{"id":"https://openalex.org/W2800109128","doi":"https://doi.org/10.1109/tit.2018.2834942","title":"Locally Repairable Codes With Unequal Local Erasure Correction","display_name":"Locally Repairable Codes With Unequal Local Erasure Correction","publication_year":2018,"publication_date":"2018-05-10","ids":{"openalex":"https://openalex.org/W2800109128","doi":"https://doi.org/10.1109/tit.2018.2834942","mag":"2800109128"},"language":"en","primary_location":{"id":"doi:10.1109/tit.2018.2834942","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2018.2834942","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":["arxiv","crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/1701.07340","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Geonu Kim","orcid":"https://orcid.org/0000-0001-9650-6644"},"institutions":[{"id":"https://openalex.org/I134353371","display_name":"SK Group (South Korea)","ror":"https://ror.org/03696td91","country_code":"KR","type":"company","lineage":["https://openalex.org/I134353371"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Geonu Kim","raw_affiliation_strings":["SK Hynix, Icheon, South Korea"],"affiliations":[{"raw_affiliation_string":"SK Hynix, Icheon, South Korea","institution_ids":["https://openalex.org/I134353371"]}]},{"author_position":"last","author":{"id":null,"display_name":"Jungwoo Lee","orcid":"https://orcid.org/0000-0002-6804-980X"},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]},{"id":"https://openalex.org/I4210164379","display_name":"Seoul Media Institute of Technology","ror":"https://ror.org/04ywg4h07","country_code":"KR","type":"education","lineage":["https://openalex.org/I4210164379"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jungwoo Lee","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Institute of New Media and Communications, Seoul National University, Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Institute of New Media and Communications, Seoul National University, Seoul, South Korea","institution_ids":["https://openalex.org/I4210164379","https://openalex.org/I139264467"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I134353371"],"apc_list":null,"apc_paid":null,"fwci":2.1461,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.88477694,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"64","issue":"11","first_page":"7137","last_page":"7152"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9933000206947327,"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":0.9933000206947327,"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":0.003800000064074993,"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/T11614","display_name":"Cloud Data Security Solutions","score":0.00039999998989515007,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/locality","display_name":"Locality","score":0.7365000247955322},{"id":"https://openalex.org/keywords/distributed-data-store","display_name":"Distributed data store","score":0.6635000109672546},{"id":"https://openalex.org/keywords/erasure-code","display_name":"Erasure code","score":0.6502000093460083},{"id":"https://openalex.org/keywords/erasure","display_name":"Erasure","score":0.6425999999046326},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.6233000159263611},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.5295000076293945},{"id":"https://openalex.org/keywords/online-codes","display_name":"Online codes","score":0.5105000138282776},{"id":"https://openalex.org/keywords/dimension","display_name":"Dimension (graph theory)","score":0.44769999384880066}],"concepts":[{"id":"https://openalex.org/C2779808786","wikidata":"https://www.wikidata.org/wiki/Q6664603","display_name":"Locality","level":2,"score":0.7365000247955322},{"id":"https://openalex.org/C24885549","wikidata":"https://www.wikidata.org/wiki/Q339678","display_name":"Distributed data store","level":2,"score":0.6635000109672546},{"id":"https://openalex.org/C137529215","wikidata":"https://www.wikidata.org/wiki/Q5385031","display_name":"Erasure code","level":3,"score":0.6502000093460083},{"id":"https://openalex.org/C2778790127","wikidata":"https://www.wikidata.org/wiki/Q484885","display_name":"Erasure","level":2,"score":0.6425999999046326},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.6233000159263611},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.536899983882904},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.5295000076293945},{"id":"https://openalex.org/C103093684","wikidata":"https://www.wikidata.org/wiki/Q7094069","display_name":"Online codes","level":5,"score":0.5105000138282776},{"id":"https://openalex.org/C33676613","wikidata":"https://www.wikidata.org/wiki/Q13415176","display_name":"Dimension (graph theory)","level":2,"score":0.44769999384880066},{"id":"https://openalex.org/C3018063660","wikidata":"https://www.wikidata.org/wiki/Q6865448","display_name":"Minimum distance","level":2,"score":0.4318999946117401},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.4269999861717224},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.41359999775886536},{"id":"https://openalex.org/C193319292","wikidata":"https://www.wikidata.org/wiki/Q272172","display_name":"Hamming distance","level":2,"score":0.3935999870300293},{"id":"https://openalex.org/C23725684","wikidata":"https://www.wikidata.org/wiki/Q616377","display_name":"Maintenance engineering","level":2,"score":0.3614000082015991},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34299999475479126},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.33970001339912415},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.28290000557899475},{"id":"https://openalex.org/C73150493","wikidata":"https://www.wikidata.org/wiki/Q853922","display_name":"Hamming code","level":4,"score":0.28049999475479126},{"id":"https://openalex.org/C194739806","wikidata":"https://www.wikidata.org/wiki/Q66221","display_name":"Computer data storage","level":2,"score":0.2651999890804291},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.26460000872612},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2615000009536743},{"id":"https://openalex.org/C157125643","wikidata":"https://www.wikidata.org/wiki/Q884707","display_name":"Block code","level":3,"score":0.2606000006198883},{"id":"https://openalex.org/C2778945305","wikidata":"https://www.wikidata.org/wiki/Q6865502","display_name":"Minimum weight","level":2,"score":0.2574000060558319}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tit.2018.2834942","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2018.2834942","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"},{"id":"pmh:oai:arXiv.org:1701.07340","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1701.07340","pdf_url":"https://arxiv.org/pdf/1701.07340","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"text"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:1701.07340","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1701.07340","pdf_url":"https://arxiv.org/pdf/1701.07340","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1902314736","https://openalex.org/W1993830711","https://openalex.org/W1997044393","https://openalex.org/W2006551665","https://openalex.org/W2014149071","https://openalex.org/W2017346026","https://openalex.org/W2021662392","https://openalex.org/W2022619326","https://openalex.org/W2050500290","https://openalex.org/W2069554151","https://openalex.org/W2138744797","https://openalex.org/W2155418912","https://openalex.org/W2510019121","https://openalex.org/W2588490202","https://openalex.org/W2962735098","https://openalex.org/W2962962878","https://openalex.org/W2963572190","https://openalex.org/W2964044617"],"related_works":[],"abstract_inverted_index":{"When":[0],"a":[1,4,25,115],"node":[2,100,111],"in":[3,51],"distributed":[5,122],"storage":[6,27,123],"system":[7,17],"fails,":[8],"it":[9],"needs":[10],"to":[11,15,107,112,143],"be":[12,118],"promptly":[13],"repaired":[14],"maintain":[16],"integrity.":[18],"While":[19],"typical":[20],"erasure":[21],"codes":[22,39,79],"can":[23,117],"provide":[24,136],"significant":[26],"advantage":[28,120],"over":[29],"replication,":[30],"they":[31],"suffer":[32],"from":[33,110],"poor":[34],"repair":[35,53],"efficiency.":[36],"Locally":[37],"repairable":[38],"(LRCs)":[40],"tackle":[41],"this":[42,64],"issue":[43],"by":[44,154],"reducing":[45],"the":[46,52,57,68,90,93,105,148,163],"number":[47],"of":[48,59,75],"nodes":[49],"participating":[50],"process":[54],"(locality),":[55],"at":[56],"cost":[58],"reduced":[60],"minimum":[61,73],"distance.":[62,164],"In":[63,146],"paper,":[65],"we":[66,103],"study":[67],"tradeoff":[69],"between":[70],"locality":[71,91],"and":[72,92,134],"distance":[74,83,95,131],"LRCs":[76],"with":[77,125,141],"local":[78,94],"that":[80,158],"have":[81],"arbitrary":[82],"requirements.":[84],"Unlike":[85],"existing":[86],"methods,":[87],"where":[88],"both":[89],"requirements":[96,106],"imposed":[97],"on":[98,162],"every":[99],"are":[101],"identical,":[102],"allow":[104],"vary":[108],"arbitrarily":[109],"node.":[113],"Such":[114],"property":[116],"an":[119,137],"for":[121],"systems":[124],"non-homogeneous":[126],"characteristics.":[127],"We":[128],"present":[129],"Singleton-type":[130],"upper":[132,156],"bounds":[133,157],"also":[135],"optimal":[138],"code":[139],"construction":[140],"respect":[142],"these":[144],"bounds.":[145],"addition,":[147],"feasible":[149],"rate":[150],"region":[151],"is":[152],"characterized":[153],"dimension":[155],"do":[159],"not":[160],"depend":[161]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":6},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2018-05-17T00:00:00"}
