{"id":"https://openalex.org/W3166939522","doi":"https://doi.org/10.1109/tit.2021.3087425","title":"Capacity-Achieving Private Information Retrieval Schemes From Uncoded Storage Constrained Servers With Low Sub-Packetization","display_name":"Capacity-Achieving Private Information Retrieval Schemes From Uncoded Storage Constrained Servers With Low Sub-Packetization","publication_year":2021,"publication_date":"2021-06-08","ids":{"openalex":"https://openalex.org/W3166939522","doi":"https://doi.org/10.1109/tit.2021.3087425","mag":"3166939522"},"language":"en","primary_location":{"id":"doi:10.1109/tit.2021.3087425","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2021.3087425","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"is_oa":false,"is_in_doaj":false,"is_core":true,"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Information Theory","raw_type":"journal-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/A5051259190","display_name":"Jinbao Zhu","orcid":"https://orcid.org/0000-0001-8088-0076"},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinbao Zhu","raw_affiliation_strings":["Information Security and National Computing Grid Laboratory, Southwest Jiaotong University, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0001-8088-0076","affiliations":[{"raw_affiliation_string":"Information Security and National Computing Grid Laboratory, Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035654256","display_name":"Qifa Yan","orcid":"https://orcid.org/0000-0002-0746-9819"},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qifa Yan","raw_affiliation_strings":["Information Security and National Computing Grid Laboratory, Southwest Jiaotong University, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0002-0746-9819","affiliations":[{"raw_affiliation_string":"Information Security and National Computing Grid Laboratory, Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029840191","display_name":"Xiaohu Tang","orcid":"https://orcid.org/0000-0002-7938-7812"},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaohu Tang","raw_affiliation_strings":["Information Security and National Computing Grid Laboratory, Southwest Jiaotong University, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0002-7938-7812","affiliations":[{"raw_affiliation_string":"Information Security and National Computing Grid Laboratory, Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5000790951","display_name":"Ying Miao","orcid":"https://orcid.org/0000-0002-9086-8668"},"institutions":[{"id":"https://openalex.org/I146399215","display_name":"University of Tsukuba","ror":"https://ror.org/02956yf07","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ying Miao","raw_affiliation_strings":["Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, Japan"],"raw_orcid":"https://orcid.org/0000-0002-9086-8668","affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, Japan","institution_ids":["https://openalex.org/I146399215"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.6522,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.70278446,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"67","issue":"8","first_page":"5370","last_page":"5386"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11478","display_name":"Caching and Content Delivery","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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":0.9994000196456909,"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/T11181","display_name":"Advanced Data Storage Technologies","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/server","display_name":"Server","score":0.7901651263237},{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.6530672311782837},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5800386667251587},{"id":"https://openalex.org/keywords/file-size","display_name":"File size","score":0.5236679911613464},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4669555127620697},{"id":"https://openalex.org/keywords/private-information-retrieval","display_name":"Private information retrieval","score":0.4253907799720764},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.1379549205303192}],"concepts":[{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.7901651263237},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.6530672311782837},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5800386667251587},{"id":"https://openalex.org/C2776029614","wikidata":"https://www.wikidata.org/wiki/Q1146367","display_name":"File size","level":2,"score":0.5236679911613464},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4669555127620697},{"id":"https://openalex.org/C99221444","wikidata":"https://www.wikidata.org/wiki/Q1532069","display_name":"Private information retrieval","level":2,"score":0.4253907799720764},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.1379549205303192},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tit.2021.3087425","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2021.3087425","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"is_oa":false,"is_in_doaj":false,"is_core":true,"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Information Theory","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G264294394","display_name":null,"funder_award_id":"61941106","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3638416840","display_name":"\u9ad8\u6027\u80fd\u3001\u4f4e\u590d\u6742\u5ea6\u7684\u7f16\u7801\u7f13\u5b58\u5173\u952e\u6280\u672f\u7814\u7a76","funder_award_id":"61871331","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6046513308","display_name":"Analysis and Construction of Combinatorial Structures with Sparse Incidence Matrices","funder_award_id":"18H01133","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"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":45,"referenced_works":["https://openalex.org/W171567834","https://openalex.org/W1552623664","https://openalex.org/W1574024822","https://openalex.org/W1619839175","https://openalex.org/W1822223425","https://openalex.org/W1934398053","https://openalex.org/W1962818100","https://openalex.org/W1963094505","https://openalex.org/W1967703498","https://openalex.org/W1986070285","https://openalex.org/W1990395546","https://openalex.org/W2007725949","https://openalex.org/W2106248279","https://openalex.org/W2145355783","https://openalex.org/W2150307013","https://openalex.org/W2169897889","https://openalex.org/W2260085643","https://openalex.org/W2345761008","https://openalex.org/W2531251918","https://openalex.org/W2549939309","https://openalex.org/W2599749253","https://openalex.org/W2793858273","https://openalex.org/W2885836992","https://openalex.org/W2886411684","https://openalex.org/W2888580722","https://openalex.org/W2961382438","https://openalex.org/W2962692592","https://openalex.org/W2963098339","https://openalex.org/W2963294985","https://openalex.org/W2970151185","https://openalex.org/W2973612336","https://openalex.org/W2976957157","https://openalex.org/W3005755411","https://openalex.org/W3005832604","https://openalex.org/W3080270214","https://openalex.org/W3084711314","https://openalex.org/W3098870865","https://openalex.org/W3100195636","https://openalex.org/W3105958450","https://openalex.org/W3124990156","https://openalex.org/W3166939522","https://openalex.org/W6606989391","https://openalex.org/W6640747883","https://openalex.org/W6704865071","https://openalex.org/W6791020321"],"related_works":["https://openalex.org/W2388464034","https://openalex.org/W2533125852","https://openalex.org/W2140460949","https://openalex.org/W2105580438","https://openalex.org/W2057435755","https://openalex.org/W2018782216","https://openalex.org/W2949620858","https://openalex.org/W2770877918","https://openalex.org/W1989375655","https://openalex.org/W2150112053"],"abstract_inverted_index":{"This":[0],"paper":[1],"investigates":[2],"reducing":[3],"sub-packetization":[4,122,191,232,251],"of":[5,28,40,80,153,215,222,233,265],"capacity-achieving":[6,90,124,172,194,246],"schemes":[7,127,180,197],"for":[8,93,112,123,162,273],"uncoded":[9,61],"Storage":[10,156],"Constrained":[11],"Private":[12],"Information":[13],"Retrieval":[14],"(SC-PIR)":[15],"systems.":[16],"In":[17,271],"the":[18,38,41,50,56,76,103,120,131,163,178,188,231,234,250,266,274,279],"SC-PIR":[19,91,126,164,173,179,196,236,248],"system,":[20],"a":[21,89,94,150,213,224,260],"user":[22],"aims":[23],"to":[24,44,69,133,141,205,290],"download":[25],"one":[26,268],"out":[27],"K":[29,51],"files":[30,52],"from":[31],"N":[32,57],"servers":[33,58,111],"while":[34],"revealing":[35],"nothing":[36],"about":[37],"identity":[39],"requested":[42],"file":[43],"any":[45,167],"individual":[46],"server,":[47],"in":[48,59,269],"which":[49,137,209],"are":[53,105,185],"stored":[54,106],"at":[55,108],"an":[60,134,170],"form":[62],"and":[63,99,258],"each":[64,81],"server":[65],"can":[66],"store":[67],"up":[68],"\u03bcK":[70],"equivalent":[71],"files,":[72],"where":[73,230,278],"\u03bc":[74,113],"is":[75,128,138,160,175,203,210,228,238,252],"normalized":[77],"storage":[78,96],"capacity":[79],"server.":[82],"We":[83],"first":[84],"prove":[85],"that":[86,115,181],"there":[87],"exists":[88],"scheme":[92,174,237],"given":[95,168],"design":[97],"if":[98,101],"only":[100],"all":[102,193,245],"packets":[104,184],"exactly":[107],"M\\triangleq":[109],"\u03bcN":[110],"such":[114],"M=\u03bcN":[116],"\u2208":[117],"{2,3,...,N}.":[118],"Then,":[119],"optimal":[121,189,253,267],"linear":[125,195,247],"characterized":[129,198],"as":[130],"solution":[132],"optimization":[135],"problem,":[136],"typically":[139],"hard":[140],"solve":[142],"since":[143],"it":[144],"involves":[145],"non-continuous":[146],"indicator":[147],"functions.":[148],"Moreover,":[149],"new":[151],"notion":[152],"array":[154],"called":[155],"Design":[157],"Array":[158],"(SDA)":[159],"introduced":[161],"system.":[165],"With":[166],"SDA,":[169],"associated":[171,235],"constructed.":[176],"Next,":[177],"have":[182],"equal-size":[183,190],"investigated.":[186],"Furthermore,":[187],"among":[192],"by":[199,212,218,241],"Woolsey":[200],"et":[201],"al.":[202],"proved":[204],"be":[206],"\\frac":[207,242,263],"N(M-1)gcd(N,M),":[208],"achieved":[211],"construction":[214,227,289],"SDA.":[216],"Finally,":[217],"allowing":[219],"unequal":[220],"size":[221],"packets,":[223],"greedy":[225],"SDA":[226,288],"proposed,":[229],"upper":[239],"bounded":[240],"N(M-1)gcd(N,M).":[243],"Among":[244],"schemes,":[249],"when":[254],"min{M,N-M}|N":[255],"or":[256],"M=N,":[257],"within":[259],"multiplicative":[261],"gap":[262],"min{M,N-M}gcd(N,M)":[264],"general.":[270],"particular,":[272],"special":[275],"case":[276],"N=d\u00b7M\u00b11":[277],"positive":[280],"integer":[281],"d":[282],"\u2265":[283],"2,":[284],"we":[285],"propose":[286],"another":[287],"obtain":[291],"lower":[292],"sub-packetization.":[293]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":1}],"updated_date":"2026-08-12T21:12:35.861297","created_date":"2025-10-10T00:00:00"}
