{"id":"https://openalex.org/W4243189231","doi":"https://doi.org/10.1007/978-3-540-24587-2_56","title":"Improved Approximation Algorithms for Optimization Problems in Graphs with Superlogarithmic Treewidth","display_name":"Improved Approximation Algorithms for Optimization Problems in Graphs with Superlogarithmic Treewidth","publication_year":2003,"publication_date":"2003-01-01","ids":{"openalex":"https://openalex.org/W4243189231","doi":"https://doi.org/10.1007/978-3-540-24587-2_56"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-540-24587-2_56","doi":"https://doi.org/10.1007/978-3-540-24587-2_56","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-24587-2_56","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,"listed_in":["cwts-core","jufo-1","ki-jl-1","norway-1","vabb-shw"],"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"},"volume":{"id":"https://openalex.org/W1769833081","display_name":"Algorithms and Computation"},"type":"conference-paper","is_traditional":true,"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/A5051815913","display_name":"Artur Czumaj","orcid":"https://orcid.org/0000-0002-7743-438X","observed_orcids":["https://orcid.org/0000-0002-7743-438X"]},"institutions":[{"id":"https://openalex.org/I118118575","display_name":"New Jersey Institute of Technology","ror":"https://ror.org/05e74xb87","country_code":"US","type":"education","lineage":["https://openalex.org/I118118575"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Artur Czumaj","raw_affiliation_strings":["Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA","institution_ids":["https://openalex.org/I118118575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016509031","display_name":"Andrzej Lingas","orcid":"https://orcid.org/0000-0003-4998-9844","observed_orcids":["https://orcid.org/0000-0003-4998-9844"]},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Andrzej Lingas","raw_affiliation_strings":["Department of Computer Science, Lund University, 22100, Lund, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Lund University, 22100, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002256808","display_name":"Johan S. Nilsson","orcid":"https://orcid.org/0000-0002-2472-8464","observed_orcids":["https://orcid.org/0000-0002-2472-8464"]},"institutions":[{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Johan Nilsson","raw_affiliation_strings":["Department of Computer Science, Lund University, 22100, Lund, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Lund University, 22100, Lund, Sweden","institution_ids":["https://openalex.org/I187531555"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"544","last_page":"553"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.5009999871253967,"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":0.5009999871253967,"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":0.49799999594688416,"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/T11269","display_name":"Algorithms and Data Compression","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2614","display_name":"Theoretical Computer Science"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/approximation-algorithms","display_name":"approximation algorithms","score":0.9570000171661377},{"id":"https://openalex.org/keywords/treewidth","display_name":"treewidth","score":0.7129999995231628},{"id":"https://openalex.org/keywords/partial-k-trees","display_name":"partial k-trees","score":0.9919999837875366},{"id":"https://openalex.org/keywords/np-hard-graph-problems","display_name":"NP-hard graph problems","score":0.7870000004768372},{"id":"https://openalex.org/keywords/maximum-independent-set-problem","display_name":"maximum independent set","score":0.9279999732971191},{"id":"https://openalex.org/keywords/randomized-approximation","display_name":"randomized approximation","score":0.6769999861717224},{"id":"https://openalex.org/keywords/deterministic-approximation","display_name":"deterministic approximation","score":0.7409999966621399},{"id":"https://openalex.org/keywords/graph-optimization","display_name":"graph optimization","score":0.5429999828338623}],"concepts":[{"id":"https://openalex.org/C132569581","wikidata":"https://www.wikidata.org/wiki/Q5067368","display_name":"Treewidth","level":5,"score":0.774973452091217},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.7469894289970398},{"id":"https://openalex.org/C99140742","wikidata":"https://www.wikidata.org/wiki/Q843550","display_name":"Polynomial-time approximation scheme","level":3,"score":0.7376368045806885},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.5104207396507263},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.508084774017334},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4593861401081085},{"id":"https://openalex.org/C90119067","wikidata":"https://www.wikidata.org/wiki/Q43260","display_name":"Polynomial","level":2,"score":0.4151794910430908},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4123046100139618},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.3709784150123596},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3540351688861847},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3314085602760315},{"id":"https://openalex.org/C43517604","wikidata":"https://www.wikidata.org/wiki/Q7144893","display_name":"Pathwidth","level":4,"score":0.21420466899871826},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.08580303192138672},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1007/978-3-540-24587-2_56","doi":"https://doi.org/10.1007/978-3-540-24587-2_56","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-24587-2_56","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,"listed_in":["cwts-core","jufo-1","ki-jl-1","norway-1","vabb-shw"],"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:CiteSeerX.psu:10.1.1.218.8579","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.218.8579","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cis.njit.edu/~czumaj/PUBLICATIONS/MyPublications/ISAAC-2003-LNCS.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.62.827","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.62.827","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cis.njit.edu/~czumaj/PUBLICATIONS/ISAAC-2003-Proceedings.ps.gz","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1553377418","https://openalex.org/W1869394087","https://openalex.org/W1964543450","https://openalex.org/W2011039300","https://openalex.org/W2027562075","https://openalex.org/W2029448190","https://openalex.org/W2034501206","https://openalex.org/W2042587503","https://openalex.org/W2059372025","https://openalex.org/W2064796716","https://openalex.org/W2074920973","https://openalex.org/W2081254453","https://openalex.org/W2087083200","https://openalex.org/W2132991500","https://openalex.org/W2401610261","https://openalex.org/W4213368513"],"related_works":["https://openalex.org/W1769833081","https://openalex.org/W1965171369","https://openalex.org/W1991755800","https://openalex.org/W6966419251","https://openalex.org/W1580414818","https://openalex.org/W4400061723","https://openalex.org/W2043745737","https://openalex.org/W2159366821","https://openalex.org/W1973972417","https://openalex.org/W4385332695"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-11-06T12:05:46.655746","created_date":"2022-05-12T00:00:00"}
