{"id":"https://openalex.org/W2001041237","doi":"https://doi.org/10.1007/s00186-012-0394-5","title":"Finding a core of a tree with pos/neg weight","display_name":"Finding a core of a tree with pos/neg weight","publication_year":2012,"publication_date":"2012-06-04","ids":{"openalex":"https://openalex.org/W2001041237","doi":"https://doi.org/10.1007/s00186-012-0394-5","mag":"2001041237"},"language":"en","primary_location":{"id":"doi:10.1007/s00186-012-0394-5","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00186-012-0394-5","pdf_url":null,"source":{"id":"https://openalex.org/S126160977","display_name":"Mathematical Methods of Operations Research","issn_l":"1432-2994","issn":["1432-2994","1432-5217"],"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":"Mathematical Methods of Operations Research","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/A5061831450","display_name":"Mehdi Zaferanieh","orcid":"https://orcid.org/0000-0001-8442-4166"},"institutions":[{"id":"https://openalex.org/I40734275","display_name":"Hakim Sabzevari University","ror":"https://ror.org/00zyh6d22","country_code":"IR","type":"education","lineage":["https://openalex.org/I40734275"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Mehdi Zaferanieh","raw_affiliation_strings":["Department of Mathematics, Hakim Sabzevari University, Tovhid town, Sabzevar, Iran","hakim sabzevari university-"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Hakim Sabzevari University, Tovhid town, Sabzevar, Iran","institution_ids":["https://openalex.org/I40734275"]},{"raw_affiliation_string":"hakim sabzevari university-","institution_ids":["https://openalex.org/I40734275"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076760215","display_name":"Jafar Fathali","orcid":"https://orcid.org/0000-0003-1397-8529"},"institutions":[{"id":"https://openalex.org/I176861719","display_name":"University of Shahrood","ror":"https://ror.org/00yqvtm78","country_code":"IR","type":"education","lineage":["https://openalex.org/I176861719"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Jafar Fathali","raw_affiliation_strings":["Department of Mathematics, Shahrood University of Technology, University Blvd., Shahrood, Iran",", Shahrood University of Technology"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Shahrood University of Technology, University Blvd., Shahrood, Iran","institution_ids":["https://openalex.org/I176861719"]},{"raw_affiliation_string":", Shahrood University of Technology","institution_ids":["https://openalex.org/I176861719"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":1.0785,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.83166079,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"76","issue":"2","first_page":"147","last_page":"160"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11502","display_name":"Facility Location and Emergency Management","score":0.9991999864578247,"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"}},"topics":[{"id":"https://openalex.org/T11502","display_name":"Facility Location and Emergency Management","score":0.9991999864578247,"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/T10567","display_name":"Vehicle Routing Optimization Methods","score":0.9882000088691711,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9661999940872192,"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/combinatorics","display_name":"Combinatorics","score":0.8010529279708862},{"id":"https://openalex.org/keywords/vertex","display_name":"Vertex (graph theory)","score":0.7821587324142456},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.7482678294181824},{"id":"https://openalex.org/keywords/core","display_name":"Core (optical fiber)","score":0.5520058274269104},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.5204189419746399},{"id":"https://openalex.org/keywords/path","display_name":"Path (computing)","score":0.5064369440078735},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.37170863151550293},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.2516917288303375},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.1819012463092804}],"concepts":[{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.8010529279708862},{"id":"https://openalex.org/C80899671","wikidata":"https://www.wikidata.org/wiki/Q1304193","display_name":"Vertex (graph theory)","level":3,"score":0.7821587324142456},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7482678294181824},{"id":"https://openalex.org/C2164484","wikidata":"https://www.wikidata.org/wiki/Q5170150","display_name":"Core (optical fiber)","level":2,"score":0.5520058274269104},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.5204189419746399},{"id":"https://openalex.org/C2777735758","wikidata":"https://www.wikidata.org/wiki/Q817765","display_name":"Path (computing)","level":2,"score":0.5064369440078735},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.37170863151550293},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.2516917288303375},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.1819012463092804},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s00186-012-0394-5","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00186-012-0394-5","pdf_url":null,"source":{"id":"https://openalex.org/S126160977","display_name":"Mathematical Methods of Operations Research","issn_l":"1432-2994","issn":["1432-2994","1432-5217"],"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":"Mathematical Methods of Operations Research","raw_type":"journal-article"},{"id":"pmh:oai:RePEc:spr:compst:v:76:y:2012:i:2:p:147-160","is_oa":false,"landing_page_url":"http://hdl.handle.net/10.1007/s00186-012-0394-5","pdf_url":null,"source":{"id":"https://openalex.org/S4306401271","display_name":"RePEc: Research Papers in Economics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I77793887","host_organization_name":"Federal Reserve Bank of St. Louis","host_organization_lineage":["https://openalex.org/I77793887"],"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":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W120105391","https://openalex.org/W1984953641","https://openalex.org/W1991466654","https://openalex.org/W1991657767","https://openalex.org/W2015900974","https://openalex.org/W2029412688","https://openalex.org/W2046285099","https://openalex.org/W2059431632","https://openalex.org/W2064072796","https://openalex.org/W2066453010","https://openalex.org/W2070173447","https://openalex.org/W2085579980","https://openalex.org/W2085637279","https://openalex.org/W2090879820","https://openalex.org/W2098757698","https://openalex.org/W2101758859","https://openalex.org/W2103145733","https://openalex.org/W2166964471","https://openalex.org/W2171350309","https://openalex.org/W2606195968","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W3158538495","https://openalex.org/W2045815042","https://openalex.org/W2092226129","https://openalex.org/W2913619905","https://openalex.org/W3125758369","https://openalex.org/W2375898439","https://openalex.org/W2069382761","https://openalex.org/W2028287801","https://openalex.org/W2264548338","https://openalex.org/W4385174200"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
