{"id":"https://openalex.org/W2025625324","doi":"https://doi.org/10.1007/s11134-009-9117-x","title":"Improved approximations for the Erlang loss model","display_name":"Improved approximations for the Erlang loss model","publication_year":2009,"publication_date":"2009-05-13","ids":{"openalex":"https://openalex.org/W2025625324","doi":"https://doi.org/10.1007/s11134-009-9117-x","mag":"2025625324"},"language":"en","primary_location":{"id":"doi:10.1007/s11134-009-9117-x","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s11134-009-9117-x","pdf_url":null,"source":{"id":"https://openalex.org/S148503350","display_name":"Queueing Systems","issn_l":"0257-0130","issn":["0257-0130","0340-4384","1572-9443"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Queueing Systems","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/A5089464465","display_name":"Jonatha Anselmi","orcid":"https://orcid.org/0000-0001-5541-5631"},"institutions":[{"id":"https://openalex.org/I1326498283","display_name":"Institut national de recherche en sciences et technologies du num\u00e9rique","ror":"https://ror.org/02kvxyf05","country_code":"FR","type":"government","lineage":["https://openalex.org/I1326498283"]},{"id":"https://openalex.org/I4210101348","display_name":"Centre Inria de l'Universit\u00e9 Grenoble Alpes","ror":"https://ror.org/00n8d6z93","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1326498283","https://openalex.org/I4210101348"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"J. Anselmi","raw_affiliation_strings":["INRIA and LIG Laboratory, MontBonnot Saint-Martin, 38330, France","INRIA and LIG Laboratory, MontBonnot Saint-Martin, France 38330#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INRIA and LIG Laboratory, MontBonnot Saint-Martin, 38330, France","institution_ids":["https://openalex.org/I1326498283","https://openalex.org/I4210101348"]},{"raw_affiliation_string":"INRIA and LIG Laboratory, MontBonnot Saint-Martin, France 38330#TAB#","institution_ids":["https://openalex.org/I1326498283"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082596545","display_name":"Yingdong Lu","orcid":"https://orcid.org/0000-0002-3672-0865"},"institutions":[{"id":"https://openalex.org/I1341412227","display_name":"IBM (United States)","ror":"https://ror.org/05hh8d621","country_code":"US","type":"company","lineage":["https://openalex.org/I1341412227"]},{"id":"https://openalex.org/I4210114115","display_name":"IBM Research - Thomas J. Watson Research Center","ror":"https://ror.org/0265w5591","country_code":"US","type":"facility","lineage":["https://openalex.org/I1341412227","https://openalex.org/I4210114115"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Y. Lu","raw_affiliation_strings":["Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, 10598, USA","Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, USA 10598#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, 10598, USA","institution_ids":["https://openalex.org/I4210114115"]},{"raw_affiliation_string":"Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, USA 10598#TAB#","institution_ids":["https://openalex.org/I1341412227"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079524424","display_name":"Mayank Sharma","orcid":"https://orcid.org/0000-0001-7166-3977"},"institutions":[{"id":"https://openalex.org/I1341412227","display_name":"IBM (United States)","ror":"https://ror.org/05hh8d621","country_code":"US","type":"company","lineage":["https://openalex.org/I1341412227"]},{"id":"https://openalex.org/I4210114115","display_name":"IBM Research - Thomas J. Watson Research Center","ror":"https://ror.org/0265w5591","country_code":"US","type":"facility","lineage":["https://openalex.org/I1341412227","https://openalex.org/I4210114115"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"M. Sharma","raw_affiliation_strings":["Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, 10598, USA","Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, USA 10598#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, 10598, USA","institution_ids":["https://openalex.org/I4210114115"]},{"raw_affiliation_string":"Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, USA 10598#TAB#","institution_ids":["https://openalex.org/I1341412227"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5013152760","display_name":"Mark S. Squillante","orcid":null},"institutions":[{"id":"https://openalex.org/I1341412227","display_name":"IBM (United States)","ror":"https://ror.org/05hh8d621","country_code":"US","type":"company","lineage":["https://openalex.org/I1341412227"]},{"id":"https://openalex.org/I4210114115","display_name":"IBM Research - Thomas J. Watson Research Center","ror":"https://ror.org/0265w5591","country_code":"US","type":"facility","lineage":["https://openalex.org/I1341412227","https://openalex.org/I4210114115"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"M. S. Squillante","raw_affiliation_strings":["Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, 10598, USA","Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, USA 10598#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, 10598, USA","institution_ids":["https://openalex.org/I4210114115"]},{"raw_affiliation_string":"Mathematical Sciences Department, IBM Thomas J. Watson Research Center, Yorktown Heights, USA 10598#TAB#","institution_ids":["https://openalex.org/I1341412227"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5079524424"],"corresponding_institution_ids":["https://openalex.org/I1341412227","https://openalex.org/I4210114115"],"apc_list":{"value":2890,"currency":"USD","value_usd":2890},"apc_paid":null,"fwci":1.6605,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.85602233,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"63","issue":"1-4","first_page":"217","last_page":"239"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10974","display_name":"Advanced Queuing Theory Analysis","score":0.9991999864578247,"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":0.9991999864578247,"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/T12056","display_name":"Markov Chains and Monte Carlo Methods","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9939000010490417,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/computer-science","display_name":"Computer science","score":0.6863035559654236},{"id":"https://openalex.org/keywords/erlang","display_name":"Erlang (programming language)","score":0.6036354899406433},{"id":"https://openalex.org/keywords/erlang-distribution","display_name":"Erlang distribution","score":0.5812933444976807},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5227113962173462},{"id":"https://openalex.org/keywords/stationary-distribution","display_name":"Stationary distribution","score":0.49869322776794434},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.4812754988670349},{"id":"https://openalex.org/keywords/queueing-theory","display_name":"Queueing theory","score":0.47076988220214844},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4318233132362366},{"id":"https://openalex.org/keywords/point-process","display_name":"Point process","score":0.43025654554367065},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.41614121198654175},{"id":"https://openalex.org/keywords/markov-chain","display_name":"Markov chain","score":0.3088209331035614},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.2986717224121094},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2662244439125061},{"id":"https://openalex.org/keywords/exponential-distribution","display_name":"Exponential distribution","score":0.20821556448936462}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6863035559654236},{"id":"https://openalex.org/C82484044","wikidata":"https://www.wikidata.org/wiki/Q334879","display_name":"Erlang (programming language)","level":3,"score":0.6036354899406433},{"id":"https://openalex.org/C145437242","wikidata":"https://www.wikidata.org/wiki/Q762448","display_name":"Erlang distribution","level":3,"score":0.5812933444976807},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5227113962173462},{"id":"https://openalex.org/C98951983","wikidata":"https://www.wikidata.org/wiki/Q7604341","display_name":"Stationary distribution","level":3,"score":0.49869322776794434},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.4812754988670349},{"id":"https://openalex.org/C22684755","wikidata":"https://www.wikidata.org/wiki/Q847526","display_name":"Queueing theory","level":2,"score":0.47076988220214844},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4318233132362366},{"id":"https://openalex.org/C88871306","wikidata":"https://www.wikidata.org/wiki/Q7208287","display_name":"Point process","level":2,"score":0.43025654554367065},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.41614121198654175},{"id":"https://openalex.org/C98763669","wikidata":"https://www.wikidata.org/wiki/Q176645","display_name":"Markov chain","level":2,"score":0.3088209331035614},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.2986717224121094},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2662244439125061},{"id":"https://openalex.org/C55350006","wikidata":"https://www.wikidata.org/wiki/Q237193","display_name":"Exponential distribution","level":2,"score":0.20821556448936462},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C42383842","wikidata":"https://www.wikidata.org/wiki/Q193076","display_name":"Functional programming","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s11134-009-9117-x","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s11134-009-9117-x","pdf_url":null,"source":{"id":"https://openalex.org/S148503350","display_name":"Queueing Systems","issn_l":"0257-0130","issn":["0257-0130","0340-4384","1572-9443"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Queueing Systems","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.724.2526","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.724.2526","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://people.bordeaux.inria.fr/jonatha.anselmi/final_questa.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.44999998807907104,"display_name":"Decent work and economic growth","id":"https://metadata.un.org/sdg/8"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W91578190","https://openalex.org/W1512866443","https://openalex.org/W1977398917","https://openalex.org/W1986485496","https://openalex.org/W1992103639","https://openalex.org/W2006912660","https://openalex.org/W2023678444","https://openalex.org/W2048074087","https://openalex.org/W2054426547","https://openalex.org/W2083838134","https://openalex.org/W2091476158","https://openalex.org/W2109341366","https://openalex.org/W2113144894","https://openalex.org/W2116962306","https://openalex.org/W2121845267","https://openalex.org/W2136453819","https://openalex.org/W2147487384","https://openalex.org/W2159079944","https://openalex.org/W2159445174","https://openalex.org/W2163208395","https://openalex.org/W2170219906","https://openalex.org/W2341534752","https://openalex.org/W4232461091","https://openalex.org/W4249652693","https://openalex.org/W4253578968"],"related_works":["https://openalex.org/W3040730664","https://openalex.org/W3097471325","https://openalex.org/W4366250542","https://openalex.org/W4234635714","https://openalex.org/W2065742731","https://openalex.org/W2182300805","https://openalex.org/W4242192512","https://openalex.org/W2003553005","https://openalex.org/W2127244280","https://openalex.org/W1965832389"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2019,"cited_by_count":3},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}