{"id":"https://openalex.org/W2339524574","doi":"https://doi.org/10.1109/tit.2016.2555813","title":"Optimal Locally Repairable Codes and Connections to Matroid Theory","display_name":"Optimal Locally Repairable Codes and Connections to Matroid Theory","publication_year":2016,"publication_date":"2016-04-21","ids":{"openalex":"https://openalex.org/W2339524574","doi":"https://doi.org/10.1109/tit.2016.2555813","mag":"2339524574"},"language":"en","primary_location":{"id":"doi:10.1109/tit.2016.2555813","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2016.2555813","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/A5085150941","display_name":"Itzhak Tamo","orcid":"https://orcid.org/0000-0002-8000-0419"},"institutions":[{"id":"https://openalex.org/I66946132","display_name":"University of Maryland, College Park","ror":"https://ror.org/047s2c258","country_code":"US","type":"education","lineage":["https://openalex.org/I66946132"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Itzhak Tamo","raw_affiliation_strings":["Department of Electronics and Communication Engineering, University of Maryland, College Park, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics and Communication Engineering, University of Maryland, College Park, MD, USA","institution_ids":["https://openalex.org/I66946132"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018630988","display_name":"Dimitris Papailiopoulos","orcid":null},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dimitris S. Papailiopoulos","raw_affiliation_strings":["Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014141359","display_name":"Alexandros G. Dimakis","orcid":"https://orcid.org/0000-0002-4244-7033"},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Alexandros G. Dimakis","raw_affiliation_strings":["Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA"],"raw_orcid":"https://orcid.org/0000-0002-4244-7033","affiliations":[{"raw_affiliation_string":"Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA","institution_ids":["https://openalex.org/I86519309"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":14.4764,"has_fulltext":false,"cited_by_count":140,"citation_normalized_percentile":{"value":0.99062738,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":100},"biblio":{"volume":"62","issue":"12","first_page":"6661","last_page":"6671"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":1.0,"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/T11181","display_name":"Advanced Data Storage Technologies","score":1.0,"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/T11478","display_name":"Caching and Content Delivery","score":0.9988999962806702,"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/T10772","display_name":"Distributed systems and fault tolerance","score":0.9976000189781189,"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/distributed-data-store","display_name":"Distributed data store","score":0.6945052146911621},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.673276424407959},{"id":"https://openalex.org/keywords/erasure-code","display_name":"Erasure code","score":0.6411296725273132},{"id":"https://openalex.org/keywords/locality","display_name":"Locality","score":0.5209468603134155},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.43819910287857056},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.36692774295806885},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.22553303837776184},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.19013166427612305}],"concepts":[{"id":"https://openalex.org/C24885549","wikidata":"https://www.wikidata.org/wiki/Q339678","display_name":"Distributed data store","level":2,"score":0.6945052146911621},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.673276424407959},{"id":"https://openalex.org/C137529215","wikidata":"https://www.wikidata.org/wiki/Q5385031","display_name":"Erasure code","level":3,"score":0.6411296725273132},{"id":"https://openalex.org/C2779808786","wikidata":"https://www.wikidata.org/wiki/Q6664603","display_name":"Locality","level":2,"score":0.5209468603134155},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.43819910287857056},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.36692774295806885},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.22553303837776184},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.19013166427612305},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tit.2016.2555813","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2016.2555813","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/G2324036533","display_name":null,"funder_award_id":"CCF1217894","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G4669333483","display_name":null,"funder_award_id":"1344364","funder_id":"https://openalex.org/F4320332179","funder_display_name":"Office of the Director"},{"id":"https://openalex.org/G853956002","display_name":null,"funder_award_id":"1344179","funder_id":"https://openalex.org/F4320332179","funder_display_name":"Office of the Director"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320332179","display_name":"Office of the Director","ror":"https://ror.org/04nseet23"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":55,"referenced_works":["https://openalex.org/W154253821","https://openalex.org/W197831480","https://openalex.org/W200851994","https://openalex.org/W1529946666","https://openalex.org/W1578136774","https://openalex.org/W1599335667","https://openalex.org/W1690358018","https://openalex.org/W1820072824","https://openalex.org/W1836955865","https://openalex.org/W1966250211","https://openalex.org/W1968528796","https://openalex.org/W1986198151","https://openalex.org/W1993830711","https://openalex.org/W1995147907","https://openalex.org/W1997044393","https://openalex.org/W1999804635","https://openalex.org/W2008976700","https://openalex.org/W2014149071","https://openalex.org/W2031058522","https://openalex.org/W2035802809","https://openalex.org/W2050413942","https://openalex.org/W2050500290","https://openalex.org/W2060646539","https://openalex.org/W2067422027","https://openalex.org/W2067981730","https://openalex.org/W2084043960","https://openalex.org/W2099837838","https://openalex.org/W2105185344","https://openalex.org/W2115769160","https://openalex.org/W2126067205","https://openalex.org/W2126295689","https://openalex.org/W2131304595","https://openalex.org/W2138744797","https://openalex.org/W2140420067","https://openalex.org/W2141222886","https://openalex.org/W2150777202","https://openalex.org/W2167592273","https://openalex.org/W2167703619","https://openalex.org/W2178307079","https://openalex.org/W2949514404","https://openalex.org/W2950798723","https://openalex.org/W2951121671","https://openalex.org/W2963178700","https://openalex.org/W2963804797","https://openalex.org/W2963963730","https://openalex.org/W3100282565","https://openalex.org/W3103425664","https://openalex.org/W3106482607","https://openalex.org/W6606324823","https://openalex.org/W6607934843","https://openalex.org/W6642403778","https://openalex.org/W6649546340","https://openalex.org/W6665514128","https://openalex.org/W6678581137","https://openalex.org/W6684733533"],"related_works":["https://openalex.org/W2963163039","https://openalex.org/W2807749388","https://openalex.org/W2623177195","https://openalex.org/W4294555231","https://openalex.org/W2095952791","https://openalex.org/W1667838839","https://openalex.org/W2532270758","https://openalex.org/W2086474248","https://openalex.org/W3009037395","https://openalex.org/W2974613382"],"abstract_inverted_index":{"Petabyte-scale":[0],"distributed":[1,25,74],"storage":[2,13,75],"systems":[3],"are":[4,21,46,77],"currently":[5,82],"transitioning":[6],"to":[7,10,28,100],"erasure":[8],"codes":[9,37,44],"achieve":[11],"higher":[12],"efficiency.":[14],"Classical":[15],"codes,":[16],"such":[17],"as":[18],"Reed-Solomon":[19],"(RS),":[20],"highly":[22],"sub-optimal":[23],"for":[24,66,71,105,128],"environments":[26],"due":[27],"their":[29],"high":[30],"overhead":[31],"during":[32],"single-failure":[33],"events.":[34],"Locally":[35],"repairable":[36],"(LRCs)":[38],"form":[39,83],"a":[40,106,143],"new":[41,144],"family":[42],"of":[43,55,87,109,135,138],"that":[45,97,126],"repair":[47,130],"efficient.":[48],"In":[49,89],"particular,":[50],"LRCs":[51,69],"minimize":[52],"the":[53,133,136,139,147,151],"number":[54],"nodes":[56],"participating":[57],"in":[58,73],"single":[59],"node":[60],"repairs.":[61],"Fundamental":[62],"bounds":[63],"and":[64,81,102,120],"methods":[65],"explicitly":[67],"constructing":[68],"suitable":[70],"deployment":[72],"clusters":[76],"not":[78],"fully":[79],"understood":[80],"an":[84,94],"active":[85],"area":[86],"research.":[88],"this":[90],"paper,":[91],"we":[92,141],"present":[93],"explicit":[95],"LRC":[96],"is":[98,103,114],"simple":[99,124],"construct":[101],"optimal":[104],"specific":[107],"set":[108],"coding":[110],"parameters.":[111],"Our":[112],"construction":[113],"based":[115],"on":[116,146],"grouping":[117],"RS":[118],"symbols":[119],"then":[121],"adding":[122],"extra":[123],"parities":[125],"allow":[127],"small":[129],"locality.":[131],"For":[132],"analysis":[134],"optimality":[137],"code,":[140],"derive":[142],"result":[145],"matroid":[148],"represented":[149],"by":[150],"code's":[152],"generator":[153],"matrix.":[154]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":9},{"year":2024,"cited_by_count":15},{"year":2023,"cited_by_count":13},{"year":2022,"cited_by_count":18},{"year":2021,"cited_by_count":10},{"year":2020,"cited_by_count":21},{"year":2019,"cited_by_count":16},{"year":2018,"cited_by_count":19},{"year":2017,"cited_by_count":12},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}