{"id":"https://openalex.org/W2972474426","doi":"https://doi.org/10.1007/978-3-030-30786-8_2","title":"The 4-Steiner Root Problem","display_name":"The 4-Steiner Root Problem","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2972474426","doi":"https://doi.org/10.1007/978-3-030-30786-8_2","mag":"2972474426"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-030-30786-8_2","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-030-30786-8_2","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://hal.science/hal-02290671","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5020003818","display_name":"Guillaume Ducoffe","orcid":"https://orcid.org/0000-0003-2127-5989"},"institutions":[{"id":"https://openalex.org/I141595442","display_name":"University of Bucharest","ror":"https://ror.org/02x2v6p15","country_code":"RO","type":"education","lineage":["https://openalex.org/I141595442"]},{"id":"https://openalex.org/I4210114681","display_name":"National Institute for Research and Development in Informatics - ICI Bucharest","ror":"https://ror.org/028rq5v79","country_code":"RO","type":"facility","lineage":["https://openalex.org/I4210114681"]}],"countries":["RO"],"is_corresponding":true,"raw_author_name":"Guillaume Ducoffe","raw_affiliation_strings":["Faculty of Mathematics and Computer Science, University of Bucharest, Bucharest, Romania","National Institute for Research and Development in Informatics, Bucharest, Romania","The Research Institute of the University of Bucharest ICUB, Bucharest, Romania","ICUB - Research Institute of the University of Bucharest (36-46 Bd. M. Kogalniceanu, 5th District, 050107, Bucharest - Roumanie)","ICI - National Institute for Research and Development in Informatics [Bucharest] (8-10, Mare\u015fal Averescu, 011455, Bucharest - Roumanie)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Mathematics and Computer Science, University of Bucharest, Bucharest, Romania","institution_ids":["https://openalex.org/I141595442"]},{"raw_affiliation_string":"National Institute for Research and Development in Informatics, Bucharest, Romania","institution_ids":["https://openalex.org/I4210114681"]},{"raw_affiliation_string":"The Research Institute of the University of Bucharest ICUB, Bucharest, Romania","institution_ids":["https://openalex.org/I141595442"]},{"raw_affiliation_string":"ICUB - Research Institute of the University of Bucharest (36-46 Bd. M. Kogalniceanu, 5th District, 050107, Bucharest - Roumanie)","institution_ids":["https://openalex.org/I141595442"]},{"raw_affiliation_string":"ICI - National Institute for Research and Development in Informatics [Bucharest] (8-10, Mare\u015fal Averescu, 011455, Bucharest - Roumanie)","institution_ids":["https://openalex.org/I4210114681"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5020003818"],"corresponding_institution_ids":["https://openalex.org/I141595442","https://openalex.org/I4210114681"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"14","last_page":"26"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9998999834060669,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9990000128746033,"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/T12541","display_name":"Graph Labeling and Dimension Problems","score":0.9973999857902527,"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/steiner-tree-problem","display_name":"Steiner tree problem","score":0.8338894248008728},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.7479082345962524},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.518928050994873},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5090646147727966},{"id":"https://openalex.org/keywords/enhanced-data-rates-for-gsm-evolution","display_name":"Enhanced Data Rates for GSM Evolution","score":0.4895990490913391},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.47866401076316833},{"id":"https://openalex.org/keywords/dynamic-programming","display_name":"Dynamic programming","score":0.46855077147483826},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.44812411069869995},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.39432963728904724},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3560420274734497},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.2203296720981598},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.11273863911628723},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10341709852218628}],"concepts":[{"id":"https://openalex.org/C76220878","wikidata":"https://www.wikidata.org/wiki/Q1764144","display_name":"Steiner tree problem","level":2,"score":0.8338894248008728},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.7479082345962524},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.518928050994873},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5090646147727966},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.4895990490913391},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.47866401076316833},{"id":"https://openalex.org/C37404715","wikidata":"https://www.wikidata.org/wiki/Q380679","display_name":"Dynamic programming","level":2,"score":0.46855077147483826},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.44812411069869995},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.39432963728904724},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3560420274734497},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2203296720981598},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.11273863911628723},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10341709852218628},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/978-3-030-30786-8_2","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-030-30786-8_2","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},{"id":"pmh:oai:HAL:hal-02290671v1","is_oa":true,"landing_page_url":"https://hal.science/hal-02290671","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"45th International Workshop on Graph-Theoretic Concepts in Computer Science (WG 2019), Jun 2019, Vall de Nuria, Spain. pp.14-26, &#x27E8;10.1007/978-3-030-30786-8_2&#x27E9;","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":{"id":"pmh:oai:HAL:hal-02290671v1","is_oa":true,"landing_page_url":"https://hal.science/hal-02290671","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"45th International Workshop on Graph-Theoretic Concepts in Computer Science (WG 2019), Jun 2019, Vall de Nuria, Spain. pp.14-26, &#x27E8;10.1007/978-3-030-30786-8_2&#x27E9;","raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1646789727","https://openalex.org/W1831098006","https://openalex.org/W1972094496","https://openalex.org/W2002621149","https://openalex.org/W2014863096","https://openalex.org/W2057773519","https://openalex.org/W2087058366","https://openalex.org/W2095559603","https://openalex.org/W2112955537","https://openalex.org/W2113280143","https://openalex.org/W2138572249","https://openalex.org/W2156623776","https://openalex.org/W2477819130","https://openalex.org/W2895540896","https://openalex.org/W2895577547","https://openalex.org/W4232896595"],"related_works":["https://openalex.org/W2118320476","https://openalex.org/W2161182859","https://openalex.org/W1503036335","https://openalex.org/W2025658531","https://openalex.org/W4244816249","https://openalex.org/W2115973883","https://openalex.org/W2739242419","https://openalex.org/W1585318792","https://openalex.org/W28092394","https://openalex.org/W2021517364"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1}],"updated_date":"2026-07-25T09:21:30.201066","created_date":"2025-10-10T00:00:00"}
