","https://openalex.org/W2001347093","https://openalex.org/W2009611335","https://openalex.org/W2015569667","https://openalex.org/W2060871119","https://openalex.org/W2085472312","https://openalex.org/W2108215372","https://openalex.org/W2150177647","https://openalex.org/W2166771065","https://openalex.org/W2245706161","https://openalex.org/W2293703278","https://openalex.org/W2424778531","https://openalex.org/W2440056311","https://openalex.org/W2532516272","https://openalex.org/W2546643306","https://openalex.org/W2549766072","https://openalex.org/W2752805120","https://openalex.org/W2766587611","https://openalex.org/W2768256553","https://openalex.org/W2775133720","https://openalex.org/W2890836728","https://openalex.org/W2895224869","https://openalex.org/W2949732208","https://openalex.org/W2963498611","https://openalex.org/W2964749398","https://openalex.org/W2976507065","https://openalex.org/W3004609745","https://openalex.org/W3030047573","https://openalex.org/W3100559391","https://openalex.org/W3106047101","https://openalex.org/W3106284904","https://openalex.org/W3113058464","https://openalex.org/W3117066972","https://openalex.org/W3153402319","https://openalex.org/W3183767371","https://openalex.org/W3193454017","https://openalex.org/W3214720357","https://openalex.org/W4205228770","https://openalex.org/W4206720847","https://openalex.org/W4285193281","https://openalex.org/W4285307305"],"related_works":["https://openalex.org/W2915559073","https://openalex.org/W3094463742","https://openalex.org/W2884294946","https://openalex.org/W2951798800","https://openalex.org/W3209392453","https://openalex.org/W4388038709","https://openalex.org/W4241535341","https://openalex.org/W4311074414","https://openalex.org/W4234819362","https://openalex.org/W2604908921"],"abstract_inverted_index":{"Vehicle":[0],"trajectory":[1,14,57,147],"data":[2,15,47,58,75,92,123],"is":[3,48,149],"essential":[4],"for":[5],"traffic":[6],"management":[7],"and":[8,135],"location-based":[9],"services.":[10],"However,":[11],"publishing":[12,32],"real-life":[13],"has":[16],"been":[17],"challenging":[18],"because":[19,59],"vehicle":[20],"trajectories":[21,87,126],"contain":[22],"users\u2019":[23],"sensitive":[24],"information.":[25],"Differential":[26],"privacy":[27,129],"addresses":[28],"such":[29,78],"problems":[30],"by":[31,77,131],"a":[33,141,181],"synthetic":[34,158],"version":[35],"of":[36,74,122,157,178,183],"the":[37,45,120,155],"input":[38],"dataset,":[39],"but":[40,160],"existing":[41,82,174],"works":[42,83],"always":[43],"assume":[44],"real-world":[46,136,164,169,184],"absolutely":[49],"accurate.":[50],"This":[51],"assumption":[52],"no":[53],"longer":[54],"holds":[55],"in":[56,96,125,176,180],"it":[60],"typically":[61],"contains":[62],"errors":[63,124],"due":[64,88],"to":[65,71,89,103,146,151],"inaccurate":[66],"positioning":[67],"services,":[68],"which":[69],"leads":[70],"poor":[72],"performance":[73],"synthesized":[76],"trajectories.":[79],"Even":[80],"worse,":[81],"may":[84],"generate":[85],"unrealistic":[86],"their":[90],"coarse":[91],"synthesis":[93,148],"methods,":[94],"resulting":[95],"low":[97],"practical":[98],"utility":[99,179],"or":[100],"even":[101],"inability":[102],"handle":[104],"complex":[105],"tasks.":[106],"In":[107],"this":[108],"paper,":[109],"we":[110],"propose":[111],"aPrivacy-preserving":[112],"andUtility-enhancing":[113],"framework":[114,118],"forTrajectorySynthesization":[115],"(PUTS).":[116],"Our":[117],"mitigates":[119],"impact":[121],"on":[127,168],"differential":[128],"mechanisms,":[130],"exploiting":[132],"map-matching":[133],"techniques":[134],"road":[137],"network":[138],"structure.":[139],"InPUTS,":[140],"two-layer":[142],"approach":[143],"from":[144],"path":[145],"proposed":[150],"not":[152],"only":[153],"guarantee":[154],"reality":[156],"trajectories,":[159],"also":[161],"scale":[162],"upPUTSin":[163],"applications.":[165,185],"Extensive":[166],"experiments":[167],"datasets":[170],"show":[171],"thatPUTSsignificantly":[172],"outperforms":[173],"methods":[175],"terms":[177],"range":[182]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":7}],"updated_date":"2026-07-29T09:40:50.615796","created_date":"2025-10-10T00:00:00"}
