{"id":"https://openalex.org/W3033454718","doi":"https://doi.org/10.1145/3391707","title":"A Traffic Density Estimation Model Based on Crowdsourcing Privacy Protection","display_name":"A Traffic Density Estimation Model Based on Crowdsourcing Privacy Protection","publication_year":2020,"publication_date":"2020-05-22","ids":{"openalex":"https://openalex.org/W3033454718","doi":"https://doi.org/10.1145/3391707","mag":"3033454718"},"language":"en","primary_location":{"id":"doi:10.1145/3391707","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3391707","pdf_url":null,"source":{"id":"https://openalex.org/S2492086750","display_name":"ACM Transactions on Intelligent Systems and Technology","issn_l":"2157-6904","issn":["2157-6904","2157-6912"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Intelligent Systems and Technology","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/A5019055673","display_name":"Yapei Huang","orcid":"https://orcid.org/0000-0002-7190-1864"},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yapei Huang","raw_affiliation_strings":["Beijing Normal University, Haidian District, Beijing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Beijing Normal University, Haidian District, Beijing, P. R. China","institution_ids":["https://openalex.org/I25254941"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028059842","display_name":"Yun Tian","orcid":"https://orcid.org/0000-0001-6989-7993"},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yun Tian","raw_affiliation_strings":["Beijing Normal University, Haidian District, Beijing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Beijing Normal University, Haidian District, Beijing, P. R. China","institution_ids":["https://openalex.org/I25254941"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103105157","display_name":"Zhijie Liu","orcid":null},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhijie Liu","raw_affiliation_strings":["Beijing Normal University, Haidian District, Beijing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Beijing Normal University, Haidian District, Beijing, P. R. China","institution_ids":["https://openalex.org/I25254941"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100524850","display_name":"Xiaowei Jin","orcid":null},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaowei Jin","raw_affiliation_strings":["Beijing Normal University, Haidian District, Beijing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Beijing Normal University, Haidian District, Beijing, P. R. China","institution_ids":["https://openalex.org/I25254941"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100387415","display_name":"Yanan Liu","orcid":"https://orcid.org/0009-0001-7490-6177"},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanan Liu","raw_affiliation_strings":["Beijing Normal University, Haidian District, Beijing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Beijing Normal University, Haidian District, Beijing, P. R. China","institution_ids":["https://openalex.org/I25254941"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084345073","display_name":"Shifeng Zhao","orcid":null},"institutions":[{"id":"https://openalex.org/I25254941","display_name":"Beijing Normal University","ror":"https://ror.org/022k4wk35","country_code":"CN","type":"education","lineage":["https://openalex.org/I25254941"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shifeng Zhao","raw_affiliation_strings":["Beijing Normal University, Haidian District, Beijing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Beijing Normal University, Haidian District, Beijing, P. R. China","institution_ids":["https://openalex.org/I25254941"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5052586688","display_name":"Daxin Tian","orcid":"https://orcid.org/0000-0001-7796-5650"},"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":"Daxin Tian","raw_affiliation_strings":["Beihang University, Haidian District, Beijing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Beihang University, Haidian District, Beijing, P. R. China","institution_ids":["https://openalex.org/I82880672"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5019055673"],"corresponding_institution_ids":["https://openalex.org/I25254941"],"apc_list":null,"apc_paid":null,"fwci":0.9604,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.80849155,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"11","issue":"4","first_page":"1","last_page":"18"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9994999766349792,"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":0.9994999766349792,"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/T11344","display_name":"Traffic Prediction and Management Techniques","score":0.9969000220298767,"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/T11704","display_name":"Mobile Crowdsensing and Crowdsourcing","score":0.9900000095367432,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8802951574325562},{"id":"https://openalex.org/keywords/crowdsourcing","display_name":"Crowdsourcing","score":0.7181046605110168},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.5686827301979065},{"id":"https://openalex.org/keywords/server","display_name":"Server","score":0.49513664841651917},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.477505624294281},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.43212518095970154},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.33640390634536743},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.13455185294151306}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8802951574325562},{"id":"https://openalex.org/C62230096","wikidata":"https://www.wikidata.org/wiki/Q275969","display_name":"Crowdsourcing","level":2,"score":0.7181046605110168},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.5686827301979065},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.49513664841651917},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.477505624294281},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.43212518095970154},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.33640390634536743},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.13455185294151306}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3391707","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3391707","pdf_url":null,"source":{"id":"https://openalex.org/S2492086750","display_name":"ACM Transactions on Intelligent Systems and Technology","issn_l":"2157-6904","issn":["2157-6904","2157-6912"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Intelligent Systems and Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","score":0.8199999928474426,"display_name":"Sustainable cities and communities"}],"awards":[{"id":"https://openalex.org/G2662071152","display_name":null,"funder_award_id":"No. 2017YFB1002804","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G8507612856","display_name":null,"funder_award_id":"No. 61472042, No.61802020","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/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1686810756","https://openalex.org/W2031475000","https://openalex.org/W2054733829","https://openalex.org/W2088510110","https://openalex.org/W2093685172","https://openalex.org/W2103004632","https://openalex.org/W2154131461","https://openalex.org/W2521595004","https://openalex.org/W2528639018","https://openalex.org/W2530386080","https://openalex.org/W2561892174","https://openalex.org/W2739883206","https://openalex.org/W2750413591","https://openalex.org/W2774095456","https://openalex.org/W2775249832","https://openalex.org/W2789249423","https://openalex.org/W2795138333","https://openalex.org/W2808554728","https://openalex.org/W2884090186","https://openalex.org/W2884934420","https://openalex.org/W2890533060","https://openalex.org/W2890723776","https://openalex.org/W2900349952","https://openalex.org/W2901291024","https://openalex.org/W2911978475","https://openalex.org/W2914761779","https://openalex.org/W2964332492","https://openalex.org/W4236965008","https://openalex.org/W4253665503","https://openalex.org/W4372267129"],"related_works":["https://openalex.org/W3032998312","https://openalex.org/W135177976","https://openalex.org/W4384486036","https://openalex.org/W1503094549","https://openalex.org/W2337920774","https://openalex.org/W4286908577","https://openalex.org/W2886410948","https://openalex.org/W2025875869","https://openalex.org/W4318823662","https://openalex.org/W3207526114"],"abstract_inverted_index":{"Acquiring":[0],"traffic":[1,18,46,75],"condition":[2],"information":[3],"is":[4,48,104,122,165],"of":[5,63,89,136,213,245,252],"great":[6],"significance":[7],"in":[8,85,183,199],"transportation":[9],"guidance,":[10],"urban":[11],"planning,":[12],"and":[13,101,126,133,150,195,249,261,264,268],"route":[14],"recommendation.":[15],"To":[16,67],"date,":[17],"density":[19,76],"data":[20,29,52,92,110,114,161,172,224,246,254],"are":[21,36,97],"generally":[22],"acquired":[23],"by":[24,53,93],"road":[25],"sound":[26],"analysis,":[27,30],"video":[28],"or":[31,39],"in-vehicle":[32],"network":[33],"communication,":[34],"which":[35,208],"usually":[37],"financially":[38],"temporally":[40],"expensive.":[41],"Another":[42],"way":[43,57],"to":[44,49,59,107,111,128,173],"get":[45],"conditions":[47],"collect":[50],"track":[51,91,193,206,223],"crowdsourcing.":[54],"However,":[55],"this":[56,71,140,184],"lead":[58],"a":[60,74],"greater":[61],"risk":[62],"leaking":[64],"users\u2019":[65,147,156,169],"privacy.":[66,215],"avoid":[68],"the":[69,86,90,109,113,130,142,151,168,176,196,200,204,210,222,226,237,243,250],"risk,":[70],"article":[72],"proposes":[73],"estimation":[77],"model":[78],"based":[79],"on":[80,167],"crowdsourcing":[81],"privacy":[82,255],"protection.":[83],"First,":[84],"acquisition":[87],"process":[88],"crowdsourcing,":[94],"dual":[95],"servers":[96,197],"employed":[98],"for":[99,124],"transmission,":[100,162],"homomorphic":[102,257],"encryption":[103],"carried":[105],"out":[106],"encrypt":[108],"protect":[112,175],"from":[115,225],"being":[116],"leaked":[117],"during":[118],"transmission.":[119],"Second,":[120],"sampling":[121],"implemented":[123],"randomization":[125],"anonymization":[127],"reduce":[129],"spatial":[131],"continuity":[132,135],"temporal":[134],"position":[137,171],"data.":[138],"In":[139],"way,":[141],"intermediate":[143],"server":[144,153],"cannot":[145,154,202],"acquire":[146],"original":[148,177,192,205],"data,":[149,194,207],"main":[152],"obtain":[155],"personal":[157],"information.":[158,179],"Finally,":[159],"before":[160],"Laplace":[163],"noising":[164],"performed":[166],"local":[170],"further":[174],"location":[178],"The":[180,216,232],"proposed":[181,217,238],"algorithm":[182,218,239],"study":[185],"realizes":[186],"that":[187,236],"only":[188],"users":[189],"have":[190],"their":[191],"involved":[198],"work":[201],"infer":[203],"ensures":[209],"real":[211],"security":[212,251],"user":[214,253],"was":[219],"verified":[220],"with":[221],"Didi":[227],"Gaia":[228],"Data":[229],"Opening":[230],"Plan.":[231],"experimental":[233],"results":[234,248],"showed":[235],"could":[240],"still":[241],"maintain":[242],"validity":[244],"analysis":[247],"after":[256],"encryption,":[258],"noise":[259],"addition,":[260],"sample":[262],"collection,":[263],"displayed":[265],"good":[266],"robustness":[267],"scalability.":[269]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1}],"updated_date":"2026-03-26T15:22:09.906841","created_date":"2025-10-10T00:00:00"}