{"id":"https://openalex.org/W1599092334","doi":"https://doi.org/10.1007/3-540-48224-5_22","title":"Parameterized Complexity: Exponential Speed-Up for Planar Graph Problems","display_name":"Parameterized Complexity: Exponential Speed-Up for Planar Graph Problems","publication_year":2001,"publication_date":"2001-01-01","ids":{"openalex":"https://openalex.org/W1599092334","doi":"https://doi.org/10.1007/3-540-48224-5_22","mag":"1599092334"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-48224-5_22","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-48224-5_22","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":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5079460807","display_name":"Jochen Alber","orcid":null},"institutions":[{"id":"https://openalex.org/I8087733","display_name":"University of T\u00fcbingen","ror":"https://ror.org/03a1kwz48","country_code":"DE","type":"education","lineage":["https://openalex.org/I8087733"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Jochen Alber","raw_affiliation_strings":["Wilhelm-Schickard-Institut f\u00fcr Informatik, Universit\u00e4t T\u00fcbingen, Sand 13, 72076, T\u00fcbingen, Fed. Rep. of Germany","Wilhelm-Schickard-Institut fur Informatik, Universitat Tubingen, Sand 13, D-72076 Tubingen, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Wilhelm-Schickard-Institut f\u00fcr Informatik, Universit\u00e4t T\u00fcbingen, Sand 13, 72076, T\u00fcbingen, Fed. Rep. of Germany","institution_ids":["https://openalex.org/I8087733"]},{"raw_affiliation_string":"Wilhelm-Schickard-Institut fur Informatik, Universitat Tubingen, Sand 13, D-72076 Tubingen, Germany","institution_ids":["https://openalex.org/I8087733"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015688812","display_name":"Henning Fernau","orcid":"https://orcid.org/0000-0002-4444-3220"},"institutions":[{"id":"https://openalex.org/I8087733","display_name":"University of T\u00fcbingen","ror":"https://ror.org/03a1kwz48","country_code":"DE","type":"education","lineage":["https://openalex.org/I8087733"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Henning Fernau","raw_affiliation_strings":["Wilhelm-Schickard-Institut f\u00fcr Informatik, Universit\u00e4t T\u00fcbingen, Sand 13, 72076, T\u00fcbingen, Fed. Rep. of Germany","Wilhelm-Schickard-Institut fur Informatik, Universitat Tubingen, Sand 13, D-72076 Tubingen, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Wilhelm-Schickard-Institut f\u00fcr Informatik, Universit\u00e4t T\u00fcbingen, Sand 13, 72076, T\u00fcbingen, Fed. Rep. of Germany","institution_ids":["https://openalex.org/I8087733"]},{"raw_affiliation_string":"Wilhelm-Schickard-Institut fur Informatik, Universitat Tubingen, Sand 13, D-72076 Tubingen, Germany","institution_ids":["https://openalex.org/I8087733"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033021388","display_name":"Rolf Niedermeier","orcid":"https://orcid.org/0000-0003-1703-1236"},"institutions":[{"id":"https://openalex.org/I8087733","display_name":"University of T\u00fcbingen","ror":"https://ror.org/03a1kwz48","country_code":"DE","type":"education","lineage":["https://openalex.org/I8087733"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Rolf Niedermeier","raw_affiliation_strings":["Wilhelm-Schickard-Institut f\u00fcr Informatik, Universit\u00e4t T\u00fcbingen, Sand 13, 72076, T\u00fcbingen, Fed. Rep. of Germany","Wilhelm-Schickard-Institut fur Informatik, Universitat Tubingen, Sand 13, D-72076 Tubingen, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Wilhelm-Schickard-Institut f\u00fcr Informatik, Universit\u00e4t T\u00fcbingen, Sand 13, 72076, T\u00fcbingen, Fed. Rep. of Germany","institution_ids":["https://openalex.org/I8087733"]},{"raw_affiliation_string":"Wilhelm-Schickard-Institut fur Informatik, Universitat Tubingen, Sand 13, D-72076 Tubingen, Germany","institution_ids":["https://openalex.org/I8087733"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I8087733"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":0.4979,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.58399626,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"52","issue":"1","first_page":"26","last_page":"272"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9988999962806702,"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/T12288","display_name":"Optimization and Search Problems","score":0.9973999857902527,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/parameterized-complexity","display_name":"Parameterized complexity","score":0.8061056137084961},{"id":"https://openalex.org/keywords/vertex-cover","display_name":"Vertex cover","score":0.7931727170944214},{"id":"https://openalex.org/keywords/planar-graph","display_name":"Planar graph","score":0.7917832136154175},{"id":"https://openalex.org/keywords/planar-straight-line-graph","display_name":"Planar straight-line graph","score":0.709533154964447},{"id":"https://openalex.org/keywords/planar","display_name":"Planar","score":0.6455121636390686},{"id":"https://openalex.org/keywords/treewidth","display_name":"Treewidth","score":0.6240042448043823},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.5775700807571411},{"id":"https://openalex.org/keywords/outerplanar-graph","display_name":"Outerplanar graph","score":0.5581675171852112},{"id":"https://openalex.org/keywords/feedback-vertex-set","display_name":"Feedback vertex set","score":0.5366695523262024},{"id":"https://openalex.org/keywords/edge-cover","display_name":"Edge cover","score":0.5219885110855103},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.475980669260025},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4748183488845825},{"id":"https://openalex.org/keywords/vertex","display_name":"Vertex (graph theory)","score":0.44103366136550903},{"id":"https://openalex.org/keywords/book-embedding","display_name":"Book embedding","score":0.4380272626876831},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4050515592098236},{"id":"https://openalex.org/keywords/pathwidth","display_name":"Pathwidth","score":0.3946162164211273},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3574579954147339},{"id":"https://openalex.org/keywords/line-graph","display_name":"Line graph","score":0.21347466111183167}],"concepts":[{"id":"https://openalex.org/C165464430","wikidata":"https://www.wikidata.org/wiki/Q1570441","display_name":"Parameterized complexity","level":2,"score":0.8061056137084961},{"id":"https://openalex.org/C40687702","wikidata":"https://www.wikidata.org/wiki/Q11515519","display_name":"Vertex cover","level":3,"score":0.7931727170944214},{"id":"https://openalex.org/C101837359","wikidata":"https://www.wikidata.org/wiki/Q547823","display_name":"Planar graph","level":3,"score":0.7917832136154175},{"id":"https://openalex.org/C131930043","wikidata":"https://www.wikidata.org/wiki/Q7200964","display_name":"Planar straight-line graph","level":5,"score":0.709533154964447},{"id":"https://openalex.org/C134786449","wikidata":"https://www.wikidata.org/wiki/Q3391255","display_name":"Planar","level":2,"score":0.6455121636390686},{"id":"https://openalex.org/C132569581","wikidata":"https://www.wikidata.org/wiki/Q5067368","display_name":"Treewidth","level":5,"score":0.6240042448043823},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.5775700807571411},{"id":"https://openalex.org/C125792925","wikidata":"https://www.wikidata.org/wiki/Q3115604","display_name":"Outerplanar graph","level":5,"score":0.5581675171852112},{"id":"https://openalex.org/C28723256","wikidata":"https://www.wikidata.org/wiki/Q1400918","display_name":"Feedback vertex set","level":4,"score":0.5366695523262024},{"id":"https://openalex.org/C17762858","wikidata":"https://www.wikidata.org/wiki/Q594001","display_name":"Edge cover","level":3,"score":0.5219885110855103},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.475980669260025},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4748183488845825},{"id":"https://openalex.org/C80899671","wikidata":"https://www.wikidata.org/wiki/Q1304193","display_name":"Vertex (graph theory)","level":3,"score":0.44103366136550903},{"id":"https://openalex.org/C180222743","wikidata":"https://www.wikidata.org/wiki/Q4942980","display_name":"Book embedding","level":5,"score":0.4380272626876831},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4050515592098236},{"id":"https://openalex.org/C43517604","wikidata":"https://www.wikidata.org/wiki/Q7144893","display_name":"Pathwidth","level":4,"score":0.3946162164211273},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3574579954147339},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.21347466111183167},{"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":10,"locations":[{"id":"doi:10.1007/3-540-48224-5_22","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-48224-5_22","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":"doi:10.1016/j.jalgor.2004.03.005","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.jalgor.2004.03.005","pdf_url":null,"source":{"id":"https://openalex.org/S110520077","display_name":"Journal of Algorithms","issn_l":"0196-6774","issn":["0196-6774","1090-2678"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319955","host_organization_name":"Academic Press","host_organization_lineage":["https://openalex.org/P4310319955","https://openalex.org/P4310320990"],"host_organization_lineage_names":["Academic Press","Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Algorithms","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.1007.5254","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1007.5254","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"https://www.researchgate.net/profile/Jochen_Alber/publication/2872833_Parameterized_Complexity_Exponential_Speed-Up_for_Planar_Graph_Problems/links/0c9605166c5efdb34b000000.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.29.2688","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.29.2688","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www-fs.informatik.uni-tuebingen.de/~niedermr/publications/./icalp01.ps.Z","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.3.3883","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.3.3883","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.eccc.uni-trier.de/eccc-reports/2001/TR01-023/revisn01.ps","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.86.5590","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.86.5590","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://theinf1.informatik.uni-jena.de/publications/planar-speed-up-jalg04.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.9.5580","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.9.5580","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ftp://ftp.eccc.uni-trier.de/pub/eccc/reports/2001/TR01-023/Paper.ps","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.9.7243","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.9.7243","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www-fs.informatik.uni-tuebingen.de/~niedermr/publications/./afn-jalg04.ps.gz","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.93.2084","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.93.2084","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://theinf1.informatik.uni-jena.de/publications/afn-jalg04.pdf","raw_type":"text"},{"id":"mag:1599092334","is_oa":false,"landing_page_url":"http://dblp.uni-trier.de/db/journals/eccc/eccc8.html#ECCC-TR01-023","pdf_url":null,"source":{"id":"https://openalex.org/S11189987","display_name":"Electronic colloquium on computational complexity","issn_l":"1433-8092","issn":["1433-8092"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320508","host_organization_name":"Society for Industrial and Applied Mathematics","host_organization_lineage":["https://openalex.org/P4310320508"],"host_organization_lineage_names":["Society for Industrial and Applied Mathematics"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":"Electronic colloquium on computational complexity","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":63,"referenced_works":["https://openalex.org/W136556473","https://openalex.org/W272087405","https://openalex.org/W1491529421","https://openalex.org/W1528850355","https://openalex.org/W1537449969","https://openalex.org/W1553002612","https://openalex.org/W1556982589","https://openalex.org/W1557597301","https://openalex.org/W1572977974","https://openalex.org/W1580414818","https://openalex.org/W1727001693","https://openalex.org/W1857464237","https://openalex.org/W1964700557","https://openalex.org/W1980532785","https://openalex.org/W1982180670","https://openalex.org/W1983156760","https://openalex.org/W1988133548","https://openalex.org/W1989102235","https://openalex.org/W1990313671","https://openalex.org/W1996700055","https://openalex.org/W2006933117","https://openalex.org/W2013415302","https://openalex.org/W2020133533","https://openalex.org/W2026771935","https://openalex.org/W2027999353","https://openalex.org/W2030295282","https://openalex.org/W2038643780","https://openalex.org/W2050272710","https://openalex.org/W2074210283","https://openalex.org/W2077571023","https://openalex.org/W2087083200","https://openalex.org/W2089688060","https://openalex.org/W2106353099","https://openalex.org/W2108093643","https://openalex.org/W2123784540","https://openalex.org/W2125065856","https://openalex.org/W2144809360","https://openalex.org/W2156760067","https://openalex.org/W2170009211","https://openalex.org/W2913688336","https://openalex.org/W4213368513","https://openalex.org/W4292230561","https://openalex.org/W6605755145","https://openalex.org/W6629300085","https://openalex.org/W6631600425","https://openalex.org/W6631890511","https://openalex.org/W6632032330","https://openalex.org/W6633416829","https://openalex.org/W6633419661","https://openalex.org/W6634222898","https://openalex.org/W6634695936","https://openalex.org/W6635718152","https://openalex.org/W6639109470","https://openalex.org/W6647550647","https://openalex.org/W6669390180","https://openalex.org/W6669958754","https://openalex.org/W6670101041","https://openalex.org/W6675279946","https://openalex.org/W6676020296","https://openalex.org/W6678496407","https://openalex.org/W6680956126","https://openalex.org/W6681078573","https://openalex.org/W6681153807"],"related_works":["https://openalex.org/W2134710838","https://openalex.org/W2130408693","https://openalex.org/W1491784324","https://openalex.org/W2507407799","https://openalex.org/W2115147103","https://openalex.org/W3038050706","https://openalex.org/W2963232359","https://openalex.org/W2964601315","https://openalex.org/W3166550250","https://openalex.org/W2951233324","https://openalex.org/W1588705292","https://openalex.org/W2719376562","https://openalex.org/W2789139888","https://openalex.org/W1981591809","https://openalex.org/W2964067126","https://openalex.org/W3028209208","https://openalex.org/W2779026676","https://openalex.org/W2963152259","https://openalex.org/W2135952685","https://openalex.org/W2767460587"],"abstract_inverted_index":null,"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}