{"id":"https://openalex.org/W1998995011","doi":"https://doi.org/10.1287/ijoc.1120.0502","title":"Critically Loaded Time-Varying Multiserver Queues: Computational Challenges and Approximations","display_name":"Critically Loaded Time-Varying Multiserver Queues: Computational Challenges and Approximations","publication_year":2012,"publication_date":"2012-05-05","ids":{"openalex":"https://openalex.org/W1998995011","doi":"https://doi.org/10.1287/ijoc.1120.0502","mag":"1998995011"},"language":"en","primary_location":{"id":"doi:10.1287/ijoc.1120.0502","doi":"https://doi.org/10.1287/ijoc.1120.0502","is_oa":false,"landing_page_url":"https://doi.org/10.1287/ijoc.1120.0502","pdf_url":null,"source":{"id":"https://openalex.org/S165318533","display_name":"INFORMS journal on computing","issn_l":"0899-1499","issn":["0899-1499","1091-9856","1526-5528","2326-3245"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-a","anvur-class-a","anvur-scientific","ccf-b","cwts-core","jufo-1","norway-1","poland-100","russia-white-list-2","utd24","vabb-shw"],"host_organization":"https://openalex.org/P4310315699","host_organization_name":"Institute for Operations Research and the Management Sciences","host_organization_lineage":["https://openalex.org/P4310315699"],"host_organization_lineage_names":["Institute for Operations Research and the Management Sciences"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"INFORMS Journal on Computing","raw_type":"journal-article"},"volume":null,"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/A5003297564","display_name":"Young Myoung Ko","orcid":"https://orcid.org/0000-0003-0659-6688","observed_orcids":["https://orcid.org/0000-0003-0659-6688"]},"institutions":[{"id":"https://openalex.org/I4210117753","display_name":"Sabre (United States)","ror":"https://ror.org/023y94y35","country_code":"US","type":"company","lineage":["https://openalex.org/I4210117753"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Young Myoung Ko","raw_affiliation_strings":["Sabre Holdings, Southlake, Texas 76092","Sabre Holdings, Southlake, Texas 76092#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sabre Holdings, Southlake, Texas 76092","institution_ids":["https://openalex.org/I4210117753"]},{"raw_affiliation_string":"Sabre Holdings, Southlake, Texas 76092#TAB#","institution_ids":["https://openalex.org/I4210117753"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5073945194","display_name":"Natarajan Gautam","orcid":"https://orcid.org/0000-0002-6408-216X","observed_orcids":["https://orcid.org/0000-0002-6408-216X"]},"institutions":[{"id":"https://openalex.org/I91045830","display_name":"Texas A&M University","ror":"https://ror.org/01f5ytq51","country_code":"US","type":"education","lineage":["https://openalex.org/I91045830"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Natarajan Gautam","raw_affiliation_strings":["Department of Industrial and Systems Engineering, Texas A&M University, College Station, Texas 77843"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Industrial and Systems Engineering, Texas A&M University, College Station, Texas 77843","institution_ids":["https://openalex.org/I91045830"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.8345,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.92696461,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"25","issue":"2","first_page":"285","last_page":"301"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10974","display_name":"Advanced Queuing Theory Analysis","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1404","display_name":"Management Information Systems"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10974","display_name":"Advanced Queuing Theory Analysis","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1404","display_name":"Management Information Systems"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13553","display_name":"Age of Information Optimization","score":0.0,"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/T11773","display_name":"Healthcare Operations and Scheduling Optimization","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3604","display_name":"Emergency Medical Services"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/multi-server-queues","display_name":"multi-server queues","score":0.8889999985694885},{"id":"https://openalex.org/keywords/time-varying-arrival-rates","display_name":"time-varying arrival rates","score":0.8880000114440918},{"id":"https://openalex.org/keywords/critical-load","display_name":"critical load","score":0.5220000147819519},{"id":"https://openalex.org/keywords/abandonment","display_name":"abandonment","score":0.6340000033378601},{"id":"https://openalex.org/keywords/retrial","display_name":"retrial","score":0.9390000104904175},{"id":"https://openalex.org/keywords/fluid-limit","display_name":"fluid limit","score":0.8370000123977661},{"id":"https://openalex.org/keywords/diffusion-limit","display_name":"diffusion limit","score":0.8379999995231628},{"id":"https://openalex.org/keywords/strong-approximation","display_name":"strong approximation","score":0.8560000061988831},{"id":"https://openalex.org/keywords/performance-approximation","display_name":"performance approximation","score":0.5440000295639038},{"id":"https://openalex.org/keywords/asymptotic-analysis","display_name":"asymptotic analysis","score":0.5590000152587891}],"concepts":[{"id":"https://openalex.org/C160403385","wikidata":"https://www.wikidata.org/wiki/Q220543","display_name":"Queue","level":2,"score":0.6961126923561096},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6651009321212769},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.6222389936447144},{"id":"https://openalex.org/C181789720","wikidata":"https://www.wikidata.org/wiki/Q4812191","display_name":"Asymptotically optimal algorithm","level":2,"score":0.5803868770599365},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5548836588859558},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.5340130925178528},{"id":"https://openalex.org/C22684755","wikidata":"https://www.wikidata.org/wiki/Q847526","display_name":"Queueing theory","level":2,"score":0.48364126682281494},{"id":"https://openalex.org/C193290586","wikidata":"https://www.wikidata.org/wiki/Q17022030","display_name":"Heavy traffic approximation","level":2,"score":0.467949777841568},{"id":"https://openalex.org/C69357855","wikidata":"https://www.wikidata.org/wiki/Q163214","display_name":"Diffusion","level":2,"score":0.4254220128059387},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.33063647150993347},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2770783603191376},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.151213139295578},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.07704871892929077},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07465073466300964},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1287/ijoc.1120.0502","doi":"https://doi.org/10.1287/ijoc.1120.0502","is_oa":false,"landing_page_url":"https://doi.org/10.1287/ijoc.1120.0502","pdf_url":null,"source":{"id":"https://openalex.org/S165318533","display_name":"INFORMS journal on computing","issn_l":"0899-1499","issn":["0899-1499","1091-9856","1526-5528","2326-3245"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-a","anvur-class-a","anvur-scientific","ccf-b","cwts-core","jufo-1","norway-1","poland-100","russia-white-list-2","utd24","vabb-shw"],"host_organization":"https://openalex.org/P4310315699","host_organization_name":"Institute for Operations Research and the Management Sciences","host_organization_lineage":["https://openalex.org/P4310315699"],"host_organization_lineage_names":["Institute for Operations Research and the Management Sciences"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"INFORMS Journal on Computing","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.720.927","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.720.927","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://ise.tamu.edu/people/faculty/gautam/papers/joc.pdf","raw_type":"text"},{"id":"pmh:oai:oasis.postech.ac.kr:2014.oak/16153","doi":null,"is_oa":false,"landing_page_url":"https://oasis.postech.ac.kr/handle/2014.oak/16153","pdf_url":null,"source":{"id":"https://openalex.org/S4306401965","display_name":"Open Access System for Information Sharing (Pohang University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I123900574","host_organization_name":"Pohang University of Science and Technology","host_organization_lineage":["https://openalex.org/I123900574"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W1582706191","https://openalex.org/W1622874078","https://openalex.org/W1680304211","https://openalex.org/W1971170413","https://openalex.org/W1973351187","https://openalex.org/W1983097489","https://openalex.org/W1995245183","https://openalex.org/W2002648261","https://openalex.org/W2004238000","https://openalex.org/W2007560378","https://openalex.org/W2011786610","https://openalex.org/W2071490795","https://openalex.org/W2121605635","https://openalex.org/W2126794261","https://openalex.org/W2136539009","https://openalex.org/W2140283201","https://openalex.org/W2144005446","https://openalex.org/W2150389904","https://openalex.org/W2799664482","https://openalex.org/W2802739963","https://openalex.org/W4213329537","https://openalex.org/W4252302949"],"related_works":["https://openalex.org/W1543100016","https://openalex.org/W1680304211","https://openalex.org/W2274700538","https://openalex.org/W7098623497","https://openalex.org/W2248968195","https://openalex.org/W2290942547","https://openalex.org/W2008680730","https://openalex.org/W1983484708","https://openalex.org/W2118334596","https://openalex.org/W1551712340"],"abstract_inverted_index":{"In":[0],"this":[1,57],"paper,":[2],"we":[3],"consider":[4],"time-varying":[5],"multiserver":[6,43],"queues":[7,44],"with":[8],"abandonment":[9],"and":[10,17,67,83],"retrials.":[11],"For":[12],"their":[13],"performance":[14,41],"analysis,":[15],"fluid":[16,66],"diffusion":[18,68],"limits":[19,32,69],"utilizing":[20],"strong":[21],"approximations":[22],"have":[23],"been":[24],"widely":[25],"used":[26],"in":[27,70],"the":[28,47,89],"literature.":[29],"Although":[30],"those":[31],"are":[33],"asymptotically":[34,85],"exact,":[35],"they":[36],"may":[37],"not":[38],"accurately":[39],"approximate":[40],"of":[42,49,91],"even":[45],"if":[46],"number":[48],"servers":[50],"is":[51,79],"large.":[52],"To":[53],"address":[54],"that":[55,76],"concern,":[56],"paper":[58],"focuses":[59],"on":[60],"developing":[61],"a":[62,71],"methodology":[63,93],"by":[64,94],"taking":[65],"nontraditional":[72],"fashion.":[73],"We":[74,87],"show":[75],"our":[77,92],"approximation":[78],"significantly":[80],"more":[81],"accurate":[82],"also":[84],"true.":[86],"illustrate":[88],"effectiveness":[90],"performing":[95],"several":[96],"numerical":[97],"experiments.":[98]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-12T09:40:04.860316","created_date":"2016-06-24T00:00:00"}
