{"id":"https://openalex.org/W1536388237","doi":"https://doi.org/10.1007/3-540-44957-4_33","title":"Finding Tractable Formulas in NNF","display_name":"Finding Tractable Formulas in NNF","publication_year":2000,"publication_date":"2000-01-01","ids":{"openalex":"https://openalex.org/W1536388237","doi":"https://doi.org/10.1007/3-540-44957-4_33","mag":"1536388237"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-44957-4_33","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-44957-4_33","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/A5077076995","display_name":"Edgar Altamirano","orcid":null},"institutions":[{"id":"https://openalex.org/I4210131846","display_name":"Artificial Intelligence Research Institute","ror":"https://ror.org/03c0ach84","country_code":"ES","type":"facility","lineage":["https://openalex.org/I134820265","https://openalex.org/I4210131846"]},{"id":"https://openalex.org/I134820265","display_name":"Consejo Superior de Investigaciones Cient\u00edficas","ror":"https://ror.org/02gfc7t72","country_code":"ES","type":"funder","lineage":["https://openalex.org/I134820265"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Edgar Altamirano","raw_affiliation_strings":["Artificial Intelligence Research Institute (IIIA), Spanish Scientific Research Council (CSIC), Campus UAB, s/n, 08193, Bellaterra, Barcelona, Spain","Spanish Scientific Research Council, CSIC"],"affiliations":[{"raw_affiliation_string":"Artificial Intelligence Research Institute (IIIA), Spanish Scientific Research Council (CSIC), Campus UAB, s/n, 08193, Bellaterra, Barcelona, Spain","institution_ids":["https://openalex.org/I4210131846"]},{"raw_affiliation_string":"Spanish Scientific Research Council, CSIC","institution_ids":["https://openalex.org/I134820265"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5052647635","display_name":"G. Escalada-Imaz","orcid":null},"institutions":[{"id":"https://openalex.org/I134820265","display_name":"Consejo Superior de Investigaciones Cient\u00edficas","ror":"https://ror.org/02gfc7t72","country_code":"ES","type":"funder","lineage":["https://openalex.org/I134820265"]},{"id":"https://openalex.org/I4210131846","display_name":"Artificial Intelligence Research Institute","ror":"https://ror.org/03c0ach84","country_code":"ES","type":"facility","lineage":["https://openalex.org/I134820265","https://openalex.org/I4210131846"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Gon\u00e7al Escalada-Imaz","raw_affiliation_strings":["Artificial Intelligence Research Institute (IIIA), Spanish Scientific Research Council (CSIC), Campus UAB, s/n, 08193, Bellaterra, Barcelona, Spain","Spanish Scientific Research Council, CSIC"],"affiliations":[{"raw_affiliation_string":"Artificial Intelligence Research Institute (IIIA), Spanish Scientific Research Council (CSIC), Campus UAB, s/n, 08193, Bellaterra, Barcelona, Spain","institution_ids":["https://openalex.org/I4210131846"]},{"raw_affiliation_string":"Spanish Scientific Research Council, CSIC","institution_ids":["https://openalex.org/I134820265"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5077076995"],"corresponding_institution_ids":["https://openalex.org/I134820265","https://openalex.org/I4210131846"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":1.2034,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.79140049,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"493","last_page":"507"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11596","display_name":"Constraint Satisfaction and Optimization","score":0.9983000159263611,"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"}},"topics":[{"id":"https://openalex.org/T11596","display_name":"Constraint Satisfaction and Optimization","score":0.9983000159263611,"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"}},{"id":"https://openalex.org/T10142","display_name":"Formal Methods in Verification","score":0.9968000054359436,"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/T12072","display_name":"Machine Learning and Algorithms","score":0.9934999942779541,"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/computer-science","display_name":"Computer science","score":0.6522180438041687},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.6506035923957825},{"id":"https://openalex.org/keywords/french-horn","display_name":"French horn","score":0.6439542174339294},{"id":"https://openalex.org/keywords/horn-clause","display_name":"Horn clause","score":0.611929714679718},{"id":"https://openalex.org/keywords/negation","display_name":"Negation","score":0.6008570790290833},{"id":"https://openalex.org/keywords/conjunctive-normal-form","display_name":"Conjunctive normal form","score":0.5768781304359436},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.44455772638320923},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3868168592453003},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3408154845237732},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.32233554124832153},{"id":"https://openalex.org/keywords/prolog","display_name":"Prolog","score":0.22125095129013062},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.19465786218643188},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.1824895143508911}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6522180438041687},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.6506035923957825},{"id":"https://openalex.org/C152076505","wikidata":"https://www.wikidata.org/wiki/Q1126540","display_name":"French horn","level":2,"score":0.6439542174339294},{"id":"https://openalex.org/C189790780","wikidata":"https://www.wikidata.org/wiki/Q933932","display_name":"Horn clause","level":3,"score":0.611929714679718},{"id":"https://openalex.org/C2185349","wikidata":"https://www.wikidata.org/wiki/Q190558","display_name":"Negation","level":2,"score":0.6008570790290833},{"id":"https://openalex.org/C16221470","wikidata":"https://www.wikidata.org/wiki/Q846564","display_name":"Conjunctive normal form","level":2,"score":0.5768781304359436},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.44455772638320923},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3868168592453003},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3408154845237732},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.32233554124832153},{"id":"https://openalex.org/C81721847","wikidata":"https://www.wikidata.org/wiki/Q163468","display_name":"Prolog","level":2,"score":0.22125095129013062},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.19465786218643188},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.1824895143508911},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/3-540-44957-4_33","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-44957-4_33","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"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.26.6867","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.26.6867","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.iiia.csic.es/~ealtamir/pub/CL2000.ps","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4","score":0.6499999761581421}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":36,"referenced_works":["https://openalex.org/W50580918","https://openalex.org/W147061008","https://openalex.org/W411837330","https://openalex.org/W1491798581","https://openalex.org/W1495396426","https://openalex.org/W1592709139","https://openalex.org/W1924263108","https://openalex.org/W1950219843","https://openalex.org/W1965913970","https://openalex.org/W1974010251","https://openalex.org/W1974563688","https://openalex.org/W1978050007","https://openalex.org/W1978253773","https://openalex.org/W1981549588","https://openalex.org/W1985291745","https://openalex.org/W1998113645","https://openalex.org/W1999647826","https://openalex.org/W2003160050","https://openalex.org/W2011992362","https://openalex.org/W2018221833","https://openalex.org/W2031823362","https://openalex.org/W2036265926","https://openalex.org/W2040475127","https://openalex.org/W2061917453","https://openalex.org/W2066356146","https://openalex.org/W2071915991","https://openalex.org/W2079107830","https://openalex.org/W2084642537","https://openalex.org/W2084656180","https://openalex.org/W2092544922","https://openalex.org/W2103879019","https://openalex.org/W2144484693","https://openalex.org/W2401610261","https://openalex.org/W2509059819","https://openalex.org/W4231768017","https://openalex.org/W4298078965"],"related_works":["https://openalex.org/W2372612917","https://openalex.org/W1991403408","https://openalex.org/W1521840795","https://openalex.org/W2404351495","https://openalex.org/W2600034178","https://openalex.org/W328089188","https://openalex.org/W2542670467","https://openalex.org/W1808107509","https://openalex.org/W2064560955","https://openalex.org/W1599544148"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
