{"id":"https://openalex.org/W2092350596","doi":"https://doi.org/10.1016/s0167-6377(02)00174-8","title":"On the hardness of evaluating criticality of activities in a planar network with duration intervals","display_name":"On the hardness of evaluating criticality of activities in a planar network with duration intervals","publication_year":2002,"publication_date":"2002-12-03","ids":{"openalex":"https://openalex.org/W2092350596","doi":"https://doi.org/10.1016/s0167-6377(02)00174-8","mag":"2092350596"},"language":"en","primary_location":{"id":"doi:10.1016/s0167-6377(02)00174-8","doi":"https://doi.org/10.1016/s0167-6377(02)00174-8","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0167-6377(02)00174-8","pdf_url":null,"source":{"id":"https://openalex.org/S27769002","display_name":"Operations Research Letters","issn_l":"0167-6377","issn":["0167-6377","1872-7468"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-b","anvur-scientific","cwts-core","jufo-1","norway-1","poland-70","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Operations Research Letters","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/A5081352071","display_name":"Stefan Chanas A","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I11923345","display_name":"Wroc\u0142aw University of Science and Technology","ror":"https://ror.org/008fyn775","country_code":"PL","type":"education","lineage":["https://openalex.org/I11923345"]}],"countries":["PL"],"is_corresponding":true,"raw_author_name":"Stefan Chanas","raw_affiliation_strings":["Institute of Industrial Engineering and Management, Wroc\u0142aw University of Technology, Wybrze\u017ce Wyspia\u0144skiego 27, 50-370 Wroc\u0142aw, Poland","Institute of Industrial Engineering and Management, Wroc\u0142aw University of Technology, Wybrzee Wyspia\u0144skiego 27, 50-370 Wroc\u0142aw, Poland#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Industrial Engineering and Management, Wroc\u0142aw University of Technology, Wybrze\u017ce Wyspia\u0144skiego 27, 50-370 Wroc\u0142aw, Poland","institution_ids":["https://openalex.org/I11923345"]},{"raw_affiliation_string":"Institute of Industrial Engineering and Management, Wroc\u0142aw University of Technology, Wybrzee Wyspia\u0144skiego 27, 50-370 Wroc\u0142aw, Poland#TAB#","institution_ids":["https://openalex.org/I11923345"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035521253","display_name":"Pawe\u0142 Zieli\u0144ski","orcid":"https://orcid.org/0000-0002-1466-2887","observed_orcids":["https://orcid.org/0000-0002-1466-2887"]},"institutions":[{"id":"https://openalex.org/I119217307","display_name":"Opole University of Technology","ror":"https://ror.org/05sj5k538","country_code":"PL","type":"education","lineage":["https://openalex.org/I119217307"]}],"countries":["PL"],"is_corresponding":false,"raw_author_name":"Pawe\u0142 Zieli\u0144ski","raw_affiliation_strings":["Institute of Mathematics, Technical University of Opole, Luboszycka 3, 45-036 Opole, Poland","Institute of Mathematics, Technical University of Opole, Luboszycka 3, 45-036 Opole, Poland#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Mathematics, Technical University of Opole, Luboszycka 3, 45-036 Opole, Poland","institution_ids":["https://openalex.org/I119217307"]},{"raw_affiliation_string":"Institute of Mathematics, Technical University of Opole, Luboszycka 3, 45-036 Opole, Poland#TAB#","institution_ids":["https://openalex.org/I119217307"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5081352071"],"corresponding_institution_ids":["https://openalex.org/I11923345"],"apc_list":{"value":2960,"currency":"USD","value_usd":2960},"apc_paid":null,"fwci":2.7437,"has_fulltext":false,"cited_by_count":39,"citation_normalized_percentile":{"value":0.90588319,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"31","issue":"1","first_page":"53","last_page":"59"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12177","display_name":"Resource-Constrained Project Scheduling","score":0.98580002784729,"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"}},"topics":[{"id":"https://openalex.org/T12177","display_name":"Resource-Constrained Project Scheduling","score":0.98580002784729,"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"}},{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.013299999758601189,"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"}},{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":9.999999747378752e-05,"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/planar-networks","display_name":"planar networks","score":0.9459999799728394},{"id":"https://openalex.org/keywords/np-completeness","display_name":"NP-completeness","score":0.8610000014305115},{"id":"https://openalex.org/keywords/np-hardness","display_name":"NP-hardness","score":0.9710000157356262},{"id":"https://openalex.org/keywords/computational-complexity","display_name":"computational complexity","score":0.8159999847412109},{"id":"https://openalex.org/keywords/project-scheduling","display_name":"project scheduling","score":0.7360000014305115},{"id":"https://openalex.org/keywords/critical-path","display_name":"critical path","score":0.4909999966621399}],"concepts":[{"id":"https://openalex.org/C125611927","wikidata":"https://www.wikidata.org/wiki/Q17008131","display_name":"Criticality","level":2,"score":0.9260780811309814},{"id":"https://openalex.org/C112758219","wikidata":"https://www.wikidata.org/wiki/Q16038819","display_name":"Duration (music)","level":2,"score":0.8260068893432617},{"id":"https://openalex.org/C2780337265","wikidata":"https://www.wikidata.org/wiki/Q185958","display_name":"Float (project management)","level":2,"score":0.7167662382125854},{"id":"https://openalex.org/C134786449","wikidata":"https://www.wikidata.org/wiki/Q3391255","display_name":"Planar","level":2,"score":0.7110434770584106},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4510941505432129},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4453575611114502},{"id":"https://openalex.org/C115874739","wikidata":"https://www.wikidata.org/wiki/Q825377","display_name":"Critical path method","level":2,"score":0.43187570571899414},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.35422515869140625},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1894109845161438},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11440107226371765},{"id":"https://openalex.org/C199104240","wikidata":"https://www.wikidata.org/wiki/Q118291","display_name":"Marine engineering","level":1,"score":0.0},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","level":1,"score":0.0},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.0},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0167-6377(02)00174-8","doi":"https://doi.org/10.1016/s0167-6377(02)00174-8","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0167-6377(02)00174-8","pdf_url":null,"source":{"id":"https://openalex.org/S27769002","display_name":"Operations Research Letters","issn_l":"0167-6377","issn":["0167-6377","1872-7468"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-b","anvur-scientific","cwts-core","jufo-1","norway-1","poland-70","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Operations Research Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1969972122","https://openalex.org/W2009479118","https://openalex.org/W2011039300","https://openalex.org/W2035871154","https://openalex.org/W2142818506","https://openalex.org/W2155467293","https://openalex.org/W2162268477","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W1969972122","https://openalex.org/W2089568180","https://openalex.org/W2076242146","https://openalex.org/W2158349284","https://openalex.org/W2001977344","https://openalex.org/W184691986","https://openalex.org/W4302039537","https://openalex.org/W2080255019","https://openalex.org/W1562318151","https://openalex.org/W54984745"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2016,"cited_by_count":4},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":3}],"updated_date":"2026-10-14T16:39:01.820549","created_date":"2016-06-24T00:00:00"}
