{"id":"https://openalex.org/W1485606779","doi":"https://doi.org/10.1007/978-3-540-28629-5_70","title":"Complexity of Decision Problems for Simple Regular Expressions","display_name":"Complexity of Decision Problems for Simple Regular Expressions","publication_year":2004,"publication_date":"2004-01-01","ids":{"openalex":"https://openalex.org/W1485606779","doi":"https://doi.org/10.1007/978-3-540-28629-5_70","mag":"1485606779"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-540-28629-5_70","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-28629-5_70","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","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/A5016412428","display_name":"Wim Martens","orcid":"https://orcid.org/0000-0001-9480-3522"},"institutions":[{"id":"https://openalex.org/I4210127597","display_name":"Transnational University Limburg","ror":"https://ror.org/02xyaf767","country_code":"BE","type":"education","lineage":["https://openalex.org/I4210127597"]}],"countries":["BE"],"is_corresponding":true,"raw_author_name":"Wim Martens","raw_affiliation_strings":["Limburgs Universitair Centrum, Universitaire Campus, B-3590, Diepenbeek, Belgium"],"affiliations":[{"raw_affiliation_string":"Limburgs Universitair Centrum, Universitaire Campus, B-3590, Diepenbeek, Belgium","institution_ids":["https://openalex.org/I4210127597"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022264843","display_name":"Frank Neven","orcid":"https://orcid.org/0000-0002-7143-1903"},"institutions":[{"id":"https://openalex.org/I4210127597","display_name":"Transnational University Limburg","ror":"https://ror.org/02xyaf767","country_code":"BE","type":"education","lineage":["https://openalex.org/I4210127597"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"Frank Neven","raw_affiliation_strings":["Limburgs Universitair Centrum, Universitaire Campus, B-3590, Diepenbeek, Belgium"],"affiliations":[{"raw_affiliation_string":"Limburgs Universitair Centrum, Universitaire Campus, B-3590, Diepenbeek, Belgium","institution_ids":["https://openalex.org/I4210127597"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5031710345","display_name":"Thomas Schwentick","orcid":"https://orcid.org/0000-0002-1062-922X"},"institutions":[{"id":"https://openalex.org/I161103922","display_name":"Philipps University of Marburg","ror":"https://ror.org/01rdrb571","country_code":"DE","type":"education","lineage":["https://openalex.org/I161103922"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Thomas Schwentick","raw_affiliation_strings":["Fachbereich 12, Mathematik und Informatik, Philipps Universit\u00e4t Marburg,"],"affiliations":[{"raw_affiliation_string":"Fachbereich 12, Mathematik und Informatik, Philipps Universit\u00e4t Marburg,","institution_ids":["https://openalex.org/I161103922"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5016412428"],"corresponding_institution_ids":["https://openalex.org/I4210127597"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":3.8657,"has_fulltext":false,"cited_by_count":56,"citation_normalized_percentile":{"value":0.94753363,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"889","last_page":"900"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11269","display_name":"Algorithms and Data Compression","score":0.9993000030517578,"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/T11269","display_name":"Algorithms and Data Compression","score":0.9993000030517578,"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/T10181","display_name":"Natural Language Processing Techniques","score":0.9986000061035156,"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.9983999729156494,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/equivalence","display_name":"Equivalence (formal languages)","score":0.6521198153495789},{"id":"https://openalex.org/keywords/xml","display_name":"XML","score":0.6326397061347961},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5392817854881287},{"id":"https://openalex.org/keywords/decision-problem","display_name":"Decision problem","score":0.5073460936546326},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.46879610419273376},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.4673863649368286},{"id":"https://openalex.org/keywords/intersection","display_name":"Intersection (aeronautics)","score":0.46393874287605286},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.44939595460891724},{"id":"https://openalex.org/keywords/regular-expression","display_name":"Regular expression","score":0.44438299536705017},{"id":"https://openalex.org/keywords/polynomial-hierarchy","display_name":"Polynomial hierarchy","score":0.4119739532470703},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3795055150985718},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.32207149267196655},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.19808202981948853},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.1176956295967102}],"concepts":[{"id":"https://openalex.org/C2780069185","wikidata":"https://www.wikidata.org/wiki/Q7977945","display_name":"Equivalence (formal languages)","level":2,"score":0.6521198153495789},{"id":"https://openalex.org/C8797682","wikidata":"https://www.wikidata.org/wiki/Q2115","display_name":"XML","level":2,"score":0.6326397061347961},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5392817854881287},{"id":"https://openalex.org/C115988155","wikidata":"https://www.wikidata.org/wiki/Q3262192","display_name":"Decision problem","level":2,"score":0.5073460936546326},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.46879610419273376},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.4673863649368286},{"id":"https://openalex.org/C64543145","wikidata":"https://www.wikidata.org/wiki/Q162942","display_name":"Intersection (aeronautics)","level":2,"score":0.46393874287605286},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.44939595460891724},{"id":"https://openalex.org/C121329065","wikidata":"https://www.wikidata.org/wiki/Q185612","display_name":"Regular expression","level":2,"score":0.44438299536705017},{"id":"https://openalex.org/C2776013622","wikidata":"https://www.wikidata.org/wiki/Q2103021","display_name":"Polynomial hierarchy","level":3,"score":0.4119739532470703},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3795055150985718},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.32207149267196655},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.19808202981948853},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.1176956295967102},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"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/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-540-28629-5_70","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-28629-5_70","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities","score":0.75}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W43380317","https://openalex.org/W203913868","https://openalex.org/W261652732","https://openalex.org/W1515993376","https://openalex.org/W1573061520","https://openalex.org/W1579407214","https://openalex.org/W1586140256","https://openalex.org/W1593303510","https://openalex.org/W1966814918","https://openalex.org/W1981870753","https://openalex.org/W1982206794","https://openalex.org/W1987205876","https://openalex.org/W1990483472","https://openalex.org/W1998084650","https://openalex.org/W2001621593","https://openalex.org/W2013618518","https://openalex.org/W2019789808","https://openalex.org/W2039529128","https://openalex.org/W2057185776","https://openalex.org/W2057841333","https://openalex.org/W2078015341","https://openalex.org/W2158405910","https://openalex.org/W2292993340"],"related_works":["https://openalex.org/W2161147766","https://openalex.org/W266537895","https://openalex.org/W1589381382","https://openalex.org/W1504200807","https://openalex.org/W2549774298","https://openalex.org/W2170336571","https://openalex.org/W2982557863","https://openalex.org/W4288319596","https://openalex.org/W4377009930","https://openalex.org/W2394942112"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":4}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
