{"id":"https://openalex.org/W2549241050","doi":"https://doi.org/10.1109/tdsc.2016.2631533","title":"Privacy-Preserving Friendship-Based Recommender Systems","display_name":"Privacy-Preserving Friendship-Based Recommender Systems","publication_year":2016,"publication_date":"2016-11-23","ids":{"openalex":"https://openalex.org/W2549241050","doi":"https://doi.org/10.1109/tdsc.2016.2631533","mag":"2549241050"},"language":"en","primary_location":{"id":"doi:10.1109/tdsc.2016.2631533","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tdsc.2016.2631533","pdf_url":null,"source":{"id":"https://openalex.org/S133795288","display_name":"IEEE Transactions on Dependable and Secure Computing","issn_l":"1545-5971","issn":["1545-5971","1941-0018","2160-9209"],"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 Dependable and Secure Computing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://orbilu.uni.lu/bitstream/10993/29366/1/1152.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5077863367","display_name":"Qiang Tang","orcid":"https://orcid.org/0000-0002-6153-4255"},"institutions":[{"id":"https://openalex.org/I186903577","display_name":"University of Luxembourg","ror":"https://ror.org/036x5ad56","country_code":"LU","type":"education","lineage":["https://openalex.org/I186903577"]}],"countries":["LU"],"is_corresponding":false,"raw_author_name":"Qiang Tang","raw_affiliation_strings":["SnT, University of Luxembourg, Luxembourg City, Luxembourg"],"raw_orcid":"https://orcid.org/0000-0002-6153-4255","affiliations":[{"raw_affiliation_string":"SnT, University of Luxembourg, Luxembourg City, Luxembourg","institution_ids":["https://openalex.org/I186903577"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100384682","display_name":"Jun Wang","orcid":"https://orcid.org/0000-0002-0926-4761"},"institutions":[{"id":"https://openalex.org/I186903577","display_name":"University of Luxembourg","ror":"https://ror.org/036x5ad56","country_code":"LU","type":"education","lineage":["https://openalex.org/I186903577"]}],"countries":["LU"],"is_corresponding":false,"raw_author_name":"Jun Wang","raw_affiliation_strings":["SnT, University of Luxembourg, Luxembourg City, Luxembourg"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"SnT, University of Luxembourg, Luxembourg City, Luxembourg","institution_ids":["https://openalex.org/I186903577"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I186903577"],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":5.5486,"has_fulltext":true,"cited_by_count":32,"citation_normalized_percentile":{"value":0.95872304,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"15","issue":"5","first_page":"784","last_page":"796"},"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/T10237","display_name":"Cryptography and Data Security","score":0.9997000098228455,"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":0.9975000023841858,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8703576326370239},{"id":"https://openalex.org/keywords/movielens","display_name":"MovieLens","score":0.8000286817550659},{"id":"https://openalex.org/keywords/protocol","display_name":"Protocol (science)","score":0.7017426490783691},{"id":"https://openalex.org/keywords/friendship","display_name":"Friendship","score":0.6036361455917358},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.5880177021026611},{"id":"https://openalex.org/keywords/service-provider","display_name":"Service provider","score":0.4694865345954895},{"id":"https://openalex.org/keywords/trusted-third-party","display_name":"Trusted third party","score":0.45934754610061646},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.43308025598526},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.42222869396209717},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.3429355025291443},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.3025669455528259},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.3021951913833618},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.10555201768875122}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8703576326370239},{"id":"https://openalex.org/C2776156558","wikidata":"https://www.wikidata.org/wiki/Q4353746","display_name":"MovieLens","level":4,"score":0.8000286817550659},{"id":"https://openalex.org/C2780385302","wikidata":"https://www.wikidata.org/wiki/Q367158","display_name":"Protocol (science)","level":3,"score":0.7017426490783691},{"id":"https://openalex.org/C2778736484","wikidata":"https://www.wikidata.org/wiki/Q491","display_name":"Friendship","level":2,"score":0.6036361455917358},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.5880177021026611},{"id":"https://openalex.org/C116537","wikidata":"https://www.wikidata.org/wiki/Q2169973","display_name":"Service provider","level":3,"score":0.4694865345954895},{"id":"https://openalex.org/C139089976","wikidata":"https://www.wikidata.org/wiki/Q2142273","display_name":"Trusted third party","level":2,"score":0.45934754610061646},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.43308025598526},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.42222869396209717},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.3429355025291443},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.3025669455528259},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.3021951913833618},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.10555201768875122},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","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},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tdsc.2016.2631533","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tdsc.2016.2631533","pdf_url":null,"source":{"id":"https://openalex.org/S133795288","display_name":"IEEE Transactions on Dependable and Secure Computing","issn_l":"1545-5971","issn":["1545-5971","1941-0018","2160-9209"],"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 Dependable and Secure Computing","raw_type":"journal-article"},{"id":"pmh:oai:orbilu.uni.lu:10993/29366","is_oa":true,"landing_page_url":"https://orbilu.uni.lu/handle/10993/29366","pdf_url":"https://orbilu.uni.lu/bitstream/10993/29366/1/1152.pdf","source":{"id":"https://openalex.org/S4306401815","display_name":"Open Repository and Bibliography (University of Luxembourg)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I186903577","host_organization_name":"University of Luxembourg","host_organization_lineage":["https://openalex.org/I186903577"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Transactions on Dependable and Secure Computing (2016-11); IEEE Transactions on Dependable and Secure Computing, 22-11-2016","raw_type":"http://purl.org/coar/resource_type/c_5794"}],"best_oa_location":{"id":"pmh:oai:orbilu.uni.lu:10993/29366","is_oa":true,"landing_page_url":"https://orbilu.uni.lu/handle/10993/29366","pdf_url":"https://orbilu.uni.lu/bitstream/10993/29366/1/1152.pdf","source":{"id":"https://openalex.org/S4306401815","display_name":"Open Repository and Bibliography (University of Luxembourg)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I186903577","host_organization_name":"University of Luxembourg","host_organization_lineage":["https://openalex.org/I186903577"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Transactions on Dependable and Secure Computing (2016-11); IEEE Transactions on Dependable and Secure Computing, 22-11-2016","raw_type":"http://purl.org/coar/resource_type/c_5794"},"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.4099999964237213,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320310700","display_name":"Universit\u00e9 du Luxembourg","ror":"https://ror.org/036x5ad56"},{"id":"https://openalex.org/F4320321038","display_name":"Fonds National de la Recherche Luxembourg","ror":"https://ror.org/039z13y21"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2549241050.pdf","grobid_xml":"https://content.openalex.org/works/W2549241050.grobid-xml"},"referenced_works_count":35,"referenced_works":["https://openalex.org/W153060711","https://openalex.org/W1483715664","https://openalex.org/W1494049356","https://openalex.org/W1497454515","https://openalex.org/W1886087434","https://openalex.org/W1988989489","https://openalex.org/W2009952684","https://openalex.org/W2020915469","https://openalex.org/W2022097286","https://openalex.org/W2025356718","https://openalex.org/W2026201826","https://openalex.org/W2031533839","https://openalex.org/W2043944888","https://openalex.org/W2083287929","https://openalex.org/W2109134141","https://openalex.org/W2111023939","https://openalex.org/W2123147099","https://openalex.org/W2152208379","https://openalex.org/W2152926062","https://openalex.org/W2159196732","https://openalex.org/W2167094273","https://openalex.org/W2169101582","https://openalex.org/W2187355422","https://openalex.org/W2233194383","https://openalex.org/W2242269286","https://openalex.org/W2287880243","https://openalex.org/W2294409705","https://openalex.org/W2949244864","https://openalex.org/W6606213646","https://openalex.org/W6629429546","https://openalex.org/W6629769705","https://openalex.org/W6639438251","https://openalex.org/W6686949184","https://openalex.org/W6695856656","https://openalex.org/W6729415205"],"related_works":["https://openalex.org/W2524663498","https://openalex.org/W2113380565","https://openalex.org/W2781850661","https://openalex.org/W4233347881","https://openalex.org/W3004286290","https://openalex.org/W2169020911","https://openalex.org/W4242809128","https://openalex.org/W2297964623","https://openalex.org/W2907069037","https://openalex.org/W2549064611"],"abstract_inverted_index":{"Privacy-preserving":[0],"recommender":[1,62],"systems":[2],"have":[3],"been":[4],"an":[5,22],"active":[6],"research":[7],"topic":[8],"for":[9],"many":[10],"years.":[11],"However,":[12,255],"until":[13],"today,":[14],"it":[15],"is":[16,40,247,253],"still":[17,198],"a":[18,27,86,96,134,188],"challenge":[19],"to":[20,148,201],"design":[21,133],"efficient":[23,249],"solution":[24],"without":[25],"involving":[26],"fully":[28],"trusted":[29],"third":[30,35],"party":[31],"or":[32,202],"multiple":[33],"semi-trusted":[34],"parties.":[36],"The":[37],"key":[38],"obstacle":[39],"the":[41,51,58,91,107,124,127,142,150,193,216,228,231,235,251,259,262,273],"large":[42],"underlying":[43],"user":[44,93],"populations":[45],"(i.e.,":[46],"huge":[47],"input":[48,236],"size)":[49],"in":[50],"systems.":[52],"In":[53,146],"this":[54],"paper,":[55],"we":[56,153,180,212,256,270],"revisit":[57],"concept":[59],"of":[60,90,126,141,192,218,225,227,261],"friendship-based":[61],"systems,":[63],"proposed":[64],"by":[65,114,118,138],"Jeckmans":[66],"et":[67],"al.":[68],"and":[69,71,99,111,116,122,156,161,173,230],"Tang":[70,115],"Wang.":[72],"These":[73],"solutions":[74],"are":[75,80,164],"very":[76,87,189,222],"promising":[77],"because":[78],"recommendations":[79],"computed":[81],"based":[82],"on":[83,171,209],"inputs":[84],"from":[85],"small":[88,190,223],"subset":[89,191],"overall":[92],"population":[94],"(precisely,":[95],"user's":[97],"friends":[98],"some":[100,120,205],"randomly":[101],"chosen":[102],"strangers).":[103],"We":[104,131,239],"first":[105],"clarify":[106],"single":[108,128,136,244],"prediction":[109,129,245],"protocol":[110,113,137,246,264],"Top-n":[112,252,263],"Wang,":[117],"correcting":[119],"flaws":[121],"improving":[123],"efficiency":[125,260],"protocol.":[130],"then":[132],"decentralized":[135],"getting":[139],"rid":[140],"semi-honest":[143],"service":[144],"provider.":[145],"order":[147],"validate":[149],"designed":[151],"protocols,":[152],"crawl":[154],"Twitter":[155],"construct":[157],"two":[158],"datasets":[159],"(FMT":[160],"10-FMT)":[162],"which":[163],"equipped":[165],"with":[166,177],"auxiliary":[167],"friendship":[168],"information.":[169],"Based":[170,208],"10-FMT":[172],"MovieLens":[174],"100k":[175],"dataset":[176],"simulated":[178],"friendships,":[179],"show":[181,241],"that":[182,215,242,258],"even":[183],"if":[184,269],"our":[185,219],"protocols":[186,220],"use":[187],"datasets,":[194,211],"their":[195],"accuracy":[196],"can":[197,265],"be":[199,266],"equal":[200],"better":[203],"than":[204],"baseline":[206],"algorithm.":[207],"these":[210],"further":[213],"demonstrate":[214],"outputs":[217],"leak":[221],"amount":[224],"information":[226],"inputs,":[229],"leakage":[232],"decreases":[233],"when":[234],"size":[237],"increases.":[238],"finally":[240],"he":[243],"quite":[248],"but":[250],"not.":[254],"observe":[257],"dramatically":[267],"improved":[268],"slightly":[271],"relax":[272],"desired":[274],"security":[275],"guarantee.":[276]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":7},{"year":2017,"cited_by_count":2}],"updated_date":"2026-08-29T07:29:34.045763","created_date":"2025-10-10T00:00:00"}
