{"id":"https://openalex.org/W2073577522","doi":"https://doi.org/10.1016/s0304-3975(02)00543-1","title":"On the closure properties of linear conjunctive languages","display_name":"On the closure properties of linear conjunctive languages","publication_year":2003,"publication_date":"2003-04-01","ids":{"openalex":"https://openalex.org/W2073577522","doi":"https://doi.org/10.1016/s0304-3975(02)00543-1","mag":"2073577522"},"language":"en","primary_location":{"id":"doi:10.1016/s0304-3975(02)00543-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0304-3975(02)00543-1","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/A5005683089","display_name":"Alexander Okhotin","orcid":null},"institutions":[{"id":"https://openalex.org/I204722609","display_name":"Queen's University","ror":"https://ror.org/02y72wh86","country_code":"CA","type":"education","lineage":["https://openalex.org/I204722609"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Alexander Okhotin","raw_affiliation_strings":["Department of Computing and Information Science, Queen's University, Kingston, Ont., Canada K7L3N6"],"affiliations":[{"raw_affiliation_string":"Department of Computing and Information Science, Queen's University, Kingston, Ont., Canada K7L3N6","institution_ids":["https://openalex.org/I204722609"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5005683089"],"corresponding_institution_ids":["https://openalex.org/I204722609"],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":null,"fwci":3.2731,"has_fulltext":false,"cited_by_count":26,"citation_normalized_percentile":{"value":0.92315082,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"299","issue":"1-3","first_page":"663","last_page":"685"},"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":0.9948999881744385,"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/T10181","display_name":"Natural Language Processing Techniques","score":0.992900013923645,"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/indexed-grammar","display_name":"Indexed grammar","score":0.702052891254425},{"id":"https://openalex.org/keywords/context-sensitive-grammar","display_name":"Context-sensitive grammar","score":0.6030924916267395},{"id":"https://openalex.org/keywords/closure","display_name":"Closure (psychology)","score":0.5517963767051697},{"id":"https://openalex.org/keywords/context-free-grammar","display_name":"Context-free grammar","score":0.5256527662277222},{"id":"https://openalex.org/keywords/definite-clause-grammar","display_name":"Definite clause grammar","score":0.49604830145835876},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.49187326431274414},{"id":"https://openalex.org/keywords/l-attributed-grammar","display_name":"L-attributed grammar","score":0.486114501953125},{"id":"https://openalex.org/keywords/phrase-structure-grammar","display_name":"Phrase structure grammar","score":0.47852954268455505},{"id":"https://openalex.org/keywords/rule-based-machine-translation","display_name":"Rule-based machine translation","score":0.47499600052833557},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.43316057324409485},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4326787292957306},{"id":"https://openalex.org/keywords/tree-adjoining-grammar","display_name":"Tree-adjoining grammar","score":0.42671722173690796},{"id":"https://openalex.org/keywords/context-free-language","display_name":"Context-free language","score":0.42056265473365784},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.15861675143241882}],"concepts":[{"id":"https://openalex.org/C79243999","wikidata":"https://www.wikidata.org/wiki/Q6590011","display_name":"Indexed grammar","level":5,"score":0.702052891254425},{"id":"https://openalex.org/C125950753","wikidata":"https://www.wikidata.org/wiki/Q908674","display_name":"Context-sensitive grammar","level":4,"score":0.6030924916267395},{"id":"https://openalex.org/C146834321","wikidata":"https://www.wikidata.org/wiki/Q2979672","display_name":"Closure (psychology)","level":2,"score":0.5517963767051697},{"id":"https://openalex.org/C97212296","wikidata":"https://www.wikidata.org/wiki/Q338047","display_name":"Context-free grammar","level":3,"score":0.5256527662277222},{"id":"https://openalex.org/C97169998","wikidata":"https://www.wikidata.org/wiki/Q1582738","display_name":"Definite clause grammar","level":5,"score":0.49604830145835876},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.49187326431274414},{"id":"https://openalex.org/C67621940","wikidata":"https://www.wikidata.org/wiki/Q3113340","display_name":"L-attributed grammar","level":4,"score":0.486114501953125},{"id":"https://openalex.org/C29184939","wikidata":"https://www.wikidata.org/wiki/Q1134367","display_name":"Phrase structure grammar","level":4,"score":0.47852954268455505},{"id":"https://openalex.org/C53893814","wikidata":"https://www.wikidata.org/wiki/Q7378909","display_name":"Rule-based machine translation","level":2,"score":0.47499600052833557},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.43316057324409485},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4326787292957306},{"id":"https://openalex.org/C134083981","wikidata":"https://www.wikidata.org/wiki/Q1754022","display_name":"Tree-adjoining grammar","level":4,"score":0.42671722173690796},{"id":"https://openalex.org/C198838072","wikidata":"https://www.wikidata.org/wiki/Q729271","display_name":"Context-free language","level":3,"score":0.42056265473365784},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.15861675143241882},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C34447519","wikidata":"https://www.wikidata.org/wiki/Q179522","display_name":"Market economy","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/s0304-3975(02)00543-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0304-3975(02)00543-1","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"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.16.6255","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.16.6255","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://hirvi.cs.queensu.ca/conjunctive/linear_closure.ps","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6299999952316284,"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W1497949336","https://openalex.org/W1512779672","https://openalex.org/W1890888469","https://openalex.org/W1965673983","https://openalex.org/W1975653808","https://openalex.org/W1984086143","https://openalex.org/W1997498459","https://openalex.org/W2004071995","https://openalex.org/W2039393392","https://openalex.org/W2042079117","https://openalex.org/W2063554457","https://openalex.org/W2089236668","https://openalex.org/W2090004024","https://openalex.org/W2148302312","https://openalex.org/W2185277039","https://openalex.org/W4255229918","https://openalex.org/W6639277472","https://openalex.org/W6672849001","https://openalex.org/W6686540171"],"related_works":["https://openalex.org/W4388481545","https://openalex.org/W2403874525","https://openalex.org/W2894632713","https://openalex.org/W1970209336","https://openalex.org/W2072482659","https://openalex.org/W2117111784","https://openalex.org/W2159979565","https://openalex.org/W2098975473","https://openalex.org/W1619395143","https://openalex.org/W2036219509"],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}