{"id":"https://openalex.org/W1604215041","doi":"https://doi.org/10.1007/3-540-54444-5_111","title":"Unfolding \u2014 definition \u2014 folding, in this order, for avoiding unnecessary variables in logic programs","display_name":"Unfolding \u2014 definition \u2014 folding, in this order, for avoiding unnecessary variables in logic programs","publication_year":1991,"publication_date":"1991-01-01","ids":{"openalex":"https://openalex.org/W1604215041","doi":"https://doi.org/10.1007/3-540-54444-5_111","mag":"1604215041"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-54444-5_111","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-54444-5_111","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/A5025420559","display_name":"Maurizio Proietti","orcid":null},"institutions":[{"id":"https://openalex.org/I4210162062","display_name":"Istituto di Analisi dei Sistemi ed Informatica Antonio Ruberti","ror":"https://ror.org/054ye0e45","country_code":"IT","type":"facility","lineage":["https://openalex.org/I4210155236","https://openalex.org/I4210162062"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Maurizio Proietti","raw_affiliation_strings":["IASI-CNR, Viale Manzoni 30, Roma, Italy","IASI-CNR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"IASI-CNR, Viale Manzoni 30, Roma, Italy","institution_ids":["https://openalex.org/I4210162062"]},{"raw_affiliation_string":"IASI-CNR","institution_ids":["https://openalex.org/I4210162062"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5018873219","display_name":"Alberto Pettorossi","orcid":"https://orcid.org/0000-0001-7858-4032"},"institutions":[{"id":"https://openalex.org/I116067653","display_name":"University of Rome Tor Vergata","ror":"https://ror.org/02p77k626","country_code":"IT","type":"education","lineage":["https://openalex.org/I116067653"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Alberto Pettorossi","raw_affiliation_strings":["Electronics Department, University of Rome II, 00173, Rome, Italy","University of Rome II"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electronics Department, University of Rome II, 00173, Rome, Italy","institution_ids":["https://openalex.org/I116067653"]},{"raw_affiliation_string":"University of Rome II","institution_ids":["https://openalex.org/I116067653"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":9.8938,"has_fulltext":false,"cited_by_count":36,"citation_normalized_percentile":{"value":0.98659218,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"347","last_page":"358"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9998999834060669,"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/T10126","display_name":"Logic, programming, and type systems","score":0.9998999834060669,"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/T10142","display_name":"Formal Methods in Verification","score":0.9991999864578247,"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/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9990000128746033,"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":0.8119592666625977},{"id":"https://openalex.org/keywords/folding","display_name":"Folding (DSP implementation)","score":0.4948400855064392},{"id":"https://openalex.org/keywords/order","display_name":"Order (exchange)","score":0.4743422567844391},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.4562366008758545},{"id":"https://openalex.org/keywords/first-order-logic","display_name":"First-order logic","score":0.44348815083503723},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.4128147065639496},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3585910201072693}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8119592666625977},{"id":"https://openalex.org/C2776545253","wikidata":"https://www.wikidata.org/wiki/Q5464292","display_name":"Folding (DSP implementation)","level":2,"score":0.4948400855064392},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.4743422567844391},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.4562366008758545},{"id":"https://openalex.org/C100481476","wikidata":"https://www.wikidata.org/wiki/Q4055684","display_name":"First-order logic","level":2,"score":0.44348815083503723},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.4128147065639496},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3585910201072693},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/3-540-54444-5_111","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-54444-5_111","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":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W16194962","https://openalex.org/W65746148","https://openalex.org/W1541434994","https://openalex.org/W1575678657","https://openalex.org/W1581336022","https://openalex.org/W1992808564","https://openalex.org/W2001937661","https://openalex.org/W2023299380","https://openalex.org/W2044422265","https://openalex.org/W2056168527","https://openalex.org/W2092371432","https://openalex.org/W2208923056","https://openalex.org/W4206370914","https://openalex.org/W4235363020","https://openalex.org/W4248695203","https://openalex.org/W6600628903"],"related_works":["https://openalex.org/W2135396778","https://openalex.org/W4243252198","https://openalex.org/W2109507516","https://openalex.org/W1527862632","https://openalex.org/W2118300983","https://openalex.org/W2112962394","https://openalex.org/W3137189469","https://openalex.org/W2740990710","https://openalex.org/W4235530921","https://openalex.org/W2167798150"],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
