{"id":"https://openalex.org/W1955289261","doi":"https://doi.org/10.1016/j.tcs.2015.07.032","title":"Boundary sets of regular and context-free languages","display_name":"Boundary sets of regular and context-free languages","publication_year":2015,"publication_date":"2015-07-28","ids":{"openalex":"https://openalex.org/W1955289261","doi":"https://doi.org/10.1016/j.tcs.2015.07.032","mag":"1955289261"},"language":"en","primary_location":{"id":"doi:10.1016/j.tcs.2015.07.032","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.tcs.2015.07.032","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/A5016664760","display_name":"Markus Holzer","orcid":"https://orcid.org/0000-0003-4224-4014"},"institutions":[{"id":"https://openalex.org/I200763008","display_name":"Justus-Liebig-Universit\u00e4t Gie\u00dfen","ror":"https://ror.org/033eqas34","country_code":"DE","type":"education","lineage":["https://openalex.org/I200763008"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Markus Holzer","raw_affiliation_strings":["Institut f\u00fcr Informatik, Universit\u00e4t Giessen, Arndtstr. 2, 35392 Giessen, Germany#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Informatik, Universit\u00e4t Giessen, Arndtstr. 2, 35392 Giessen, Germany#TAB#","institution_ids":["https://openalex.org/I200763008"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056800220","display_name":"Sebastian Jakobi","orcid":null},"institutions":[{"id":"https://openalex.org/I200763008","display_name":"Justus-Liebig-Universit\u00e4t Gie\u00dfen","ror":"https://ror.org/033eqas34","country_code":"DE","type":"education","lineage":["https://openalex.org/I200763008"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Sebastian Jakobi","raw_affiliation_strings":["Institut f\u00fcr Informatik, Universit\u00e4t Giessen, Arndtstr. 2, 35392 Giessen, Germany#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Informatik, Universit\u00e4t Giessen, Arndtstr. 2, 35392 Giessen, Germany#TAB#","institution_ids":["https://openalex.org/I200763008"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":null,"fwci":0.3634,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.64615385,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"610","issue":null,"first_page":"59","last_page":"77"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","score":1.0,"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":1.0,"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/T12029","display_name":"DNA and Biological Computing","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12072","display_name":"Machine Learning and Algorithms","score":0.9979000091552734,"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/context-free-language","display_name":"Context-free language","score":0.653048038482666},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6320488452911377},{"id":"https://openalex.org/keywords/nondeterministic-algorithm","display_name":"Nondeterministic algorithm","score":0.6080500483512878},{"id":"https://openalex.org/keywords/boundary","display_name":"Boundary (topology)","score":0.5743821859359741},{"id":"https://openalex.org/keywords/regular-language","display_name":"Regular language","score":0.5657476782798767},{"id":"https://openalex.org/keywords/nondeterministic-finite-automaton","display_name":"Nondeterministic finite automaton","score":0.5248239636421204},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.5201926231384277},{"id":"https://openalex.org/keywords/deterministic-automaton","display_name":"Deterministic automaton","score":0.49079474806785583},{"id":"https://openalex.org/keywords/undecidable-problem","display_name":"Undecidable problem","score":0.45356863737106323},{"id":"https://openalex.org/keywords/formal-language","display_name":"Formal language","score":0.4437265992164612},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.43406933546066284},{"id":"https://openalex.org/keywords/abstract-family-of-languages","display_name":"Abstract family of languages","score":0.4328608810901642},{"id":"https://openalex.org/keywords/deterministic-finite-automaton","display_name":"Deterministic finite automaton","score":0.4322618544101715},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.41188061237335205},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.32080137729644775},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.21890097856521606},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.21055254340171814},{"id":"https://openalex.org/keywords/finite-state-machine","display_name":"Finite-state machine","score":0.19767743349075317},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.16912856698036194},{"id":"https://openalex.org/keywords/automata-theory","display_name":"Automata theory","score":0.16529855132102966},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.15886765718460083},{"id":"https://openalex.org/keywords/decidability","display_name":"Decidability","score":0.1276244819164276},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.0836314857006073}],"concepts":[{"id":"https://openalex.org/C198838072","wikidata":"https://www.wikidata.org/wiki/Q729271","display_name":"Context-free language","level":3,"score":0.653048038482666},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6320488452911377},{"id":"https://openalex.org/C176181172","wikidata":"https://www.wikidata.org/wiki/Q3490301","display_name":"Nondeterministic algorithm","level":2,"score":0.6080500483512878},{"id":"https://openalex.org/C62354387","wikidata":"https://www.wikidata.org/wiki/Q875399","display_name":"Boundary (topology)","level":2,"score":0.5743821859359741},{"id":"https://openalex.org/C52370388","wikidata":"https://www.wikidata.org/wiki/Q752532","display_name":"Regular language","level":3,"score":0.5657476782798767},{"id":"https://openalex.org/C158008952","wikidata":"https://www.wikidata.org/wiki/Q617295","display_name":"Nondeterministic finite automaton","level":4,"score":0.5248239636421204},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5201926231384277},{"id":"https://openalex.org/C194525867","wikidata":"https://www.wikidata.org/wiki/Q5265707","display_name":"Deterministic automaton","level":3,"score":0.49079474806785583},{"id":"https://openalex.org/C192034797","wikidata":"https://www.wikidata.org/wiki/Q3502995","display_name":"Undecidable problem","level":3,"score":0.45356863737106323},{"id":"https://openalex.org/C146072743","wikidata":"https://www.wikidata.org/wiki/Q192161","display_name":"Formal language","level":2,"score":0.4437265992164612},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.43406933546066284},{"id":"https://openalex.org/C199163288","wikidata":"https://www.wikidata.org/wiki/Q3065587","display_name":"Abstract family of languages","level":5,"score":0.4328608810901642},{"id":"https://openalex.org/C104091681","wikidata":"https://www.wikidata.org/wiki/Q837528","display_name":"Deterministic finite automaton","level":3,"score":0.4322618544101715},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.41188061237335205},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.32080137729644775},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.21890097856521606},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.21055254340171814},{"id":"https://openalex.org/C167822520","wikidata":"https://www.wikidata.org/wiki/Q176452","display_name":"Finite-state machine","level":2,"score":0.19767743349075317},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.16912856698036194},{"id":"https://openalex.org/C116248031","wikidata":"https://www.wikidata.org/wiki/Q214526","display_name":"Automata theory","level":3,"score":0.16529855132102966},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.15886765718460083},{"id":"https://openalex.org/C153269930","wikidata":"https://www.wikidata.org/wiki/Q430001","display_name":"Decidability","level":2,"score":0.1276244819164276},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0836314857006073},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C53893814","wikidata":"https://www.wikidata.org/wiki/Q7378909","display_name":"Rule-based machine translation","level":2,"score":0.0},{"id":"https://openalex.org/C50033165","wikidata":"https://www.wikidata.org/wiki/Q15712089","display_name":"Inductive programming","level":3,"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/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C11164408","wikidata":"https://www.wikidata.org/wiki/Q18657800","display_name":"Second-generation programming language","level":4,"score":0.0},{"id":"https://openalex.org/C34165917","wikidata":"https://www.wikidata.org/wiki/Q188267","display_name":"Programming paradigm","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.tcs.2015.07.032","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.tcs.2015.07.032","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","score":0.5099999904632568,"display_name":"Quality Education"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":28,"referenced_works":["https://openalex.org/W12503799","https://openalex.org/W956032893","https://openalex.org/W1535681052","https://openalex.org/W1561603101","https://openalex.org/W1778210529","https://openalex.org/W1989887898","https://openalex.org/W2039529128","https://openalex.org/W2040834199","https://openalex.org/W2043360684","https://openalex.org/W2111868903","https://openalex.org/W2396312209","https://openalex.org/W2475482660","https://openalex.org/W2487459156","https://openalex.org/W2912091494","https://openalex.org/W2912984734","https://openalex.org/W2914032487","https://openalex.org/W2950055984","https://openalex.org/W3023466934","https://openalex.org/W4230665353","https://openalex.org/W4255503374","https://openalex.org/W6633685229","https://openalex.org/W6638089688","https://openalex.org/W6660559572","https://openalex.org/W6712405475","https://openalex.org/W6721247178","https://openalex.org/W6759367340","https://openalex.org/W6836588012","https://openalex.org/W7008717140"],"related_works":["https://openalex.org/W2810776027","https://openalex.org/W2003664089","https://openalex.org/W2136740376","https://openalex.org/W2037872771","https://openalex.org/W2243509623","https://openalex.org/W1983100634","https://openalex.org/W2047588061","https://openalex.org/W2950941115","https://openalex.org/W1804899877","https://openalex.org/W807058306"],"abstract_inverted_index":null,"counts_by_year":[{"year":2017,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
