{"id":"https://openalex.org/W187788765","doi":"https://doi.org/10.1007/978-3-642-31644-9_10","title":"Hairpin Lengthening and Shortening of Regular Languages","display_name":"Hairpin Lengthening and Shortening of Regular Languages","publication_year":2012,"publication_date":"2012-01-01","ids":{"openalex":"https://openalex.org/W187788765","doi":"https://doi.org/10.1007/978-3-642-31644-9_10","mag":"187788765"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-642-31644-9_10","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-31644-9_10","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":"conference-paper","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/A5006548981","display_name":"Flor\u00edn Manea","orcid":"https://orcid.org/0000-0001-6094-3324"},"institutions":[{"id":"https://openalex.org/I32021983","display_name":"Christian-Albrechts-Universit\u00e4t zu Kiel","ror":"https://ror.org/04v76ef78","country_code":"DE","type":"education","lineage":["https://openalex.org/I32021983"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Florin Manea","raw_affiliation_strings":["Institut f\u00fcr Informatik, Christian-Albrechts-Universit\u00e4t zu Kiel, Kiel, Germany","Christian-Albrechts-Universit\u00c4t zu Kiel"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr Informatik, Christian-Albrechts-Universit\u00e4t zu Kiel, Kiel, Germany","institution_ids":["https://openalex.org/I32021983"]},{"raw_affiliation_string":"Christian-Albrechts-Universit\u00c4t zu Kiel","institution_ids":["https://openalex.org/I32021983"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049507611","display_name":"Robert Merca\u015f","orcid":"https://orcid.org/0000-0001-6034-433X"},"institutions":[{"id":"https://openalex.org/I95793202","display_name":"Otto-von-Guericke-Universit\u00e4t Magdeburg","ror":"https://ror.org/00ggpsq73","country_code":"DE","type":"education","lineage":["https://openalex.org/I95793202"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Robert Mercas","raw_affiliation_strings":["Facult\u00e4t f\u00fcr Informatik, Otto-von-Guericke-Universit\u00e4t Magdeburg, Magdeburg, Germany","Otto-von-Guericke-Universit\u00e4t Magdeburg"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Facult\u00e4t f\u00fcr Informatik, Otto-von-Guericke-Universit\u00e4t Magdeburg, Magdeburg, Germany","institution_ids":["https://openalex.org/I95793202"]},{"raw_affiliation_string":"Otto-von-Guericke-Universit\u00e4t Magdeburg","institution_ids":["https://openalex.org/I95793202"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5055787693","display_name":"V\u00edctor Mitrana","orcid":"https://orcid.org/0000-0002-1457-8933"},"institutions":[{"id":"https://openalex.org/I88060688","display_name":"Universidad Polit\u00e9cnica de Madrid","ror":"https://ror.org/03n6nwv02","country_code":"ES","type":"education","lineage":["https://openalex.org/I88060688"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Victor Mitrana","raw_affiliation_strings":["Department of Organization and Structure of Information, University School of Informatics, Polytechnic University of Madrid, Madrid, Spain","University School of Informatics Polytechnic University of Madrid"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Organization and Structure of Information, University School of Informatics, Polytechnic University of Madrid, Madrid, Spain","institution_ids":["https://openalex.org/I88060688"]},{"raw_affiliation_string":"University School of Informatics Polytechnic University of Madrid","institution_ids":["https://openalex.org/I88060688"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"145","last_page":"159"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12029","display_name":"DNA and Biological Computing","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T12029","display_name":"DNA and Biological Computing","score":1.0,"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/T11567","display_name":"semigroups and automata theory","score":0.9993000030517578,"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/T10207","display_name":"Advanced biosensing and bioanalysis techniques","score":0.9987999796867371,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/iterated-function","display_name":"Iterated function","score":0.8442471027374268},{"id":"https://openalex.org/keywords/regular-language","display_name":"Regular language","score":0.7043577432632446},{"id":"https://openalex.org/keywords/formal-language","display_name":"Formal language","score":0.6641832590103149},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6052331924438477},{"id":"https://openalex.org/keywords/closure","display_name":"Closure (psychology)","score":0.5918073058128357},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.5143560171127319},{"id":"https://openalex.org/keywords/regular-expression","display_name":"Regular expression","score":0.4949471354484558},{"id":"https://openalex.org/keywords/inverse","display_name":"Inverse","score":0.44535332918167114},{"id":"https://openalex.org/keywords/loop","display_name":"Loop (graph theory)","score":0.43688762187957764},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.37454381585121155},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.32567131519317627},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.3221229314804077},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.2352772057056427},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.22672292590141296},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.16289746761322021},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.0797988772392273},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.05779176950454712}],"concepts":[{"id":"https://openalex.org/C140479938","wikidata":"https://www.wikidata.org/wiki/Q5254619","display_name":"Iterated function","level":2,"score":0.8442471027374268},{"id":"https://openalex.org/C52370388","wikidata":"https://www.wikidata.org/wiki/Q752532","display_name":"Regular language","level":3,"score":0.7043577432632446},{"id":"https://openalex.org/C146072743","wikidata":"https://www.wikidata.org/wiki/Q192161","display_name":"Formal language","level":2,"score":0.6641832590103149},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6052331924438477},{"id":"https://openalex.org/C146834321","wikidata":"https://www.wikidata.org/wiki/Q2979672","display_name":"Closure (psychology)","level":2,"score":0.5918073058128357},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.5143560171127319},{"id":"https://openalex.org/C121329065","wikidata":"https://www.wikidata.org/wiki/Q185612","display_name":"Regular expression","level":2,"score":0.4949471354484558},{"id":"https://openalex.org/C207467116","wikidata":"https://www.wikidata.org/wiki/Q4385666","display_name":"Inverse","level":2,"score":0.44535332918167114},{"id":"https://openalex.org/C184670325","wikidata":"https://www.wikidata.org/wiki/Q512604","display_name":"Loop (graph theory)","level":2,"score":0.43688762187957764},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.37454381585121155},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.32567131519317627},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.3221229314804077},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.2352772057056427},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.22672292590141296},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.16289746761322021},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0797988772392273},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.05779176950454712},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"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/C34447519","wikidata":"https://www.wikidata.org/wiki/Q179522","display_name":"Market economy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-642-31644-9_10","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-31644-9_10","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":[{"score":0.5799999833106995,"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":27,"referenced_works":["https://openalex.org/W43688602","https://openalex.org/W81298477","https://openalex.org/W191395097","https://openalex.org/W1501003016","https://openalex.org/W1514051560","https://openalex.org/W1522798115","https://openalex.org/W1554469734","https://openalex.org/W1562193608","https://openalex.org/W1584587517","https://openalex.org/W1586668623","https://openalex.org/W1987516575","https://openalex.org/W1988320644","https://openalex.org/W2005930353","https://openalex.org/W2014204359","https://openalex.org/W2018845878","https://openalex.org/W2058038744","https://openalex.org/W2058727381","https://openalex.org/W2086434437","https://openalex.org/W2141443363","https://openalex.org/W2165177622","https://openalex.org/W2171114940","https://openalex.org/W2180809675","https://openalex.org/W2479946866","https://openalex.org/W2502634929","https://openalex.org/W2911318729","https://openalex.org/W4211263590","https://openalex.org/W6635121352"],"related_works":["https://openalex.org/W2964091527","https://openalex.org/W1582705003","https://openalex.org/W2603910788","https://openalex.org/W2105843429","https://openalex.org/W2280368318","https://openalex.org/W4285172450","https://openalex.org/W187788765","https://openalex.org/W4376863261","https://openalex.org/W2952430269","https://openalex.org/W4297878330"],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}