{"id":"https://openalex.org/W2091022743","doi":"https://doi.org/10.1016/s0304-3975(99)00150-4","title":"Re-describing an algorithm by Hopcroft","display_name":"Re-describing an algorithm by Hopcroft","publication_year":2001,"publication_date":"2001-01-01","ids":{"openalex":"https://openalex.org/W2091022743","doi":"https://doi.org/10.1016/s0304-3975(99)00150-4","mag":"2091022743"},"language":"en","primary_location":{"id":"doi:10.1016/s0304-3975(99)00150-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0304-3975(99)00150-4","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Theoretical Computer Science","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/A5041564879","display_name":"Timo Knuutila","orcid":"https://orcid.org/0000-0001-5390-3594"},"institutions":[{"id":"https://openalex.org/I155660961","display_name":"University of Turku","ror":"https://ror.org/05vghhr25","country_code":"FI","type":"education","lineage":["https://openalex.org/I155660961"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Timo Knuutila","raw_affiliation_strings":["Department of Computer Science, University of Turku, Lemmink\u00e4isenkatu 14 A, SF-20520 Turku, Finland","University of Turku,Turku, Finland"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Turku, Lemmink\u00e4isenkatu 14 A, SF-20520 Turku, Finland","institution_ids":["https://openalex.org/I155660961"]},{"raw_affiliation_string":"University of Turku,Turku, Finland","institution_ids":["https://openalex.org/I155660961"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5041564879"],"corresponding_institution_ids":["https://openalex.org/I155660961"],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":null,"fwci":1.8542,"has_fulltext":false,"cited_by_count":75,"citation_normalized_percentile":{"value":0.8548495,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"250","issue":"1-2","first_page":"333","last_page":"363"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","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/T11567","display_name":"semigroups and automata theory","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/T11269","display_name":"Algorithms and Data Compression","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T12072","display_name":"Machine Learning and Algorithms","score":0.9959999918937683,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/algorithm","display_name":"Algorithm","score":0.6899926662445068},{"id":"https://openalex.org/keywords/correctness","display_name":"Correctness","score":0.678146243095398},{"id":"https://openalex.org/keywords/mathematical-proof","display_name":"Mathematical proof","score":0.5544447898864746},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.501166820526123},{"id":"https://openalex.org/keywords/heuristics","display_name":"Heuristics","score":0.4926217198371887},{"id":"https://openalex.org/keywords/equivalence","display_name":"Equivalence (formal languages)","score":0.45875903964042664},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.45690077543258667},{"id":"https://openalex.org/keywords/alphabet","display_name":"Alphabet","score":0.42607229948043823},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.41300705075263977},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.2339729368686676},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.22124794125556946},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.2130129039287567}],"concepts":[{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6899926662445068},{"id":"https://openalex.org/C55439883","wikidata":"https://www.wikidata.org/wiki/Q360812","display_name":"Correctness","level":2,"score":0.678146243095398},{"id":"https://openalex.org/C108710211","wikidata":"https://www.wikidata.org/wiki/Q11538","display_name":"Mathematical proof","level":2,"score":0.5544447898864746},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.501166820526123},{"id":"https://openalex.org/C127705205","wikidata":"https://www.wikidata.org/wiki/Q5748245","display_name":"Heuristics","level":2,"score":0.4926217198371887},{"id":"https://openalex.org/C2780069185","wikidata":"https://www.wikidata.org/wiki/Q7977945","display_name":"Equivalence (formal languages)","level":2,"score":0.45875903964042664},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.45690077543258667},{"id":"https://openalex.org/C112876837","wikidata":"https://www.wikidata.org/wiki/Q837518","display_name":"Alphabet","level":2,"score":0.42607229948043823},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.41300705075263977},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.2339729368686676},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.22124794125556946},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.2130129039287567},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0304-3975(99)00150-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0304-3975(99)00150-4","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Theoretical Computer Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education","score":0.7300000190734863}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W154072769","https://openalex.org/W416149594","https://openalex.org/W1521993263","https://openalex.org/W1655990431","https://openalex.org/W1967181601","https://openalex.org/W2002089154","https://openalex.org/W2002279082","https://openalex.org/W2005652416","https://openalex.org/W2030681981","https://openalex.org/W2040046786","https://openalex.org/W2048476153","https://openalex.org/W2068361557","https://openalex.org/W2070830131","https://openalex.org/W2079586208","https://openalex.org/W2113689473","https://openalex.org/W2122493035","https://openalex.org/W2258595992","https://openalex.org/W2752885492","https://openalex.org/W3037477934","https://openalex.org/W3139578191","https://openalex.org/W4235295823","https://openalex.org/W4252976869","https://openalex.org/W4302339081","https://openalex.org/W6606154645","https://openalex.org/W6651527223","https://openalex.org/W6678076828"],"related_works":["https://openalex.org/W1549164736","https://openalex.org/W2084093324","https://openalex.org/W1861107327","https://openalex.org/W2125851141","https://openalex.org/W1966104371","https://openalex.org/W3081815704","https://openalex.org/W2047760031","https://openalex.org/W4287674236","https://openalex.org/W3122573064","https://openalex.org/W2038358049"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":3},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":2}],"updated_date":"2026-03-10T14:07:55.174380","created_date":"2025-10-10T00:00:00"}
