{"id":"https://openalex.org/W2013085432","doi":"https://doi.org/10.1016/0022-0000(82)90016-2","title":"Classifying regular events in symbolic logic","display_name":"Classifying regular events in symbolic logic","publication_year":1982,"publication_date":"1982-12-01","ids":{"openalex":"https://openalex.org/W2013085432","doi":"https://doi.org/10.1016/0022-0000(82)90016-2","mag":"2013085432"},"language":"en","primary_location":{"id":"doi:10.1016/0022-0000(82)90016-2","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0022-0000(82)90016-2","pdf_url":null,"source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"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":"Journal of Computer and System Sciences","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/A5109527772","display_name":"Wolfgang Thomas","orcid":null},"institutions":[{"id":"https://openalex.org/I4210126395","display_name":"Inform (Germany)","ror":"https://ror.org/02x8c2t37","country_code":"DE","type":"company","lineage":["https://openalex.org/I4210126395"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Wolfgang Thomas","raw_affiliation_strings":["Lehrstuhl f\u00fcr Informatik II, B\u00fcchel 29-31, 5100 Aachen, West Germany"],"affiliations":[{"raw_affiliation_string":"Lehrstuhl f\u00fcr Informatik II, B\u00fcchel 29-31, 5100 Aachen, West Germany","institution_ids":["https://openalex.org/I4210126395"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5109527772"],"corresponding_institution_ids":["https://openalex.org/I4210126395"],"apc_list":{"value":2520,"currency":"USD","value_usd":2520},"apc_paid":null,"fwci":2.1988,"has_fulltext":false,"cited_by_count":336,"citation_normalized_percentile":{"value":0.87539333,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":100},"biblio":{"volume":"25","issue":"3","first_page":"360","last_page":"376"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","score":0.9993000030517578,"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":0.9993000030517578,"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/T10181","display_name":"Natural Language Processing Techniques","score":0.9983000159263611,"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/T10126","display_name":"Logic, programming, and type systems","score":0.9972000122070312,"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/hierarchy","display_name":"Hierarchy","score":0.7394676208496094},{"id":"https://openalex.org/keywords/quantifier","display_name":"Quantifier (linguistics)","score":0.7021232843399048},{"id":"https://openalex.org/keywords/prefix","display_name":"Prefix","score":0.6910415887832642},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6674165725708008},{"id":"https://openalex.org/keywords/star","display_name":"Star (game theory)","score":0.5785351395606995},{"id":"https://openalex.org/keywords/analytical-hierarchy","display_name":"Analytical hierarchy","score":0.574539303779602},{"id":"https://openalex.org/keywords/event","display_name":"Event (particle physics)","score":0.5252289772033691},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.46080565452575684},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.45934635400772095},{"id":"https://openalex.org/keywords/characterization","display_name":"Characterization (materials science)","score":0.4518076181411743},{"id":"https://openalex.org/keywords/rank","display_name":"Rank (graph theory)","score":0.43476828932762146},{"id":"https://openalex.org/keywords/order","display_name":"Order (exchange)","score":0.41652172803878784},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.2873489558696747},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.1770167052745819},{"id":"https://openalex.org/keywords/linguistics","display_name":"Linguistics","score":0.16403329372406006},{"id":"https://openalex.org/keywords/astrophysics","display_name":"Astrophysics","score":0.07089650630950928}],"concepts":[{"id":"https://openalex.org/C31170391","wikidata":"https://www.wikidata.org/wiki/Q188619","display_name":"Hierarchy","level":2,"score":0.7394676208496094},{"id":"https://openalex.org/C2778523021","wikidata":"https://www.wikidata.org/wiki/Q5532504","display_name":"Quantifier (linguistics)","level":2,"score":0.7021232843399048},{"id":"https://openalex.org/C141603448","wikidata":"https://www.wikidata.org/wiki/Q134830","display_name":"Prefix","level":2,"score":0.6910415887832642},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6674165725708008},{"id":"https://openalex.org/C2780897414","wikidata":"https://www.wikidata.org/wiki/Q7600592","display_name":"Star (game theory)","level":2,"score":0.5785351395606995},{"id":"https://openalex.org/C176053320","wikidata":"https://www.wikidata.org/wiki/Q2878515","display_name":"Analytical hierarchy","level":3,"score":0.574539303779602},{"id":"https://openalex.org/C2779662365","wikidata":"https://www.wikidata.org/wiki/Q5416694","display_name":"Event (particle physics)","level":2,"score":0.5252289772033691},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.46080565452575684},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.45934635400772095},{"id":"https://openalex.org/C2780841128","wikidata":"https://www.wikidata.org/wiki/Q5073781","display_name":"Characterization (materials science)","level":2,"score":0.4518076181411743},{"id":"https://openalex.org/C164226766","wikidata":"https://www.wikidata.org/wiki/Q7293202","display_name":"Rank (graph theory)","level":2,"score":0.43476828932762146},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.41652172803878784},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2873489558696747},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.1770167052745819},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.16403329372406006},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.07089650630950928},{"id":"https://openalex.org/C34447519","wikidata":"https://www.wikidata.org/wiki/Q179522","display_name":"Market economy","level":1,"score":0.0},{"id":"https://openalex.org/C87345402","wikidata":"https://www.wikidata.org/wiki/Q485202","display_name":"Analytic hierarchy process","level":2,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C42475967","wikidata":"https://www.wikidata.org/wiki/Q194292","display_name":"Operations research","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0022-0000(82)90016-2","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0022-0000(82)90016-2","pdf_url":null,"source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"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":"Journal of Computer and System Sciences","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6299999952316284,"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W587223573","https://openalex.org/W1542543925","https://openalex.org/W1555138513","https://openalex.org/W1557903771","https://openalex.org/W1851356403","https://openalex.org/W1983682288","https://openalex.org/W1985871005","https://openalex.org/W1986058515","https://openalex.org/W1987027130","https://openalex.org/W2039934838","https://openalex.org/W2078174437","https://openalex.org/W2081443805","https://openalex.org/W2131742729","https://openalex.org/W4205178514","https://openalex.org/W6617347132","https://openalex.org/W6632533193","https://openalex.org/W6633403849","https://openalex.org/W6638876647"],"related_works":["https://openalex.org/W2095175072","https://openalex.org/W4300463335","https://openalex.org/W2531886044","https://openalex.org/W2008977977","https://openalex.org/W1575303034","https://openalex.org/W2590361123","https://openalex.org/W1996184580","https://openalex.org/W4206650230","https://openalex.org/W1522180487","https://openalex.org/W2040673363"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":44},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":13},{"year":2018,"cited_by_count":10},{"year":2017,"cited_by_count":9},{"year":2016,"cited_by_count":6},{"year":2015,"cited_by_count":8},{"year":2014,"cited_by_count":12},{"year":2013,"cited_by_count":7},{"year":2012,"cited_by_count":11}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
