{"id":"https://openalex.org/W1983957380","doi":"https://doi.org/10.1016/0304-3975(89)90023-6","title":"A grammatical characterization of alternating pushdown automata","display_name":"A grammatical characterization of alternating pushdown automata","publication_year":1989,"publication_date":"1989-09-01","ids":{"openalex":"https://openalex.org/W1983957380","doi":"https://doi.org/10.1016/0304-3975(89)90023-6","mag":"1983957380"},"language":"en","primary_location":{"id":"doi:10.1016/0304-3975(89)90023-6","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0304-3975(89)90023-6","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/A5042693105","display_name":"Etsuro Moriya","orcid":null},"institutions":[{"id":"https://openalex.org/I20560788","display_name":"Tokyo Woman's Christian University","ror":"https://ror.org/03mb27p64","country_code":"JP","type":"education","lineage":["https://openalex.org/I20560788"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Etsuro Moriya","raw_affiliation_strings":["Department of Mathematics, Tokyo Woman's Christian University, Zenpukuji, Suginami-ku, Tokyo 167, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Tokyo Woman's Christian University, Zenpukuji, Suginami-ku, Tokyo 167, Japan","institution_ids":["https://openalex.org/I20560788"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5042693105"],"corresponding_institution_ids":["https://openalex.org/I20560788"],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":null,"fwci":0.9524,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.72767602,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"67","issue":"1","first_page":"75","last_page":"85"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","score":0.9998999834060669,"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":0.9998999834060669,"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":0.9994000196456909,"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":0.9948999881744385,"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/deterministic-pushdown-automaton","display_name":"Deterministic pushdown automaton","score":0.9127910733222961},{"id":"https://openalex.org/keywords/pushdown-automaton","display_name":"Pushdown automaton","score":0.8888227939605713},{"id":"https://openalex.org/keywords/embedded-pushdown-automaton","display_name":"Embedded pushdown automaton","score":0.8344228267669678},{"id":"https://openalex.org/keywords/context-free-language","display_name":"Context-free language","score":0.7076241374015808},{"id":"https://openalex.org/keywords/deterministic-context-free-grammar","display_name":"Deterministic context-free grammar","score":0.5528433918952942},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5248063802719116},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.5222088694572449},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.4548039138317108},{"id":"https://openalex.org/keywords/grammar","display_name":"Grammar","score":0.45162832736968994},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.4479024410247803},{"id":"https://openalex.org/keywords/nested-word","display_name":"Nested word","score":0.4303682744503021},{"id":"https://openalex.org/keywords/characterization","display_name":"Characterization (materials science)","score":0.4300021827220917},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.425092875957489},{"id":"https://openalex.org/keywords/context-free-grammar","display_name":"Context-free grammar","score":0.4108368456363678},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.35772329568862915},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.24022430181503296},{"id":"https://openalex.org/keywords/linguistics","display_name":"Linguistics","score":0.21160846948623657},{"id":"https://openalex.org/keywords/rule-based-machine-translation","display_name":"Rule-based machine translation","score":0.1999257206916809},{"id":"https://openalex.org/keywords/automata-theory","display_name":"Automata theory","score":0.17744949460029602},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.14698690176010132},{"id":"https://openalex.org/keywords/nondeterministic-finite-automaton","display_name":"Nondeterministic finite automaton","score":0.14277610182762146},{"id":"https://openalex.org/keywords/tree-adjoining-grammar","display_name":"Tree-adjoining grammar","score":0.1404482126235962},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.1391279399394989},{"id":"https://openalex.org/keywords/parsing","display_name":"Parsing","score":0.12376469373703003},{"id":"https://openalex.org/keywords/quantum-finite-automata","display_name":"Quantum finite automata","score":0.12172925472259521},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.08553099632263184},{"id":"https://openalex.org/keywords/philosophy","display_name":"Philosophy","score":0.05404612421989441},{"id":"https://openalex.org/keywords/history","display_name":"History","score":0.046128273010253906}],"concepts":[{"id":"https://openalex.org/C74919329","wikidata":"https://www.wikidata.org/wiki/Q378713","display_name":"Deterministic pushdown automaton","level":5,"score":0.9127910733222961},{"id":"https://openalex.org/C77944639","wikidata":"https://www.wikidata.org/wiki/Q751443","display_name":"Pushdown automaton","level":3,"score":0.8888227939605713},{"id":"https://openalex.org/C27034413","wikidata":"https://www.wikidata.org/wiki/Q5370010","display_name":"Embedded pushdown automaton","level":5,"score":0.8344228267669678},{"id":"https://openalex.org/C198838072","wikidata":"https://www.wikidata.org/wiki/Q729271","display_name":"Context-free language","level":3,"score":0.7076241374015808},{"id":"https://openalex.org/C177638518","wikidata":"https://www.wikidata.org/wiki/Q3435975","display_name":"Deterministic context-free grammar","level":5,"score":0.5528433918952942},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5248063802719116},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.5222088694572449},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.4548039138317108},{"id":"https://openalex.org/C26022165","wikidata":"https://www.wikidata.org/wiki/Q8091","display_name":"Grammar","level":2,"score":0.45162832736968994},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.4479024410247803},{"id":"https://openalex.org/C92117001","wikidata":"https://www.wikidata.org/wiki/Q6997829","display_name":"Nested word","level":5,"score":0.4303682744503021},{"id":"https://openalex.org/C2780841128","wikidata":"https://www.wikidata.org/wiki/Q5073781","display_name":"Characterization (materials science)","level":2,"score":0.4300021827220917},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.425092875957489},{"id":"https://openalex.org/C97212296","wikidata":"https://www.wikidata.org/wiki/Q338047","display_name":"Context-free grammar","level":3,"score":0.4108368456363678},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.35772329568862915},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.24022430181503296},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.21160846948623657},{"id":"https://openalex.org/C53893814","wikidata":"https://www.wikidata.org/wiki/Q7378909","display_name":"Rule-based machine translation","level":2,"score":0.1999257206916809},{"id":"https://openalex.org/C116248031","wikidata":"https://www.wikidata.org/wiki/Q214526","display_name":"Automata theory","level":3,"score":0.17744949460029602},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.14698690176010132},{"id":"https://openalex.org/C158008952","wikidata":"https://www.wikidata.org/wiki/Q617295","display_name":"Nondeterministic finite automaton","level":4,"score":0.14277610182762146},{"id":"https://openalex.org/C134083981","wikidata":"https://www.wikidata.org/wiki/Q1754022","display_name":"Tree-adjoining grammar","level":4,"score":0.1404482126235962},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.1391279399394989},{"id":"https://openalex.org/C186644900","wikidata":"https://www.wikidata.org/wiki/Q194152","display_name":"Parsing","level":2,"score":0.12376469373703003},{"id":"https://openalex.org/C174327141","wikidata":"https://www.wikidata.org/wiki/Q176837","display_name":"Quantum finite automata","level":4,"score":0.12172925472259521},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.08553099632263184},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.05404612421989441},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.046128273010253906},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0304-3975(89)90023-6","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0304-3975(89)90023-6","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":[{"display_name":"Quality Education","score":0.7699999809265137,"id":"https://metadata.un.org/sdg/4"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W1971842919","https://openalex.org/W1982449618","https://openalex.org/W2002089154","https://openalex.org/W2021647617","https://openalex.org/W2026191634","https://openalex.org/W2040655280","https://openalex.org/W2077819737","https://openalex.org/W2115587183","https://openalex.org/W2914032487","https://openalex.org/W3149462197","https://openalex.org/W4241108585","https://openalex.org/W4302339081","https://openalex.org/W6656927764","https://openalex.org/W6822517396"],"related_works":["https://openalex.org/W2067895928","https://openalex.org/W2472752294","https://openalex.org/W1486486721","https://openalex.org/W127918926","https://openalex.org/W2089141720","https://openalex.org/W214992615","https://openalex.org/W1972232894","https://openalex.org/W2171067235","https://openalex.org/W2068249429","https://openalex.org/W4206600150"],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-03-10T14:07:55.174380","created_date":"2025-10-10T00:00:00"}
