{"id":"https://openalex.org/W4407098374","doi":"https://doi.org/10.23919/isita60732.2024.10858280","title":"Necessary and Sufficient Conditions for Capacity-Achieving Private Information Retrieval and Its Construction Method","display_name":"Necessary and Sufficient Conditions for Capacity-Achieving Private Information Retrieval and Its Construction Method","publication_year":2024,"publication_date":"2024-11-10","ids":{"openalex":"https://openalex.org/W4407098374","doi":"https://doi.org/10.23919/isita60732.2024.10858280"},"language":"en","primary_location":{"id":"doi:10.23919/isita60732.2024.10858280","is_oa":false,"landing_page_url":"https://doi.org/10.23919/isita60732.2024.10858280","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 International Symposium on Information Theory and Its Applications (ISITA)","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/A5021522402","display_name":"Atsushi Miki","orcid":"https://orcid.org/0000-0002-2908-0177"},"institutions":[{"id":"https://openalex.org/I150744194","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Atsushi Miki","raw_affiliation_strings":["Waseda University,Faculty of Science and Engineering,Tokyo,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Waseda University,Faculty of Science and Engineering,Tokyo,Japan","institution_ids":["https://openalex.org/I150744194"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109708071","display_name":"Yusuke Morishita","orcid":null},"institutions":[{"id":"https://openalex.org/I150744194","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusuke Morishita","raw_affiliation_strings":["Waseda University,Faculty of Science and Engineering,Tokyo,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Waseda University,Faculty of Science and Engineering,Tokyo,Japan","institution_ids":["https://openalex.org/I150744194"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110471799","display_name":"Toshiyasu Matsushima","orcid":null},"institutions":[{"id":"https://openalex.org/I150744194","display_name":"Waseda University","ror":"https://ror.org/00ntfnx83","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toshiyasu Matsushima","raw_affiliation_strings":["Waseda University,Faculty of Science and Engineering,Tokyo,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Waseda University,Faculty of Science and Engineering,Tokyo,Japan","institution_ids":["https://openalex.org/I150744194"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.22942355,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"395","last_page":"400"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9448000192642212,"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/T10237","display_name":"Cryptography and Data Security","score":0.9448000192642212,"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":0.6562354564666748},{"id":"https://openalex.org/keywords/private-information-retrieval","display_name":"Private information retrieval","score":0.48354125022888184},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.4056156575679779},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.18053826689720154}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6562354564666748},{"id":"https://openalex.org/C99221444","wikidata":"https://www.wikidata.org/wiki/Q1532069","display_name":"Private information retrieval","level":2,"score":0.48354125022888184},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.4056156575679779},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.18053826689720154}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.23919/isita60732.2024.10858280","is_oa":false,"landing_page_url":"https://doi.org/10.23919/isita60732.2024.10858280","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 International Symposium on Information Theory and Its Applications (ISITA)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W2599749253","https://openalex.org/W2768218911","https://openalex.org/W2808769206","https://openalex.org/W2809388578","https://openalex.org/W2898111259","https://openalex.org/W2902494461","https://openalex.org/W2963360430","https://openalex.org/W2963788456","https://openalex.org/W2963898134","https://openalex.org/W2964058383","https://openalex.org/W2964077149","https://openalex.org/W2965859926","https://openalex.org/W2982008584","https://openalex.org/W3010011586","https://openalex.org/W3044113996","https://openalex.org/W3046264682","https://openalex.org/W3093360177","https://openalex.org/W4205173135"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"Private":[0],"Information":[1],"Retrieval":[2],"(PIR)":[3],"is":[4,52],"a":[5,48,84],"mechanism":[6],"for":[7,72],"efficiently":[8],"downloading":[9],"messages":[10],"while":[11],"keeping":[12],"the":[13,31,56,59,67,90],"index":[14],"secret.":[15],"The":[16],"information-theoretic":[17],"upper":[18],"bound":[19],"on":[20],"efficiency":[21],"has":[22],"been":[23],"proved":[24],"in":[25,37,44,78],"previous":[26],"studies;":[27],"PIR":[28,73,85],"properties":[29,57],"and":[30,41,69,75],"proofs":[32],"of":[33,39,58],"capacity":[34],"were":[35],"notated":[36],"terms":[38],"entropy":[40],"probability.":[42],"However,":[43],"order":[45],"to":[46,54],"construct":[47],"linear":[49],"PIR,":[50],"it":[51],"necessary":[53,68],"clarify":[55],"query":[60],"matrix.":[61],"In":[62],"this":[63],"study,":[64],"we":[65],"prove":[66],"sufficient":[70],"conditions":[71],"properties,":[74],"represent":[76],"them":[77],"matrix":[79],"form.":[80],"We":[81],"also":[82],"show":[83],"construction":[86],"method":[87],"that":[88],"satisfies":[89],"conditions.":[91]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
