{"id":"https://openalex.org/W1521523146","doi":"https://doi.org/10.1023/a:1011223523191","title":"Solving Large Airline Crew Scheduling Problems: Random Pairing Generation and Strong Branching","display_name":"Solving Large Airline Crew Scheduling Problems: Random Pairing Generation and Strong Branching","publication_year":2001,"publication_date":"2001-10-01","ids":{"openalex":"https://openalex.org/W1521523146","doi":"https://doi.org/10.1023/a:1011223523191","mag":"1521523146"},"language":"en","primary_location":{"id":"doi:10.1023/a:1011223523191","is_oa":false,"landing_page_url":"https://doi.org/10.1023/a:1011223523191","pdf_url":null,"source":{"id":"https://openalex.org/S39243548","display_name":"Computational Optimization and Applications","issn_l":"0926-6003","issn":["0926-6003","1573-2894"],"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":"Computational Optimization and Applications","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/A5013049879","display_name":"Diego Klabjan","orcid":"https://orcid.org/0000-0003-4213-9281"},"institutions":[{"id":"https://openalex.org/I130701444","display_name":"Georgia Institute of Technology","ror":"https://ror.org/01zkghx44","country_code":"US","type":"education","lineage":["https://openalex.org/I130701444"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Diego Klabjan","raw_affiliation_strings":["School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0205, USA","School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0205, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0205, USA","institution_ids":["https://openalex.org/I130701444"]},{"raw_affiliation_string":"School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0205, USA#TAB#","institution_ids":["https://openalex.org/I130701444"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109938494","display_name":"Ellis L. Johnson","orcid":null},"institutions":[{"id":"https://openalex.org/I130701444","display_name":"Georgia Institute of Technology","ror":"https://ror.org/01zkghx44","country_code":"US","type":"education","lineage":["https://openalex.org/I130701444"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ellis L. Johnson","raw_affiliation_strings":["School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0205, USA","School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0205, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0205, USA","institution_ids":["https://openalex.org/I130701444"]},{"raw_affiliation_string":"School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0205, USA#TAB#","institution_ids":["https://openalex.org/I130701444"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057281816","display_name":"George L. Nemhauser","orcid":null},"institutions":[{"id":"https://openalex.org/I130701444","display_name":"Georgia Institute of Technology","ror":"https://ror.org/01zkghx44","country_code":"US","type":"education","lineage":["https://openalex.org/I130701444"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"George L. Nemhauser","raw_affiliation_strings":["School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0205, USA","School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0205, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0205, USA","institution_ids":["https://openalex.org/I130701444"]},{"raw_affiliation_string":"School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0205, USA#TAB#","institution_ids":["https://openalex.org/I130701444"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058111550","display_name":"Eric Gelman","orcid":null},"institutions":[{"id":"https://openalex.org/I1334696734","display_name":"American Airlines (United States)","ror":"https://ror.org/05jh79p16","country_code":"US","type":"company","lineage":["https://openalex.org/I1334696734"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Eric Gelman","raw_affiliation_strings":["Research and Development, Information Services Division, United Airlines, USA","Research and Development, Information Services Division, United Airlines#TAB#"],"affiliations":[{"raw_affiliation_string":"Research and Development, Information Services Division, United Airlines, USA","institution_ids":["https://openalex.org/I1334696734"]},{"raw_affiliation_string":"Research and Development, Information Services Division, United Airlines#TAB#","institution_ids":["https://openalex.org/I1334696734"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5108635011","display_name":"Srini Ramaswamy","orcid":null},"institutions":[{"id":"https://openalex.org/I1334696734","display_name":"American Airlines (United States)","ror":"https://ror.org/05jh79p16","country_code":"US","type":"company","lineage":["https://openalex.org/I1334696734"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Srini Ramaswamy","raw_affiliation_strings":["Research and Development, Information Services Division, United Airlines, USA","Research and Development, Information Services Division, United Airlines#TAB#"],"affiliations":[{"raw_affiliation_string":"Research and Development, Information Services Division, United Airlines, USA","institution_ids":["https://openalex.org/I1334696734"]},{"raw_affiliation_string":"Research and Development, Information Services Division, United Airlines#TAB#","institution_ids":["https://openalex.org/I1334696734"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5013049879"],"corresponding_institution_ids":["https://openalex.org/I130701444"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":15.4443,"has_fulltext":false,"cited_by_count":101,"citation_normalized_percentile":{"value":0.99066206,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"20","issue":"1","first_page":"73","last_page":"91"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10567","display_name":"Vehicle Routing Optimization Methods","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10567","display_name":"Vehicle Routing Optimization Methods","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11502","display_name":"Facility Location and Emergency Management","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/1407","display_name":"Organizational Behavior and Human Resource Management"},"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/T12401","display_name":"Scheduling and Timetabling Solutions","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/solver","display_name":"Solver","score":0.8027738332748413},{"id":"https://openalex.org/keywords/linear-programming-relaxation","display_name":"Linear programming relaxation","score":0.7768828868865967},{"id":"https://openalex.org/keywords/integer-programming","display_name":"Integer programming","score":0.7614116668701172},{"id":"https://openalex.org/keywords/crew-scheduling","display_name":"Crew scheduling","score":0.7187553644180298},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.6427215933799744},{"id":"https://openalex.org/keywords/branch-and-price","display_name":"Branch and price","score":0.6217032670974731},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5755236744880676},{"id":"https://openalex.org/keywords/linear-programming","display_name":"Linear programming","score":0.5206515192985535},{"id":"https://openalex.org/keywords/branch-and-cut","display_name":"Branch and cut","score":0.518582820892334},{"id":"https://openalex.org/keywords/heuristic","display_name":"Heuristic","score":0.45703235268592834},{"id":"https://openalex.org/keywords/branching","display_name":"Branching (polymer chemistry)","score":0.4484538733959198},{"id":"https://openalex.org/keywords/integer","display_name":"Integer (computer science)","score":0.4423593580722809},{"id":"https://openalex.org/keywords/scheduling","display_name":"Scheduling (production processes)","score":0.388294517993927},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3552985191345215},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3256416320800781},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.09323176741600037}],"concepts":[{"id":"https://openalex.org/C2778770139","wikidata":"https://www.wikidata.org/wiki/Q1966904","display_name":"Solver","level":2,"score":0.8027738332748413},{"id":"https://openalex.org/C25360446","wikidata":"https://www.wikidata.org/wiki/Q1512771","display_name":"Linear programming relaxation","level":3,"score":0.7768828868865967},{"id":"https://openalex.org/C56086750","wikidata":"https://www.wikidata.org/wiki/Q6042592","display_name":"Integer programming","level":2,"score":0.7614116668701172},{"id":"https://openalex.org/C2776986690","wikidata":"https://www.wikidata.org/wiki/Q1139830","display_name":"Crew scheduling","level":3,"score":0.7187553644180298},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.6427215933799744},{"id":"https://openalex.org/C123558587","wikidata":"https://www.wikidata.org/wiki/Q4956382","display_name":"Branch and price","level":3,"score":0.6217032670974731},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5755236744880676},{"id":"https://openalex.org/C41045048","wikidata":"https://www.wikidata.org/wiki/Q202843","display_name":"Linear programming","level":2,"score":0.5206515192985535},{"id":"https://openalex.org/C50797617","wikidata":"https://www.wikidata.org/wiki/Q498566","display_name":"Branch and cut","level":3,"score":0.518582820892334},{"id":"https://openalex.org/C173801870","wikidata":"https://www.wikidata.org/wiki/Q201413","display_name":"Heuristic","level":2,"score":0.45703235268592834},{"id":"https://openalex.org/C206175624","wikidata":"https://www.wikidata.org/wiki/Q595731","display_name":"Branching (polymer chemistry)","level":2,"score":0.4484538733959198},{"id":"https://openalex.org/C97137487","wikidata":"https://www.wikidata.org/wiki/Q729138","display_name":"Integer (computer science)","level":2,"score":0.4423593580722809},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.388294517993927},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3552985191345215},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3256416320800781},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.09323176741600037},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1023/a:1011223523191","is_oa":false,"landing_page_url":"https://doi.org/10.1023/a:1011223523191","pdf_url":null,"source":{"id":"https://openalex.org/S39243548","display_name":"Computational Optimization and Applications","issn_l":"0926-6003","issn":["0926-6003","1573-2894"],"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":"Computational Optimization and Applications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320307102","display_name":"Intel Corporation","ror":"https://ror.org/01ek73717"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W73119250","https://openalex.org/W130600488","https://openalex.org/W1490933350","https://openalex.org/W1591773685","https://openalex.org/W1978818998","https://openalex.org/W2026480109","https://openalex.org/W2028438572","https://openalex.org/W2111175290","https://openalex.org/W2121791508","https://openalex.org/W2135756775","https://openalex.org/W2140481308","https://openalex.org/W2143418989","https://openalex.org/W2167580124","https://openalex.org/W2168047345","https://openalex.org/W2523998199","https://openalex.org/W2570802740","https://openalex.org/W2798766386","https://openalex.org/W4253943043","https://openalex.org/W6631189298","https://openalex.org/W6731896290"],"related_works":["https://openalex.org/W2009796757","https://openalex.org/W2769220156","https://openalex.org/W4252122881","https://openalex.org/W4302819359","https://openalex.org/W4210880521","https://openalex.org/W134055995","https://openalex.org/W2024753861","https://openalex.org/W2081493497","https://openalex.org/W1781497947","https://openalex.org/W1521523146"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":5}],"updated_date":"2026-04-02T15:55:50.835912","created_date":"2016-06-24T00:00:00"}
