{"id":"https://openalex.org/W2083287929","doi":"https://doi.org/10.1145/2792838.2800173","title":"Applying Differential Privacy to Matrix Factorization","display_name":"Applying Differential Privacy to Matrix Factorization","publication_year":2015,"publication_date":"2015-09-08","ids":{"openalex":"https://openalex.org/W2083287929","doi":"https://doi.org/10.1145/2792838.2800173","mag":"2083287929"},"language":"en","primary_location":{"id":"doi:10.1145/2792838.2800173","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2792838.2800173","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 9th ACM Conference on Recommender Systems","raw_type":"proceedings-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/A5075439673","display_name":"Arnaud Berlioz","orcid":null},"institutions":[{"id":"https://openalex.org/I42894916","display_name":"Data61","ror":"https://ror.org/03q397159","country_code":"AU","type":"other","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I42894916","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":true,"raw_author_name":"Arnaud Berlioz","raw_affiliation_strings":["NICTA, Sydney, Australia"],"affiliations":[{"raw_affiliation_string":"NICTA, Sydney, Australia","institution_ids":["https://openalex.org/I42894916"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001070512","display_name":"Arik Friedman","orcid":"https://orcid.org/0000-0002-4978-9407"},"institutions":[{"id":"https://openalex.org/I42894916","display_name":"Data61","ror":"https://ror.org/03q397159","country_code":"AU","type":"other","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I42894916","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Arik Friedman","raw_affiliation_strings":["NICTA, Sydney, Australia"],"affiliations":[{"raw_affiliation_string":"NICTA, Sydney, Australia","institution_ids":["https://openalex.org/I42894916"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040251515","display_name":"Mohamed Ali K\u00e2afar","orcid":"https://orcid.org/0000-0003-2714-0276"},"institutions":[{"id":"https://openalex.org/I42894916","display_name":"Data61","ror":"https://ror.org/03q397159","country_code":"AU","type":"other","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I42894916","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Mohamed Ali Kaafar","raw_affiliation_strings":["NICTA, Sydney, Australia"],"affiliations":[{"raw_affiliation_string":"NICTA, Sydney, Australia","institution_ids":["https://openalex.org/I42894916"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070270594","display_name":"Roksana Boreli","orcid":null},"institutions":[{"id":"https://openalex.org/I42894916","display_name":"Data61","ror":"https://ror.org/03q397159","country_code":"AU","type":"other","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I42894916","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Roksana Boreli","raw_affiliation_strings":["NICTA, Sydney, Australia"],"affiliations":[{"raw_affiliation_string":"NICTA, Sydney, Australia","institution_ids":["https://openalex.org/I42894916"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047191996","display_name":"Shlomo Berkovsky","orcid":"https://orcid.org/0000-0003-2638-4121"},"institutions":[{"id":"https://openalex.org/I1292875679","display_name":"Commonwealth Scientific and Industrial Research Organisation","ror":"https://ror.org/03qn8fb07","country_code":"AU","type":"funder","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Shlomo Berkovsky","raw_affiliation_strings":["CSIRO, Marsfield, Australia"],"affiliations":[{"raw_affiliation_string":"CSIRO, Marsfield, Australia","institution_ids":["https://openalex.org/I1292875679"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5075439673"],"corresponding_institution_ids":["https://openalex.org/I42894916"],"apc_list":null,"apc_paid":null,"fwci":11.5727,"has_fulltext":false,"cited_by_count":118,"citation_normalized_percentile":{"value":0.98422293,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"107","last_page":"114"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9995999932289124,"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":0.9995999932289124,"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":0.9943000078201294,"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/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9789000153541565,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"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/differential-privacy","display_name":"Differential privacy","score":0.9427231550216675},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.803076982498169},{"id":"https://openalex.org/keywords/matrix-decomposition","display_name":"Matrix decomposition","score":0.6853445172309875},{"id":"https://openalex.org/keywords/privacy-software","display_name":"Privacy software","score":0.6558622717857361},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.6171325445175171},{"id":"https://openalex.org/keywords/factorization","display_name":"Factorization","score":0.6103162169456482},{"id":"https://openalex.org/keywords/information-privacy","display_name":"Information privacy","score":0.527458906173706},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.44863882660865784},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.36960524320602417},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.32833191752433777},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.25943535566329956},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.23244014382362366}],"concepts":[{"id":"https://openalex.org/C23130292","wikidata":"https://www.wikidata.org/wiki/Q5275358","display_name":"Differential privacy","level":2,"score":0.9427231550216675},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.803076982498169},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.6853445172309875},{"id":"https://openalex.org/C509729295","wikidata":"https://www.wikidata.org/wiki/Q7246032","display_name":"Privacy software","level":3,"score":0.6558622717857361},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.6171325445175171},{"id":"https://openalex.org/C187834632","wikidata":"https://www.wikidata.org/wiki/Q188804","display_name":"Factorization","level":2,"score":0.6103162169456482},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.527458906173706},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.44863882660865784},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.36960524320602417},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.32833191752433777},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.25943535566329956},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.23244014382362366},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"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/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2792838.2800173","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2792838.2800173","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 9th ACM Conference on Recommender Systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16","score":0.550000011920929}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1523420801","https://openalex.org/W1553243659","https://openalex.org/W1873763122","https://openalex.org/W1975825542","https://openalex.org/W2022097286","https://openalex.org/W2054141820","https://openalex.org/W2108954244","https://openalex.org/W2109426455","https://openalex.org/W2119874464","https://openalex.org/W2121710227","https://openalex.org/W2122997783","https://openalex.org/W2123147099","https://openalex.org/W2141902405","https://openalex.org/W2159196732","https://openalex.org/W2167094273","https://openalex.org/W2169101582","https://openalex.org/W2226173891","https://openalex.org/W2280499829","https://openalex.org/W2950943617","https://openalex.org/W4244404635","https://openalex.org/W6684415778"],"related_works":["https://openalex.org/W2963185427","https://openalex.org/W2065296176","https://openalex.org/W2342498029","https://openalex.org/W4304208041","https://openalex.org/W4315488958","https://openalex.org/W1973739845","https://openalex.org/W3176515490","https://openalex.org/W4226426276","https://openalex.org/W3185918024","https://openalex.org/W3138333794"],"abstract_inverted_index":{"Recommender":[0],"systems":[1],"are":[2],"increasingly":[3],"becoming":[4],"an":[5,21],"integral":[6],"part":[7],"of":[8,24,30,65,118],"on-line":[9],"services.":[10],"As":[11],"the":[12,28,63,96,109],"recommendations":[13],"rely":[14],"on":[15],"personal":[16],"user":[17],"information,":[18],"there":[19],"is":[20],"inherent":[22],"loss":[23],"privacy":[25,46,66,78,90,119],"resulting":[26],"from":[27],"use":[29],"such":[31],"systems.":[32],"While":[33],"several":[34,85],"works":[35],"studied":[36],"privacy-enhanced":[37],"neighborhood-based":[38],"recommendations,":[39],"little":[40],"attention":[41],"has":[42],"been":[43],"paid":[44],"to":[45,91],"preserving":[47,67,79],"latent":[48],"factor":[49],"models,":[50],"like":[51],"those":[52],"represented":[53],"by":[54,70,100],"matrix":[55,68,92],"factorization":[56,69],"techniques.":[57],"In":[58],"this":[59],"paper,":[60],"we":[61],"address":[62],"problem":[64],"utilizing":[71],"differential":[72,89],"privacy,":[73],"a":[74,115],"rigorous":[75],"and":[76,83,94],"provable":[77],"method.":[80],"We":[81,103],"propose":[82],"study":[84],"approaches":[86],"for":[87],"applying":[88],"factorization,":[93],"evaluate":[95],"privacy-accuracy":[97],"trade-offs":[98],"offered":[99],"each":[101],"approach.":[102],"show":[104],"that":[105],"input":[106],"perturbation":[107],"yields":[108],"best":[110],"recommendation":[111],"accuracy,":[112],"while":[113],"guaranteeing":[114],"solid":[116],"level":[117],"protection.":[120]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":17},{"year":2022,"cited_by_count":11},{"year":2021,"cited_by_count":26},{"year":2020,"cited_by_count":9},{"year":2019,"cited_by_count":10},{"year":2018,"cited_by_count":7},{"year":2017,"cited_by_count":10},{"year":2016,"cited_by_count":8},{"year":2015,"cited_by_count":1}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}