{"id":"https://openalex.org/W3216645980","doi":"https://doi.org/10.23919/jcc.2021.11.004","title":"Privacy-preserving collaborative filtering algorithm based on local differential privacy","display_name":"Privacy-preserving collaborative filtering algorithm based on local differential privacy","publication_year":2021,"publication_date":"2021-11-01","ids":{"openalex":"https://openalex.org/W3216645980","doi":"https://doi.org/10.23919/jcc.2021.11.004","mag":"3216645980"},"language":"en","primary_location":{"id":"doi:10.23919/jcc.2021.11.004","doi":"https://doi.org/10.23919/jcc.2021.11.004","is_oa":false,"landing_page_url":"https://doi.org/10.23919/jcc.2021.11.004","pdf_url":null,"source":{"id":"https://openalex.org/S159450355","display_name":"China Communications","issn_l":"1673-5447","issn":["1673-5447"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"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":"China Communications","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5002324352","display_name":"Ting Bao","orcid":"https://orcid.org/0000-0003-3026-1124","observed_orcids":["https://orcid.org/0000-0003-3026-1124"]},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ting Bao","raw_affiliation_strings":["School of Computer Science and Technology, Beijing Institute of Technology, Beijing 100081, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Beijing Institute of Technology, Beijing 100081, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100781025","display_name":"Lei Xu","orcid":"https://orcid.org/0000-0001-6435-6055","observed_orcids":["https://orcid.org/0000-0001-6435-6055"]},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lei Xu","raw_affiliation_strings":["School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100634361","display_name":"Liehuang Zhu","orcid":"https://orcid.org/0000-0003-3277-3887","observed_orcids":["https://orcid.org/0000-0003-3277-3887"]},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Liehuang Zhu","raw_affiliation_strings":["School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100443578","display_name":"Lihong Wang","orcid":"https://orcid.org/0000-0003-0179-2364","observed_orcids":["https://orcid.org/0000-0003-0179-2364"]},"institutions":[{"id":"https://openalex.org/I4210087772","display_name":"National Computer Network Emergency Response Technical Team/Coordination Center of Chinar","ror":"https://ror.org/00247dh76","country_code":"CN","type":"nonprofit","lineage":["https://openalex.org/I4210087772"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lihong Wang","raw_affiliation_strings":["National Computer Network Emergency Response Technical Team/Coordination Center of China, Beijing 100029, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Computer Network Emergency Response Technical Team/Coordination Center of China, Beijing 100029, China","institution_ids":["https://openalex.org/I4210087772"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053414563","display_name":"Ruiguang Li","orcid":"https://orcid.org/0009-0000-5269-7274","observed_orcids":["https://orcid.org/0009-0000-5269-7274"]},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]},{"id":"https://openalex.org/I4210087772","display_name":"National Computer Network Emergency Response Technical Team/Coordination Center of Chinar","ror":"https://ror.org/00247dh76","country_code":"CN","type":"nonprofit","lineage":["https://openalex.org/I4210087772"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruiguang Li","raw_affiliation_strings":["School of Computer Science and Technology, Beijing Institute of Technology, Beijing 100081, China; National Computer Network Emergency Response Technical Team/Coordination Center of China, Beijing 100029, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Beijing Institute of Technology, Beijing 100081, China; National Computer Network Emergency Response Technical Team/Coordination Center of China, Beijing 100029, China","institution_ids":["https://openalex.org/I125839683","https://openalex.org/I4210087772"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048566501","display_name":"Tielei Li","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tielei Li","raw_affiliation_strings":["China International Engineering Consulting Corporation, Beijing 100048, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"China International Engineering Consulting Corporation, Beijing 100048, China","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.8762,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.75070618,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":98},"biblio":{"volume":"18","issue":"11","first_page":"42","last_page":"60"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9990000128746033,"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":0.9990000128746033,"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/T10203","display_name":"Recommender Systems and Techniques","score":0.0005000000237487257,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T11045","display_name":"Privacy, Security, and Data Protection","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/local-differential-privacy","display_name":"local differential privacy","score":0.8550000190734863},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"collaborative filtering","score":0.9760000109672546},{"id":"https://openalex.org/keywords/mobile-edge-computing","display_name":"mobile edge computing","score":0.7630000114440918},{"id":"https://openalex.org/keywords/recommender-systems","display_name":"recommender systems","score":0.7549999952316284},{"id":"https://openalex.org/keywords/user-privacy-preservation","display_name":"user privacy preservation","score":0.6980000138282776},{"id":"https://openalex.org/keywords/data-perturbation","display_name":"data perturbation","score":0.8610000014305115},{"id":"https://openalex.org/keywords/cloud-edge-collaboration","display_name":"cloud-edge collaboration","score":0.4690000116825104}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8869295716285706},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.8252919912338257},{"id":"https://openalex.org/C23130292","wikidata":"https://www.wikidata.org/wiki/Q5275358","display_name":"Differential privacy","level":2,"score":0.8110669255256653},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.6615029573440552},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.6541203260421753},{"id":"https://openalex.org/C2778456923","wikidata":"https://www.wikidata.org/wiki/Q5337692","display_name":"Edge computing","level":3,"score":0.5011465549468994},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.4711790382862091},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.4690796732902527},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.4588381350040436},{"id":"https://openalex.org/C153740404","wikidata":"https://www.wikidata.org/wiki/Q671224","display_name":"Data center","level":2,"score":0.4585454761981964},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.41169998049736023},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.38726097345352173},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3529881238937378},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.25497281551361084},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.18492791056632996},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.17727655172348022},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.23919/jcc.2021.11.004","doi":"https://doi.org/10.23919/jcc.2021.11.004","is_oa":false,"landing_page_url":"https://doi.org/10.23919/jcc.2021.11.004","pdf_url":null,"source":{"id":"https://openalex.org/S159450355","display_name":"China Communications","issn_l":"1673-5447","issn":["1673-5447"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"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":"China Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4320915402","https://openalex.org/W4387571375","https://openalex.org/W7011136048","https://openalex.org/W2993027817","https://openalex.org/W4285268639","https://openalex.org/W3134271114","https://openalex.org/W4381744257","https://openalex.org/W3036119971","https://openalex.org/W7164813512","https://openalex.org/W2789607830"],"abstract_inverted_index":{"Mobile":[0],"edge":[1,14,57,107,110,137],"computing":[2,11,114,123,133],"(MEC)":[3],"is":[4,155],"an":[5],"emerging":[6],"technolohgy":[7],"that":[8,81,192],"extends":[9],"cloud":[10,122],"to":[12,22,31,87,99,105,145,159,167,177],"the":[13,37,56,60,91,106,118,126,132,152,161,169,193],"of":[15,25,40,163,171],"a":[16,23,44,78,141],"network.":[17],"MEC":[18,28],"has":[19],"been":[20],"applied":[21],"variety":[24],"services.":[26],"Specially,":[27],"can":[29],"help":[30],"reduce":[32],"network":[33],"delay":[34],"and":[35,53,102,183],"improve":[36],"service":[38],"quality":[39],"recommendation":[41,46,79,202],"systems.":[42],"In":[43,90],"MEC-based":[45],"system,":[47],"users'":[48,67,94,180],"rating":[49,95,149,181,184],"data":[50,96,142,190],"are":[51,97],"collected":[52],"analyzed":[54],"by":[55,116,130,136],"servers.":[58,108,138],"If":[59],"servers":[61,111],"behave":[62],"dishonestly":[63],"or":[64],"break":[65],"down,":[66],"privacy":[68,85],"may":[69],"be":[70],"disclosed.":[71],"To":[72],"solve":[73],"this":[74],"issue,":[75],"we":[76,173],"design":[77],"framework":[80],"applies":[82],"local":[83],"differential":[84],"(LDP)":[86],"collaborative":[88],"filtering.":[89],"proposed":[92,194],"framework,":[93],"perturbed":[98,119],"satisfy":[100],"LDP":[101],"then":[103],"released":[104],"The":[109,121],"perform":[112,196],"partial":[113],"task":[115],"using":[117,131],"data.":[120],"center":[124],"computes":[125],"similarity":[127,164],"between":[128],"items":[129],"results":[134,187],"generated":[135],"We":[139],"propose":[140,174],"perturbation":[143],"method":[144],"protect":[146,178],"user's":[147],"original":[148],"values,":[150],"where":[151],"Harmony":[153],"mechanism":[154],"modified":[156],"so":[157],"as":[158],"preserve":[160],"accuracy":[162],"computation.":[165],"And":[166],"enhance":[168],"protection":[170],"privacy,":[172],"two":[175],"methods":[176,195],"both":[179],"values":[182],"behaviors.":[185],"Experimental":[186],"on":[188],"real-world":[189],"demonstrate":[191],"better":[197],"than":[198],"existing":[199],"differentially":[200],"private":[201],"methods.":[203]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":6}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2021-12-06T00:00:00"}
