{"id":"https://openalex.org/W2144185214","doi":"https://doi.org/10.1109/tkde.2002.1019223","title":"LH*g: a high-availability scalable distributed data structure by record grouping","display_name":"LH*g: a high-availability scalable distributed data structure by record grouping","publication_year":2002,"publication_date":"2002-07-01","ids":{"openalex":"https://openalex.org/W2144185214","doi":"https://doi.org/10.1109/tkde.2002.1019223","mag":"2144185214"},"language":"en","primary_location":{"id":"doi:10.1109/tkde.2002.1019223","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tkde.2002.1019223","pdf_url":null,"source":{"id":"https://openalex.org/S30698027","display_name":"IEEE Transactions on Knowledge and Data Engineering","issn_l":"1041-4347","issn":["1041-4347","1558-2191","2326-3865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","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 Knowledge and Data Engineering","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/A5063763327","display_name":"Witold Litwin","orcid":"https://orcid.org/0009-0009-2999-9704"},"institutions":[{"id":"https://openalex.org/I56435720","display_name":"Universit\u00e9 Paris Dauphine-PSL","ror":"https://ror.org/052bz7812","country_code":"FR","type":"education","lineage":["https://openalex.org/I2746051580","https://openalex.org/I56435720"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"W. Litwin","raw_affiliation_strings":["Place Marechal Lattrede Tassigny, Universite Paris Dauphine, Paris, France","University Paris-Dauphine, France"],"affiliations":[{"raw_affiliation_string":"Place Marechal Lattrede Tassigny, Universite Paris Dauphine, Paris, France","institution_ids":["https://openalex.org/I56435720"]},{"raw_affiliation_string":"University Paris-Dauphine, France","institution_ids":["https://openalex.org/I56435720"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5018225910","display_name":"Tore Risch","orcid":null},"institutions":[{"id":"https://openalex.org/I123387679","display_name":"Uppsala University","ror":"https://ror.org/048a87296","country_code":"SE","type":"education","lineage":["https://openalex.org/I123387679"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"T. Risch","raw_affiliation_strings":["University of Uppsala, Uppsala, Sweden"],"affiliations":[{"raw_affiliation_string":"University of Uppsala, Uppsala, Sweden","institution_ids":["https://openalex.org/I123387679"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5063763327"],"corresponding_institution_ids":["https://openalex.org/I56435720"],"apc_list":null,"apc_paid":null,"fwci":2.5405,"has_fulltext":false,"cited_by_count":26,"citation_normalized_percentile":{"value":0.91927489,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"14","issue":"4","first_page":"923","last_page":"927"},"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":0.9994999766349792,"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/T11269","display_name":"Algorithms and Data Compression","score":0.9972000122070312,"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/unavailability","display_name":"Unavailability","score":0.934689998626709},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7930693626403809},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.7073099613189697},{"id":"https://openalex.org/keywords/hash-function","display_name":"Hash function","score":0.4901069104671478},{"id":"https://openalex.org/keywords/data-structure","display_name":"Data structure","score":0.4859820306301117},{"id":"https://openalex.org/keywords/file-server","display_name":"File server","score":0.4546218514442444},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.45058318972587585},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.44743531942367554},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.28689685463905334},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2847146689891815},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.1494593322277069},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1114569902420044},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.09635373950004578},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.08536297082901001}],"concepts":[{"id":"https://openalex.org/C2780505938","wikidata":"https://www.wikidata.org/wiki/Q17093282","display_name":"Unavailability","level":2,"score":0.934689998626709},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7930693626403809},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.7073099613189697},{"id":"https://openalex.org/C99138194","wikidata":"https://www.wikidata.org/wiki/Q183427","display_name":"Hash function","level":2,"score":0.4901069104671478},{"id":"https://openalex.org/C162319229","wikidata":"https://www.wikidata.org/wiki/Q175263","display_name":"Data structure","level":2,"score":0.4859820306301117},{"id":"https://openalex.org/C4373008","wikidata":"https://www.wikidata.org/wiki/Q513349","display_name":"File server","level":2,"score":0.4546218514442444},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.45058318972587585},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.44743531942367554},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.28689685463905334},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2847146689891815},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.1494593322277069},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1114569902420044},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.09635373950004578},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.08536297082901001},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/tkde.2002.1019223","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tkde.2002.1019223","pdf_url":null,"source":{"id":"https://openalex.org/S30698027","display_name":"IEEE Transactions on Knowledge and Data Engineering","issn_l":"1041-4347","issn":["1041-4347","1558-2191","2326-3865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","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 Knowledge and Data Engineering","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.21.2018","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.21.2018","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.dis.uu.se/~torer/publ/LHG-final.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.22.3895","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.22.3895","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://ceria.dauphine.fr/LHG-rev1-tore2.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W17004235","https://openalex.org/W92816786","https://openalex.org/W100509257","https://openalex.org/W1516913284","https://openalex.org/W1547338888","https://openalex.org/W1576558652","https://openalex.org/W1591550338","https://openalex.org/W1600795850","https://openalex.org/W1792101419","https://openalex.org/W1913279262","https://openalex.org/W1929853380","https://openalex.org/W2028928922","https://openalex.org/W2035606364","https://openalex.org/W2039096025","https://openalex.org/W2039179345","https://openalex.org/W2101723022","https://openalex.org/W2101902328","https://openalex.org/W2106944212","https://openalex.org/W2117152781","https://openalex.org/W2131944437","https://openalex.org/W2136524736","https://openalex.org/W2137446932","https://openalex.org/W2144185214","https://openalex.org/W2147504831","https://openalex.org/W2157585832","https://openalex.org/W2162390879","https://openalex.org/W2168550698","https://openalex.org/W2169422590","https://openalex.org/W2170424585","https://openalex.org/W2220812565","https://openalex.org/W2491873545","https://openalex.org/W2613324619","https://openalex.org/W2752061190","https://openalex.org/W2752853835","https://openalex.org/W2753710282","https://openalex.org/W3022067268","https://openalex.org/W3083299346","https://openalex.org/W3197472628","https://openalex.org/W4246162201","https://openalex.org/W4248578633","https://openalex.org/W4253790909","https://openalex.org/W6600686937","https://openalex.org/W6635383966","https://openalex.org/W6638416461","https://openalex.org/W6676124638","https://openalex.org/W6681336311","https://openalex.org/W6744529318"],"related_works":["https://openalex.org/W4237235066","https://openalex.org/W207884067","https://openalex.org/W3127016596","https://openalex.org/W2026539069","https://openalex.org/W2365973415","https://openalex.org/W1482423459","https://openalex.org/W3146085540","https://openalex.org/W2996457675","https://openalex.org/W2129918226","https://openalex.org/W2965142558"],"abstract_inverted_index":{"LH*g":[0,17],"(Linear":[1],"Hashing":[2],"by":[3],"grouping)":[4],"is":[5,47,58],"a":[6,39,48,59,65],"high-availability":[7,100],"extension":[8],"of":[9,42,51,72,86,89,94],"the":[10,70,84,92],"LH*":[11],"scalable":[12],"distributed":[13],"data":[14],"structure.":[15],"An":[16],"file":[18,60],"scales":[19],"up":[20,52],"with":[21],"constant":[22],"key":[23],"search":[24,111],"and":[25,96],"insert":[26],"performance,":[27],"while":[28],"surviving":[29],"any":[30,87],"single-site":[31],"unavailability":[32,85],"(failure).":[33],"We":[34],"achieve":[35],"high":[36],"availability":[37],"through":[38],"new":[40],"principle":[41],"record":[43,67],"grouping.":[44],"A":[45],"group":[46,63],"logical":[49],"structure":[50],"to":[53,82],"k":[54,57],"records,":[55],"where":[56],"parameter.":[61],"Every":[62],"contains":[64],"parity":[66],"allowing":[68],"for":[69],"reconstruction":[71],"an":[73],"unavailable":[74],"member.":[75],"The":[76],"basic":[77],"scheme":[78],"may":[79],"be":[80],"generalized":[81],"support":[83],"number":[88],"sites,":[90],"at":[91],"expense":[93],"storage":[95],"messaging.":[97],"Other":[98],"known":[99],"schemes":[101],"are":[102],"static,":[103],"or":[104,108],"require":[105],"more":[106],"storage,":[107],"provide":[109],"worse":[110],"performance.":[112]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}