{"id":"https://openalex.org/W4200416645","doi":"https://doi.org/10.1109/nana53684.2021.00086","title":"Cold-start Recommendation Method Based on Homomorphic Encryption","display_name":"Cold-start Recommendation Method Based on Homomorphic Encryption","publication_year":2021,"publication_date":"2021-10-01","ids":{"openalex":"https://openalex.org/W4200416645","doi":"https://doi.org/10.1109/nana53684.2021.00086"},"language":"en","primary_location":{"id":"doi:10.1109/nana53684.2021.00086","doi":"https://doi.org/10.1109/nana53684.2021.00086","is_oa":false,"landing_page_url":"https://doi.org/10.1109/nana53684.2021.00086","pdf_url":null,"source":{"id":"https://openalex.org/S4363608588","display_name":"International Conference on Networking and Network Applications (NaNA)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 International Conference on Networking and Network Applications (NaNA)","raw_type":"proceedings-article"},"parent_works":[],"lineage":["https://openalex.org/W4200416645"],"child_works_count":0,"type":"conference-paper","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/A5065109975","display_name":"Tianci Zhou","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tianci Zhou","raw_affiliation_strings":["School of Cyber Engineering, Xidian University, Xi\u2019an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyber Engineering, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101932355","display_name":"Yong Zeng","orcid":"https://orcid.org/0000-0003-2551-7009","observed_orcids":["https://orcid.org/0000-0003-2551-7009","https://orcid.org/0000-0002-3670-0434"]},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yong Zeng","raw_affiliation_strings":["School of Cyber Engineering, Xidian University, Xi\u2019an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyber Engineering, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100459837","display_name":"Yixin Li","orcid":"https://orcid.org/0000-0002-0866-2477","observed_orcids":["https://orcid.org/0000-0002-0866-2477","https://orcid.org/0009-0006-6545-0901"]},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yixin Li","raw_affiliation_strings":["School of Cyber Engineering, Xidian University, Xi\u2019an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyber Engineering, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014861105","display_name":"Zhongyuan Jiang","orcid":"https://orcid.org/0000-0001-8249-9711","observed_orcids":["https://orcid.org/0000-0001-8249-9711"]},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhongyuan Jiang","raw_affiliation_strings":["School of Cyber Engineering, Xidian University, Xi\u2019an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyber Engineering, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100328498","display_name":"Zhihong Liu","orcid":"https://orcid.org/0000-0002-2734-0246","observed_orcids":["https://orcid.org/0000-0002-2734-0246"]},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhihong Liu","raw_affiliation_strings":["School of Cyber Engineering, Xidian University, Xi\u2019an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyber Engineering, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5020227658","display_name":"Teng Li","orcid":"https://orcid.org/0000-0001-5147-8336","observed_orcids":["https://orcid.org/0000-0001-5147-8336","https://orcid.org/0009-0005-6686-1131"]},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Teng Li","raw_affiliation_strings":["School of Cyber Engineering, Xidian University, Xi\u2019an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyber Engineering, Xidian University, Xi\u2019an, China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":0.5024,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.55304481,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"461","last_page":"465"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":1.0,"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/T14435","display_name":"Information Retrieval and Data Mining","score":0.0,"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":0.0,"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/cold-start","display_name":"cold start","score":0.9769999980926514},{"id":"https://openalex.org/keywords/recommender-systems","display_name":"recommender systems","score":0.8579999804496765},{"id":"https://openalex.org/keywords/homomorphic-encryption","display_name":"homomorphic encryption","score":0.9959999918937683},{"id":"https://openalex.org/keywords/matrix-factorization","display_name":"matrix factorization","score":0.8119999766349792},{"id":"https://openalex.org/keywords/social-network-relationships","display_name":"social network relationships","score":0.7879999876022339},{"id":"https://openalex.org/keywords/user-privacy","display_name":"user privacy","score":0.492000013589859},{"id":"https://openalex.org/keywords/paillier-cryptosystem","display_name":"Paillier cryptosystem","score":0.847000002861023},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"collaborative filtering","score":0.515999972820282}],"concepts":[{"id":"https://openalex.org/C158338273","wikidata":"https://www.wikidata.org/wiki/Q2154943","display_name":"Homomorphic encryption","level":3,"score":0.8750778436660767},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.837216317653656},{"id":"https://openalex.org/C2778956030","wikidata":"https://www.wikidata.org/wiki/Q5142477","display_name":"Cold start (automotive)","level":2,"score":0.7505561113357544},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.6345818042755127},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.4513421058654785},{"id":"https://openalex.org/C4727928","wikidata":"https://www.wikidata.org/wiki/Q17164759","display_name":"Social network (sociolinguistics)","level":3,"score":0.4327861964702606},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.38422060012817383},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.3358945846557617},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.31276774406433105},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.13408106565475464},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.07366648316383362},{"id":"https://openalex.org/C518677369","wikidata":"https://www.wikidata.org/wiki/Q202833","display_name":"Social media","level":2,"score":0.06930956244468689},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/nana53684.2021.00086","doi":"https://doi.org/10.1109/nana53684.2021.00086","is_oa":false,"landing_page_url":"https://doi.org/10.1109/nana53684.2021.00086","pdf_url":null,"source":{"id":"https://openalex.org/S4363608588","display_name":"International Conference on Networking and Network Applications (NaNA)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 International Conference on Networking and Network Applications (NaNA)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W104209573","https://openalex.org/W1613613084","https://openalex.org/W1832221731","https://openalex.org/W1981868151","https://openalex.org/W2030808931","https://openalex.org/W2042281163","https://openalex.org/W2117420919","https://openalex.org/W2137028279","https://openalex.org/W2159094788","https://openalex.org/W2534885692","https://openalex.org/W2604334159","https://openalex.org/W2908770365","https://openalex.org/W2963146368","https://openalex.org/W3039645435","https://openalex.org/W3048212149","https://openalex.org/W3094484861","https://openalex.org/W3108769702","https://openalex.org/W3175192640","https://openalex.org/W4298358843"],"related_works":["https://openalex.org/W2811423811","https://openalex.org/W2406176316","https://openalex.org/W2735032239","https://openalex.org/W4414898705","https://openalex.org/W2164993238","https://openalex.org/W2527113903","https://openalex.org/W2901382255","https://openalex.org/W2132488407","https://openalex.org/W1908635827","https://openalex.org/W2572504723"],"abstract_inverted_index":{"Nowadays,":[0],"recommendation":[1,35,63,90],"systems":[2],"are":[3],"widely":[4],"used,":[5],"and":[6,48,70,119],"it":[7],"is":[8],"a":[9,60,135],"very":[10],"difficult":[11],"issue":[12],"to":[13,92,112],"solve":[14],"the":[15,22,30,34,76,89,94,105,114,131,139],"cold-start":[16,31,82,143],"problem.":[17],"Recent":[18],"studies":[19],"shows":[20,129],"that":[21,130],"introduction":[23],"of":[24,33,39,78,81,96,116,142],"social":[25,71],"network":[26],"relationships":[27],"can":[28],"alleviate":[29],"problem":[32,95],"system.":[36],"However,":[37],"some":[38,49],"these":[40],"algorithms":[41],"have":[42],"higher":[43],"requirements":[44],"for":[45,99],"implementation":[46],"scenarios,":[47],"cannot":[50],"guarantee":[51],"user":[52,83,117],"information":[53,80,98,118],"security.":[54],"In":[55,103],"our":[56],"study,":[57],"we":[58],"propose":[59],"matrix":[61],"factorization":[62],"system":[64,91],"method":[65,74,106,132],"based":[66],"on":[67,124],"homomorphic":[68,109],"encryption":[69,110],"network.":[72],"The":[73],"introduces":[75],"sum":[77],"preference":[79],"neighbors":[84],"as":[85],"prior":[86],"knowledge":[87],"into":[88],"solved":[93],"insufficient":[97],"cold":[100],"start":[101],"users.":[102,144],"addition,":[104],"uses":[107],"Pallier":[108],"algorithm":[111],"ensure":[113],"security":[115],"improve":[120],"computational":[121],"efficiency.":[122],"Experiments":[123],"three":[125],"real-world":[126],"data":[127],"sets":[128],"has":[133],"produced":[134],"significant":[136],"improvement":[137],"in":[138],"prediction":[140],"effect":[141]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2}],"updated_date":"2026-11-14T11:04:58.165337","created_date":"2021-12-31T00:00:00"}
