{"id":"https://openalex.org/W3133392487","doi":"https://doi.org/10.3390/ijgi10020078","title":"Privacy-Preserving Trajectory Data Publishing by Dynamic Anonymization with Bounded Distortion","display_name":"Privacy-Preserving Trajectory Data Publishing by Dynamic Anonymization with Bounded Distortion","publication_year":2021,"publication_date":"2021-02-16","ids":{"openalex":"https://openalex.org/W3133392487","doi":"https://doi.org/10.3390/ijgi10020078","mag":"3133392487"},"language":"en","primary_location":{"id":"doi:10.3390/ijgi10020078","is_oa":true,"landing_page_url":"https://doi.org/10.3390/ijgi10020078","pdf_url":"https://www.mdpi.com/2220-9964/10/2/78/pdf?version=1614084723","source":{"id":"https://openalex.org/S2764431341","display_name":"ISPRS International Journal of Geo-Information","issn_l":"2220-9964","issn":["2220-9964"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ISPRS International Journal of Geo-Information","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2220-9964/10/2/78/pdf?version=1614084723","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101818875","display_name":"Songyuan Li","orcid":"https://orcid.org/0000-0002-6884-3448"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Songyuan Li","raw_affiliation_strings":["School of Computer Science, Sun Yat-sen University, GuangZhou 510275, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science, Sun Yat-sen University, GuangZhou 510275, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100681241","display_name":"Hui Tian","orcid":"https://orcid.org/0000-0002-7952-571X"},"institutions":[{"id":"https://openalex.org/I11701301","display_name":"Griffith University","ror":"https://ror.org/02sc3r913","country_code":"AU","type":"education","lineage":["https://openalex.org/I11701301"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Hui Tian","raw_affiliation_strings":["School of Information and Communication Technology, Griffith University, Nathan 4111, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information and Communication Technology, Griffith University, Nathan 4111, Australia","institution_ids":["https://openalex.org/I11701301"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070128994","display_name":"Hong Shen","orcid":"https://orcid.org/0000-0002-3663-6591"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hong Shen","raw_affiliation_strings":["School of Computer Science, Sun Yat-sen University, GuangZhou 510275, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science, Sun Yat-sen University, GuangZhou 510275, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103082980","display_name":"Yingpeng Sang","orcid":"https://orcid.org/0000-0001-8978-7310"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yingpeng Sang","raw_affiliation_strings":["School of Computer Science, Sun Yat-sen University, GuangZhou 510275, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science, Sun Yat-sen University, GuangZhou 510275, China","institution_ids":["https://openalex.org/I157773358"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5070128994"],"corresponding_institution_ids":["https://openalex.org/I157773358"],"apc_list":{"value":1400,"currency":"CHF","value_usd":1515},"apc_paid":{"value":1400,"currency":"CHF","value_usd":1515},"fwci":0.8189,"has_fulltext":true,"cited_by_count":13,"citation_normalized_percentile":{"value":0.76922567,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"10","issue":"2","first_page":"78","last_page":"78"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":1.0,"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":1.0,"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/T11704","display_name":"Mobile Crowdsensing and Crowdsourcing","score":0.9945999979972839,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"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/T10761","display_name":"Vehicular Ad Hoc Networks (VANETs)","score":0.9907000064849854,"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/trajectory","display_name":"Trajectory","score":0.8681572079658508},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.774024248123169},{"id":"https://openalex.org/keywords/data-publishing","display_name":"Data publishing","score":0.7299786806106567},{"id":"https://openalex.org/keywords/distortion","display_name":"Distortion (music)","score":0.6101626753807068},{"id":"https://openalex.org/keywords/bounded-function","display_name":"Bounded function","score":0.5655056834220886},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5650723576545715},{"id":"https://openalex.org/keywords/generalization","display_name":"Generalization","score":0.5410235524177551},{"id":"https://openalex.org/keywords/data-set","display_name":"Data set","score":0.5233466029167175},{"id":"https://openalex.org/keywords/k-anonymity","display_name":"k-anonymity","score":0.5070624351501465},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.5024597644805908},{"id":"https://openalex.org/keywords/information-privacy","display_name":"Information privacy","score":0.4392293393611908},{"id":"https://openalex.org/keywords/security-analysis","display_name":"Security analysis","score":0.4177211821079254},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.40612298250198364},{"id":"https://openalex.org/keywords/publishing","display_name":"Publishing","score":0.23771223425865173},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.16364240646362305},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.15200656652450562},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.10664734244346619},{"id":"https://openalex.org/keywords/law","display_name":"Law","score":0.09220930933952332}],"concepts":[{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.8681572079658508},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.774024248123169},{"id":"https://openalex.org/C2781396290","wikidata":"https://www.wikidata.org/wiki/Q17051824","display_name":"Data publishing","level":3,"score":0.7299786806106567},{"id":"https://openalex.org/C126780896","wikidata":"https://www.wikidata.org/wiki/Q899871","display_name":"Distortion (music)","level":4,"score":0.6101626753807068},{"id":"https://openalex.org/C34388435","wikidata":"https://www.wikidata.org/wiki/Q2267362","display_name":"Bounded function","level":2,"score":0.5655056834220886},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5650723576545715},{"id":"https://openalex.org/C177148314","wikidata":"https://www.wikidata.org/wiki/Q170084","display_name":"Generalization","level":2,"score":0.5410235524177551},{"id":"https://openalex.org/C58489278","wikidata":"https://www.wikidata.org/wiki/Q1172284","display_name":"Data set","level":2,"score":0.5233466029167175},{"id":"https://openalex.org/C2777706471","wikidata":"https://www.wikidata.org/wiki/Q17061432","display_name":"k-anonymity","level":3,"score":0.5070624351501465},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.5024597644805908},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.4392293393611908},{"id":"https://openalex.org/C38369872","wikidata":"https://www.wikidata.org/wiki/Q7445009","display_name":"Security analysis","level":2,"score":0.4177211821079254},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.40612298250198364},{"id":"https://openalex.org/C151719136","wikidata":"https://www.wikidata.org/wiki/Q3972943","display_name":"Publishing","level":2,"score":0.23771223425865173},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.16364240646362305},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.15200656652450562},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.10664734244346619},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.09220930933952332},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.0},{"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/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","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}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.3390/ijgi10020078","is_oa":true,"landing_page_url":"https://doi.org/10.3390/ijgi10020078","pdf_url":"https://www.mdpi.com/2220-9964/10/2/78/pdf?version=1614084723","source":{"id":"https://openalex.org/S2764431341","display_name":"ISPRS International Journal of Geo-Information","issn_l":"2220-9964","issn":["2220-9964"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ISPRS International Journal of Geo-Information","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:fd9817a0ee6c4a6eaef78146028718e6","is_oa":true,"landing_page_url":"https://doaj.org/article/fd9817a0ee6c4a6eaef78146028718e6","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":"ISPRS International Journal of Geo-Information, Vol 10, Iss 2, p 78 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2220-9964/10/2/78/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/ijgi10020078","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ISPRS International Journal of Geo-Information; Volume 10; Issue 2; Pages: 78","raw_type":"Text"},{"id":"pmh:oai:research-repository.griffith.edu.au:10072/403355","is_oa":true,"landing_page_url":"http://hdl.handle.net/10072/403355","pdf_url":null,"source":{"id":"https://openalex.org/S4306402548","display_name":"Griffith Research Online (Griffith University, Queensland, Australia)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I11701301","host_organization_name":"Griffith University","host_organization_lineage":["https://openalex.org/I11701301"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal article"}],"best_oa_location":{"id":"doi:10.3390/ijgi10020078","is_oa":true,"landing_page_url":"https://doi.org/10.3390/ijgi10020078","pdf_url":"https://www.mdpi.com/2220-9964/10/2/78/pdf?version=1614084723","source":{"id":"https://openalex.org/S2764431341","display_name":"ISPRS International Journal of Geo-Information","issn_l":"2220-9964","issn":["2220-9964"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ISPRS International Journal of Geo-Information","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities","score":0.46000000834465027}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3133392487.pdf","grobid_xml":"https://content.openalex.org/works/W3133392487.grobid-xml"},"referenced_works_count":34,"referenced_works":["https://openalex.org/W1544471796","https://openalex.org/W1565026843","https://openalex.org/W1818923311","https://openalex.org/W1968064480","https://openalex.org/W1978648695","https://openalex.org/W2003250847","https://openalex.org/W2010362518","https://openalex.org/W2021497016","https://openalex.org/W2040246974","https://openalex.org/W2044857719","https://openalex.org/W2045050127","https://openalex.org/W2060871119","https://openalex.org/W2061426027","https://openalex.org/W2116352395","https://openalex.org/W2120911939","https://openalex.org/W2126818112","https://openalex.org/W2134479759","https://openalex.org/W2142431032","https://openalex.org/W2149058896","https://openalex.org/W2154851771","https://openalex.org/W2322553181","https://openalex.org/W2461601613","https://openalex.org/W2511693736","https://openalex.org/W2566056116","https://openalex.org/W2895224869","https://openalex.org/W2912596479","https://openalex.org/W2953018250","https://openalex.org/W2954386402","https://openalex.org/W3001902414","https://openalex.org/W3003710153","https://openalex.org/W3006564814","https://openalex.org/W3015622663","https://openalex.org/W6632454655","https://openalex.org/W6651009948"],"related_works":["https://openalex.org/W2542812593","https://openalex.org/W2498058871","https://openalex.org/W2184616379","https://openalex.org/W4297283167","https://openalex.org/W2556750375","https://openalex.org/W2393528873","https://openalex.org/W2546215426","https://openalex.org/W1997073399","https://openalex.org/W2533546989","https://openalex.org/W2381826434"],"abstract_inverted_index":{"Publication":[0],"of":[1,8,13,23,69,157,173,188,197,211],"trajectory":[2,70,91,115,132,143,165,186,217],"data":[3,71,101,107,144,166,176,187,218,231,245],"that":[4,223],"contain":[5],"rich":[6],"information":[7,48,159],"vehicles":[9,24],"in":[10,25,53,99,129,136,163,209],"the":[11,66,89,130,155,164,174,195,205,234,244],"dimensions":[12],"time":[14],"and":[15,21,27,81,103,168,179,201,216],"space":[16],"(location)":[17],"enables":[18],"online":[19],"monitoring":[20],"supervision":[22],"motion":[26],"offline":[28],"traffic":[29],"analysis":[30],"for":[31,41,150],"various":[32],"management":[33],"tasks.":[34],"However,":[35,73],"it":[36,203],"also":[37],"provides":[38],"security":[39,246],"holes":[40],"privacy":[42,47,67,156,212],"breaches":[43],"as":[44,77],"exposing":[45],"individual\u2019s":[46,56],"to":[49,92,140],"public":[50],"may":[51],"results":[52,98,221],"attacks":[54,215],"threatening":[55],"safety.":[57],"Therefore,":[58],"increased":[59],"attention":[60],"has":[61],"been":[62],"made":[63],"recently":[64],"on":[65,184,230],"protection":[68,86],"publishing.":[72],"existing":[74,206,235],"methods,":[75],"such":[76],"generalization":[78],"via":[79,83],"anonymization":[80,120],"suppression":[82],"randomization,":[84],"achieve":[85],"by":[87],"modifying":[88],"original":[90,131],"form":[93,141],"a":[94,105,114,137,147,170],"publishable":[95],"trajectory,":[96],"which":[97,152],"significant":[100],"distortion":[102,149],"hence":[104],"low":[106],"utility.":[108],"In":[109,124],"this":[110],"work,":[111],"we":[112,193],"propose":[113],"privacy-preserving":[116],"method":[117,200,226],"called":[118],"dynamic":[119],"with":[121,146,161,204],"bounded":[122,148],"distortion.":[123],"our":[125,198,224],"method,":[126],"individual":[127],"trajectories":[128],"set":[133,145,167],"are":[134],"mixed":[135],"localized":[138],"manner":[139],"synthetic":[142],"publishing,":[151],"can":[153],"protect":[154],"location":[158],"associated":[160],"individuals":[162],"ensure":[169],"guaranteed":[171],"utility":[172],"published":[175],"both":[177],"individually":[178],"collectively.":[180],"Through":[181],"experiments":[182],"conducted":[183],"real":[185],"Guangzhou":[189],"City":[190],"Taxi":[191],"statistics,":[192],"evaluate":[194],"performance":[196,229],"proposed":[199,225],"compare":[202],"mainstream":[207],"methods":[208,236],"terms":[210],"preservation":[213],"against":[214,247],"utilization.":[219],"The":[220],"show":[222],"achieves":[227],"better":[228],"utilization":[232],"than":[233],"using":[237],"globally":[238],"static":[239],"anonymization,":[240],"without":[241],"trading":[242],"off":[243],"attacks.":[248]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
