{"id":"https://openalex.org/W2949714573","doi":"https://doi.org/10.1007/s10878-017-0245-7","title":"An approximation algorithm for maximum internal spanning tree","display_name":"An approximation algorithm for maximum internal spanning tree","publication_year":2018,"publication_date":"2018-01-14","ids":{"openalex":"https://openalex.org/W2949714573","doi":"https://doi.org/10.1007/s10878-017-0245-7","mag":"2949714573"},"language":"en","primary_location":{"id":"doi:10.1007/s10878-017-0245-7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10878-017-0245-7","pdf_url":null,"source":{"id":"https://openalex.org/S107925523","display_name":"Journal of Combinatorial Optimization","issn_l":"1382-6905","issn":["1382-6905","1573-2886"],"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":"Journal of Combinatorial Optimization","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/A5101483230","display_name":"Zhi\u2010Zhong Chen","orcid":"https://orcid.org/0000-0003-3061-1171"},"institutions":[{"id":"https://openalex.org/I165522056","display_name":"Tokyo Denki University","ror":"https://ror.org/01pa62v70","country_code":"JP","type":"education","lineage":["https://openalex.org/I165522056"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Zhi-Zhong Chen","raw_affiliation_strings":["Division of Information System Design, Tokyo Denki University, Hatoyama, Saitama, 350-0394, Japan","Division of Information System Design, Tokyo Denki University, Hatoyama, Japan"],"affiliations":[{"raw_affiliation_string":"Division of Information System Design, Tokyo Denki University, Hatoyama, Saitama, 350-0394, Japan","institution_ids":["https://openalex.org/I165522056"]},{"raw_affiliation_string":"Division of Information System Design, Tokyo Denki University, Hatoyama, Japan","institution_ids":["https://openalex.org/I165522056"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074847389","display_name":"Youta Harada","orcid":null},"institutions":[{"id":"https://openalex.org/I165522056","display_name":"Tokyo Denki University","ror":"https://ror.org/01pa62v70","country_code":"JP","type":"education","lineage":["https://openalex.org/I165522056"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Youta Harada","raw_affiliation_strings":["Division of Information System Design, Tokyo Denki University, Hatoyama, Saitama, 350-0394, Japan","Division of Information System Design, Tokyo Denki University, Hatoyama, Japan"],"affiliations":[{"raw_affiliation_string":"Division of Information System Design, Tokyo Denki University, Hatoyama, Saitama, 350-0394, Japan","institution_ids":["https://openalex.org/I165522056"]},{"raw_affiliation_string":"Division of Information System Design, Tokyo Denki University, Hatoyama, Japan","institution_ids":["https://openalex.org/I165522056"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086589495","display_name":"Fei Guo","orcid":"https://orcid.org/0000-0002-7842-6840"},"institutions":[{"id":"https://openalex.org/I132369690","display_name":"Tianjin University of Science and Technology","ror":"https://ror.org/018rbtf37","country_code":"CN","type":"education","lineage":["https://openalex.org/I132369690"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fei Guo","raw_affiliation_strings":["School of Computer Science and Technology, Tianjin University, No.135, Yaguan Road, Tianjin, China","School of Computer Science and Technology, Tianjin University, Tianjin, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Tianjin University, No.135, Yaguan Road, Tianjin, China","institution_ids":["https://openalex.org/I132369690"]},{"raw_affiliation_string":"School of Computer Science and Technology, Tianjin University, Tianjin, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5065315257","display_name":"Lusheng Wang","orcid":"https://orcid.org/0000-0002-4344-8791"},"institutions":[{"id":"https://openalex.org/I168719708","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23","country_code":"HK","type":"education","lineage":["https://openalex.org/I168719708"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Lusheng Wang","raw_affiliation_strings":["Department of Computer Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR","Department of Computer Science, City University of Hong Kong, Kowloon, Hong Kong SAR"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR","institution_ids":["https://openalex.org/I168719708"]},{"raw_affiliation_string":"Department of Computer Science, City University of Hong Kong, Kowloon, Hong Kong SAR","institution_ids":["https://openalex.org/I168719708"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5101483230"],"corresponding_institution_ids":["https://openalex.org/I165522056"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":0.6399,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.73901906,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"35","issue":"3","first_page":"955","last_page":"979"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9997000098228455,"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":0.9997000098228455,"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":0.9983999729156494,"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/T10847","display_name":"Advanced Optical Network Technologies","score":0.9726999998092651,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/approximation-algorithm","display_name":"Approximation algorithm","score":0.6834000945091248},{"id":"https://openalex.org/keywords/k-minimum-spanning-tree","display_name":"k-minimum spanning tree","score":0.6750420331954956},{"id":"https://openalex.org/keywords/parameterized-complexity","display_name":"Parameterized complexity","score":0.6697549223899841},{"id":"https://openalex.org/keywords/spanning-tree","display_name":"Spanning tree","score":0.6092360615730286},{"id":"https://openalex.org/keywords/theory-of-computation","display_name":"Theory of computation","score":0.5690707564353943},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.536929726600647},{"id":"https://openalex.org/keywords/mist","display_name":"Mist","score":0.5103480219841003},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.47483211755752563},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4697330892086029},{"id":"https://openalex.org/keywords/polynomial-time-approximation-scheme","display_name":"Polynomial-time approximation scheme","score":0.45273464918136597},{"id":"https://openalex.org/keywords/minimum-spanning-tree","display_name":"Minimum spanning tree","score":0.44631630182266235},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.43997880816459656},{"id":"https://openalex.org/keywords/vertex-cover","display_name":"Vertex cover","score":0.41090840101242065},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4005780816078186},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.373241126537323},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3216562271118164},{"id":"https://openalex.org/keywords/k-ary-tree","display_name":"K-ary tree","score":0.3047284483909607},{"id":"https://openalex.org/keywords/tree-structure","display_name":"Tree structure","score":0.27606821060180664},{"id":"https://openalex.org/keywords/binary-tree","display_name":"Binary tree","score":0.12634193897247314}],"concepts":[{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.6834000945091248},{"id":"https://openalex.org/C202750272","wikidata":"https://www.wikidata.org/wiki/Q6322849","display_name":"k-minimum spanning tree","level":5,"score":0.6750420331954956},{"id":"https://openalex.org/C165464430","wikidata":"https://www.wikidata.org/wiki/Q1570441","display_name":"Parameterized complexity","level":2,"score":0.6697549223899841},{"id":"https://openalex.org/C64331007","wikidata":"https://www.wikidata.org/wiki/Q831672","display_name":"Spanning tree","level":2,"score":0.6092360615730286},{"id":"https://openalex.org/C24858836","wikidata":"https://www.wikidata.org/wiki/Q844718","display_name":"Theory of computation","level":2,"score":0.5690707564353943},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.536929726600647},{"id":"https://openalex.org/C6831451","wikidata":"https://www.wikidata.org/wiki/Q192196","display_name":"Mist","level":2,"score":0.5103480219841003},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.47483211755752563},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4697330892086029},{"id":"https://openalex.org/C99140742","wikidata":"https://www.wikidata.org/wiki/Q843550","display_name":"Polynomial-time approximation scheme","level":3,"score":0.45273464918136597},{"id":"https://openalex.org/C13743678","wikidata":"https://www.wikidata.org/wiki/Q240464","display_name":"Minimum spanning tree","level":2,"score":0.44631630182266235},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.43997880816459656},{"id":"https://openalex.org/C40687702","wikidata":"https://www.wikidata.org/wiki/Q11515519","display_name":"Vertex cover","level":3,"score":0.41090840101242065},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4005780816078186},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.373241126537323},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3216562271118164},{"id":"https://openalex.org/C100560664","wikidata":"https://www.wikidata.org/wiki/Q3608019","display_name":"K-ary tree","level":4,"score":0.3047284483909607},{"id":"https://openalex.org/C163797641","wikidata":"https://www.wikidata.org/wiki/Q2067937","display_name":"Tree structure","level":3,"score":0.27606821060180664},{"id":"https://openalex.org/C197855036","wikidata":"https://www.wikidata.org/wiki/Q380172","display_name":"Binary tree","level":2,"score":0.12634193897247314},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s10878-017-0245-7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10878-017-0245-7","pdf_url":null,"source":{"id":"https://openalex.org/S107925523","display_name":"Journal of Combinatorial Optimization","issn_l":"1382-6905","issn":["1382-6905","1573-2886"],"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":"Journal of Combinatorial Optimization","raw_type":"journal-article"},{"id":"pmh:oai:RePEc:spr:jcomop:v:35:y:2018:i:3:d:10.1007_s10878-017-0245-7","is_oa":false,"landing_page_url":"http://link.springer.com/10.1007/s10878-017-0245-7","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":null,"raw_type":"article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8100000023841858,"display_name":"Clean water and sanitation","id":"https://metadata.un.org/sdg/6"}],"awards":[{"id":"https://openalex.org/G5860125525","display_name":null,"funder_award_id":"61373048","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320309893","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23"},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W174078831","https://openalex.org/W231332773","https://openalex.org/W561119072","https://openalex.org/W1513252978","https://openalex.org/W1560611630","https://openalex.org/W1562509859","https://openalex.org/W1810979759","https://openalex.org/W1822472214","https://openalex.org/W1975444413","https://openalex.org/W1980860702","https://openalex.org/W1986398633","https://openalex.org/W2011039300","https://openalex.org/W2058133856","https://openalex.org/W2096147380","https://openalex.org/W2194898469","https://openalex.org/W2497553818"],"related_works":["https://openalex.org/W1978034843","https://openalex.org/W2949165555","https://openalex.org/W2045244794","https://openalex.org/W620960161","https://openalex.org/W3088222391","https://openalex.org/W2945240418","https://openalex.org/W193918669","https://openalex.org/W1576317141","https://openalex.org/W1958279402","https://openalex.org/W2350349857"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}