{"id":"https://openalex.org/W1584794413","doi":"https://doi.org/10.1109/apsitt.2015.7217100","title":"A privacy-preserving collaborative filtering protocol considering updates","display_name":"A privacy-preserving collaborative filtering protocol considering updates","publication_year":2015,"publication_date":"2015-08-01","ids":{"openalex":"https://openalex.org/W1584794413","doi":"https://doi.org/10.1109/apsitt.2015.7217100","mag":"1584794413"},"language":"en","primary_location":{"id":"doi:10.1109/apsitt.2015.7217100","is_oa":false,"landing_page_url":"https://doi.org/10.1109/apsitt.2015.7217100","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 10th Asia-Pacific Symposium on Information and Telecommunication Technologies (APSITT)","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/A5051104185","display_name":"Yuji Mochizuki","orcid":null},"institutions":[{"id":"https://openalex.org/I116465919","display_name":"Kogakuin University","ror":"https://ror.org/01wc2tq75","country_code":"JP","type":"education","lineage":["https://openalex.org/I116465919"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Yuji Mochizuki","raw_affiliation_strings":["Department of Informatics, Kogakuin University, Tokyo, Japan","Department of Informatics Kogakuin University, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Informatics, Kogakuin University, Tokyo, Japan","institution_ids":["https://openalex.org/I116465919"]},{"raw_affiliation_string":"Department of Informatics Kogakuin University, Japan","institution_ids":["https://openalex.org/I116465919"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5012625317","display_name":"Yoshifumi Manabe","orcid":"https://orcid.org/0000-0002-6312-257X"},"institutions":[{"id":"https://openalex.org/I116465919","display_name":"Kogakuin University","ror":"https://ror.org/01wc2tq75","country_code":"JP","type":"education","lineage":["https://openalex.org/I116465919"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yoshifumi Manabe","raw_affiliation_strings":["Department of Informatics, Kogakuin University, Tokyo, Japan","Department of Informatics Kogakuin University, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Informatics, Kogakuin University, Tokyo, Japan","institution_ids":["https://openalex.org/I116465919"]},{"raw_affiliation_string":"Department of Informatics Kogakuin University, Japan","institution_ids":["https://openalex.org/I116465919"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5051104185"],"corresponding_institution_ids":["https://openalex.org/I116465919"],"apc_list":null,"apc_paid":null,"fwci":1.0749,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.84631365,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"1592","issue":null,"first_page":"1","last_page":"3"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11045","display_name":"Privacy, Security, and Data Protection","score":0.9944000244140625,"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"}},"topics":[{"id":"https://openalex.org/T11045","display_name":"Privacy, Security, and Data Protection","score":0.9944000244140625,"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"}},{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.991599977016449,"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/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9840999841690063,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.774198055267334},{"id":"https://openalex.org/keywords/similarity","display_name":"Similarity (geometry)","score":0.7573964595794678},{"id":"https://openalex.org/keywords/plaintext","display_name":"Plaintext","score":0.7311635613441467},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.7062527537345886},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.6368927359580994},{"id":"https://openalex.org/keywords/value","display_name":"Value (mathematics)","score":0.6316060423851013},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.5323057174682617},{"id":"https://openalex.org/keywords/constant","display_name":"Constant (computer programming)","score":0.4853152632713318},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.4060558080673218},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.19595834612846375},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.19294473528862},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.160955011844635},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.1565948724746704},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.1051393449306488}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.774198055267334},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.7573964595794678},{"id":"https://openalex.org/C92717368","wikidata":"https://www.wikidata.org/wiki/Q1162538","display_name":"Plaintext","level":3,"score":0.7311635613441467},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.7062527537345886},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.6368927359580994},{"id":"https://openalex.org/C2776291640","wikidata":"https://www.wikidata.org/wiki/Q2912517","display_name":"Value (mathematics)","level":2,"score":0.6316060423851013},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.5323057174682617},{"id":"https://openalex.org/C2777027219","wikidata":"https://www.wikidata.org/wiki/Q1284190","display_name":"Constant (computer programming)","level":2,"score":0.4853152632713318},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.4060558080673218},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.19595834612846375},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.19294473528862},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.160955011844635},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.1565948724746704},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.1051393449306488},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/apsitt.2015.7217100","is_oa":false,"landing_page_url":"https://doi.org/10.1109/apsitt.2015.7217100","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 10th Asia-Pacific Symposium on Information and Telecommunication Technologies (APSITT)","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.714.2668","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.714.2668","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.ns.kogakuin.ac.jp/%7Ewwa1056/mochizukiCF.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","score":0.6000000238418579,"display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1483086566","https://openalex.org/W2151385136","https://openalex.org/W2160855966","https://openalex.org/W2169101582","https://openalex.org/W6628932898"],"related_works":["https://openalex.org/W3014393615","https://openalex.org/W131178872","https://openalex.org/W2389818373","https://openalex.org/W2796850053","https://openalex.org/W237510953","https://openalex.org/W2362248139","https://openalex.org/W2165888085","https://openalex.org/W2389600025","https://openalex.org/W2076210137","https://openalex.org/W2984080994"],"abstract_inverted_index":{"This":[0],"paper":[1],"proposes":[2],"a":[3,12,22,37,100,117,179,195],"method":[4],"to":[5,41,70,80,106,116,126],"update":[6,81,107],"the":[7,50,65,72,82,104,108,132,150,160,163,169,182,185,192],"similarity":[8,18,83,109,133],"of":[9,19,46,110,120,134,140,153,162,165,181,184,198,205],"items":[10,20,30,48,111,135],"in":[11,114],"privacy":[13,62],"preserving":[14,33],"collaborative":[15,34],"filtering.":[16],"The":[17],"is":[21,36,78,90,96,99,157,171,189],"value":[23,45,89,95,142,156,187],"that":[24,39,149,177,188],"shows":[25],"how":[26],"similar":[27],"given":[28,49],"two":[29],"are.":[31],"Privacy":[32],"filtering":[35],"technique":[38],"helps":[40],"infer":[42],"an":[43,87,154,175],"evaluation":[44,53,66,75,88,94,121,141,155,166,186,206],"desired":[47],"other":[51],"users'":[52],"values":[54,167],"with":[55],"concealing":[56],"personal":[57],"information":[58],"for":[59,103,202],"each":[60,93,138,203],"user's":[61],"by":[63],"encrypting":[64],"values.":[67,122,207],"In":[68,144],"order":[69],"obtain":[71],"most":[73],"appropriate":[74],"value,":[76],"it":[77,98],"necessary":[79],"every":[84,112],"time":[85,113],"when":[86,128],"changed.":[91],"Since":[92],"encrypted,":[97],"heavy":[101],"burden":[102],"users":[105,170],"response":[115],"single":[118],"change":[119,180],"Thus":[123],"we":[124,129,147],"need":[125],"know":[127],"should":[130],"recalculate":[131],"while":[136],"keeping":[137],"renewal":[139,204],"secret.":[143],"this":[145],"paper,":[146],"show":[148,174],"estimation":[151],"error":[152,161],"small":[158],"if":[159],"average":[164,183],"between":[168],"small.":[172],"We":[173],"algorithm":[176],"detects":[178],"greater":[190],"than":[191],"preset,":[193],"using":[194],"constant":[196],"number":[197],"plaintext":[199],"equality":[200],"tests":[201]},"counts_by_year":[{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":3},{"year":2018,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
