{"id":"https://openalex.org/W1966543618","doi":"https://doi.org/10.1007/bf00264286","title":"Context free derivations on word monoids","display_name":"Context free derivations on word monoids","publication_year":1990,"publication_date":"1990-09-01","ids":{"openalex":"https://openalex.org/W1966543618","doi":"https://doi.org/10.1007/bf00264286","mag":"1966543618"},"language":"en","primary_location":{"id":"doi:10.1007/bf00264286","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf00264286","pdf_url":null,"source":{"id":"https://openalex.org/S84409463","display_name":"Acta Informatica","issn_l":"0001-5903","issn":["0001-5903","1432-0525"],"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":"Acta Informatica","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/A5009693719","display_name":"Alexander Meduna","orcid":"https://orcid.org/0000-0002-2341-0606"},"institutions":[{"id":"https://openalex.org/I76835614","display_name":"University of Missouri","ror":"https://ror.org/02ymw8z06","country_code":"US","type":"education","lineage":["https://openalex.org/I76835614"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Alexander Meduna","raw_affiliation_strings":["Computer Science Department, University of Missouri-Columbia, 65211, Columbia, MO, USA","Computer Science Department, University of Missouri-Columbia, Columbia, USA 65211#TAB#"],"affiliations":[{"raw_affiliation_string":"Computer Science Department, University of Missouri-Columbia, 65211, Columbia, MO, USA","institution_ids":["https://openalex.org/I76835614"]},{"raw_affiliation_string":"Computer Science Department, University of Missouri-Columbia, Columbia, USA 65211#TAB#","institution_ids":["https://openalex.org/I76835614"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5009693719"],"corresponding_institution_ids":["https://openalex.org/I76835614"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":0.5374,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.71278459,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"27","issue":"8","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10181","display_name":"Natural Language Processing Techniques","score":0.9991000294685364,"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"}},"topics":[{"id":"https://openalex.org/T10181","display_name":"Natural Language Processing Techniques","score":0.9991000294685364,"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/T11567","display_name":"semigroups and automata theory","score":0.9980999827384949,"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/T11727","display_name":"Advanced Algebra and Logic","score":0.9821000099182129,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/recursively-enumerable-language","display_name":"Recursively enumerable language","score":0.849188506603241},{"id":"https://openalex.org/keywords/theory-of-computation","display_name":"Theory of computation","score":0.7143974900245667},{"id":"https://openalex.org/keywords/word","display_name":"Word (group theory)","score":0.6940467357635498},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.6390671730041504},{"id":"https://openalex.org/keywords/chomsky-hierarchy","display_name":"Chomsky hierarchy","score":0.5756259560585022},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5604109764099121},{"id":"https://openalex.org/keywords/context-free-language","display_name":"Context-free language","score":0.5192487239837646},{"id":"https://openalex.org/keywords/recursively-enumerable-set","display_name":"Recursively enumerable set","score":0.49121159315109253},{"id":"https://openalex.org/keywords/rule-based-machine-translation","display_name":"Rule-based machine translation","score":0.4570874869823456},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.45500844717025757},{"id":"https://openalex.org/keywords/monoid","display_name":"Monoid","score":0.41710731387138367},{"id":"https://openalex.org/keywords/word-problem","display_name":"Word problem (mathematics education)","score":0.4161831736564636},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.36926180124282837},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.309566468000412},{"id":"https://openalex.org/keywords/arithmetic","display_name":"Arithmetic","score":0.24403172731399536},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.20241454243659973}],"concepts":[{"id":"https://openalex.org/C203702658","wikidata":"https://www.wikidata.org/wiki/Q1073063","display_name":"Recursively enumerable language","level":2,"score":0.849188506603241},{"id":"https://openalex.org/C24858836","wikidata":"https://www.wikidata.org/wiki/Q844718","display_name":"Theory of computation","level":2,"score":0.7143974900245667},{"id":"https://openalex.org/C90805587","wikidata":"https://www.wikidata.org/wiki/Q10944557","display_name":"Word (group theory)","level":2,"score":0.6940467357635498},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.6390671730041504},{"id":"https://openalex.org/C92273848","wikidata":"https://www.wikidata.org/wiki/Q190913","display_name":"Chomsky hierarchy","level":3,"score":0.5756259560585022},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5604109764099121},{"id":"https://openalex.org/C198838072","wikidata":"https://www.wikidata.org/wiki/Q729271","display_name":"Context-free language","level":3,"score":0.5192487239837646},{"id":"https://openalex.org/C52703633","wikidata":"https://www.wikidata.org/wiki/Q676835","display_name":"Recursively enumerable set","level":3,"score":0.49121159315109253},{"id":"https://openalex.org/C53893814","wikidata":"https://www.wikidata.org/wiki/Q7378909","display_name":"Rule-based machine translation","level":2,"score":0.4570874869823456},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.45500844717025757},{"id":"https://openalex.org/C206901836","wikidata":"https://www.wikidata.org/wiki/Q208237","display_name":"Monoid","level":2,"score":0.41710731387138367},{"id":"https://openalex.org/C90988201","wikidata":"https://www.wikidata.org/wiki/Q255912","display_name":"Word problem (mathematics education)","level":2,"score":0.4161831736564636},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.36926180124282837},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.309566468000412},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.24403172731399536},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.20241454243659973},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf00264286","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf00264286","pdf_url":null,"source":{"id":"https://openalex.org/S84409463","display_name":"Acta Informatica","issn_l":"0001-5903","issn":["0001-5903","1432-0525"],"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":"Acta Informatica","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W1515624550","https://openalex.org/W2051419196","https://openalex.org/W2151989760","https://openalex.org/W2406505330","https://openalex.org/W2437148689","https://openalex.org/W2914032487"],"related_works":["https://openalex.org/W72426084","https://openalex.org/W1834284857","https://openalex.org/W2039140045","https://openalex.org/W2072965782","https://openalex.org/W4361868930","https://openalex.org/W1967684312","https://openalex.org/W2319243709","https://openalex.org/W2802995915","https://openalex.org/W2331518422","https://openalex.org/W1966543618"],"abstract_inverted_index":null,"counts_by_year":[{"year":2017,"cited_by_count":2},{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
