{"id":"https://openalex.org/W1979923127","doi":"https://doi.org/10.1023/a:1022637916400","title":"Rigel: An Inductive Learning System","display_name":"Rigel: An Inductive Learning System","publication_year":1991,"publication_date":"1991-01-01","ids":{"openalex":"https://openalex.org/W1979923127","doi":"https://doi.org/10.1023/a:1022637916400","mag":"1979923127"},"language":"en","primary_location":{"id":"doi:10.1023/a:1022637916400","is_oa":true,"landing_page_url":"https://doi.org/10.1023/a:1022637916400","pdf_url":"https://link.springer.com/content/pdf/10.1023/A:1022637916400.pdf","source":{"id":"https://openalex.org/S62148650","display_name":"Machine Learning","issn_l":"0885-6125","issn":["0885-6125","1573-0565"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Machine Learning","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://link.springer.com/content/pdf/10.1023/A:1022637916400.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5056510268","display_name":"Roberto Gemello","orcid":null},"institutions":[{"id":"https://openalex.org/I1298633626","display_name":"Telecom Italia Lab","ror":"https://ror.org/01rt74q71","country_code":"IT","type":"facility","lineage":["https://openalex.org/I1298633626","https://openalex.org/I137543953"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Roberto Gemello","raw_affiliation_strings":["Artificial Intelligence Department, CSELT, Via G. Reiss Romoli 274, 10148, Torino, Italy. UUNET!I2UNIX!CSELT!GEMELLO","CSELT, Artificial Intelligence Department, Via G. Reiss Romoli 274, 10148 Torino, Italy. UUNET!I2UNIX!CSELT!GEMELLO#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Artificial Intelligence Department, CSELT, Via G. Reiss Romoli 274, 10148, Torino, Italy. UUNET!I2UNIX!CSELT!GEMELLO","institution_ids":["https://openalex.org/I1298633626"]},{"raw_affiliation_string":"CSELT, Artificial Intelligence Department, Via G. Reiss Romoli 274, 10148 Torino, Italy. UUNET!I2UNIX!CSELT!GEMELLO#TAB#","institution_ids":["https://openalex.org/I1298633626"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048085326","display_name":"Franco Mana","orcid":null},"institutions":[{"id":"https://openalex.org/I1298633626","display_name":"Telecom Italia Lab","ror":"https://ror.org/01rt74q71","country_code":"IT","type":"facility","lineage":["https://openalex.org/I1298633626","https://openalex.org/I137543953"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Franco Mana","raw_affiliation_strings":["Artificial Intelligence Department, CSELT, Via G. Reiss Romoli 274, 10148, Torino, Italy. UUNET!I2UNIX!CSELT!GEMELLO","CSELT, Artificial Intelligence Department, Via G. Reiss Romoli 274, 10148 Torino, Italy. UUNET!I2UNIX!CSELT!MANA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Artificial Intelligence Department, CSELT, Via G. Reiss Romoli 274, 10148, Torino, Italy. UUNET!I2UNIX!CSELT!GEMELLO","institution_ids":["https://openalex.org/I1298633626"]},{"raw_affiliation_string":"CSELT, Artificial Intelligence Department, Via G. Reiss Romoli 274, 10148 Torino, Italy. UUNET!I2UNIX!CSELT!MANA","institution_ids":["https://openalex.org/I1298633626"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006349769","display_name":"Lorenza Saitta","orcid":null},"institutions":[{"id":"https://openalex.org/I55143463","display_name":"University of Turin","ror":"https://ror.org/048tbm396","country_code":"IT","type":"education","lineage":["https://openalex.org/I55143463"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Lorenza Saitta","raw_affiliation_strings":["Dipartimento di Informatica, Universita' di Torino, Corso Svizzera 185, 10149 Torino, Italy","Universita' di Torino, Dipartimento di Informatica, Corso Svizzera 185, 10149 Torino, Italy. SAITTA@ITOINFO.BITNET#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Informatica, Universita' di Torino, Corso Svizzera 185, 10149 Torino, Italy","institution_ids":["https://openalex.org/I55143463"]},{"raw_affiliation_string":"Universita' di Torino, Dipartimento di Informatica, Corso Svizzera 185, 10149 Torino, Italy. SAITTA@ITOINFO.BITNET#TAB#","institution_ids":["https://openalex.org/I55143463"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5006349769"],"corresponding_institution_ids":["https://openalex.org/I55143463"],"apc_list":{"value":2990,"currency":"USD","value_usd":2990},"apc_paid":null,"fwci":3.2792,"has_fulltext":true,"cited_by_count":18,"citation_normalized_percentile":{"value":0.91768999,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":null,"biblio":{"volume":"6","issue":"1","first_page":"7","last_page":"35"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12072","display_name":"Machine Learning and Algorithms","score":0.9994000196456909,"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/T12072","display_name":"Machine Learning and Algorithms","score":0.9994000196456909,"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/T10906","display_name":"AI-based Problem Solving and Planning","score":0.998199999332428,"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/T10820","display_name":"Fuzzy Logic and Control Systems","score":0.9853000044822693,"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":0.6482895612716675},{"id":"https://openalex.org/keywords/heuristic","display_name":"Heuristic","score":0.6077600121498108},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5740309953689575},{"id":"https://openalex.org/keywords/a-priori-and-a-posteriori","display_name":"A priori and a posteriori","score":0.5702646970748901},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.5547696352005005},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.5296114683151245},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.47517579793930054},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3901102542877197},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2200430929660797},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.15162402391433716},{"id":"https://openalex.org/keywords/epistemology","display_name":"Epistemology","score":0.12593135237693787}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6482895612716675},{"id":"https://openalex.org/C173801870","wikidata":"https://www.wikidata.org/wiki/Q201413","display_name":"Heuristic","level":2,"score":0.6077600121498108},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5740309953689575},{"id":"https://openalex.org/C75553542","wikidata":"https://www.wikidata.org/wiki/Q178161","display_name":"A priori and a posteriori","level":2,"score":0.5702646970748901},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.5547696352005005},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.5296114683151245},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.47517579793930054},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3901102542877197},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2200430929660797},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.15162402391433716},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.12593135237693787},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1023/a:1022637916400","is_oa":true,"landing_page_url":"https://doi.org/10.1023/a:1022637916400","pdf_url":"https://link.springer.com/content/pdf/10.1023/A:1022637916400.pdf","source":{"id":"https://openalex.org/S62148650","display_name":"Machine Learning","issn_l":"0885-6125","issn":["0885-6125","1573-0565"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Machine Learning","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1023/a:1022637916400","is_oa":true,"landing_page_url":"https://doi.org/10.1023/a:1022637916400","pdf_url":"https://link.springer.com/content/pdf/10.1023/A:1022637916400.pdf","source":{"id":"https://openalex.org/S62148650","display_name":"Machine Learning","issn_l":"0885-6125","issn":["0885-6125","1573-0565"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Machine Learning","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1979923127.pdf","grobid_xml":"https://content.openalex.org/works/W1979923127.grobid-xml"},"referenced_works_count":57,"referenced_works":["https://openalex.org/W13685231","https://openalex.org/W31157647","https://openalex.org/W64027854","https://openalex.org/W76382867","https://openalex.org/W83160502","https://openalex.org/W92063309","https://openalex.org/W112432080","https://openalex.org/W169418568","https://openalex.org/W201732946","https://openalex.org/W1488252886","https://openalex.org/W1532143104","https://openalex.org/W1543818864","https://openalex.org/W1554084136","https://openalex.org/W1569963244","https://openalex.org/W1573772481","https://openalex.org/W1579665324","https://openalex.org/W1580907625","https://openalex.org/W1593431730","https://openalex.org/W1596324102","https://openalex.org/W1604286369","https://openalex.org/W1773114222","https://openalex.org/W1970185999","https://openalex.org/W1970406594","https://openalex.org/W1975420837","https://openalex.org/W1994022788","https://openalex.org/W2009207944","https://openalex.org/W2028947716","https://openalex.org/W2029538739","https://openalex.org/W2032026209","https://openalex.org/W2052519853","https://openalex.org/W2067642555","https://openalex.org/W2101602574","https://openalex.org/W2149706766","https://openalex.org/W2159965310","https://openalex.org/W2165634733","https://openalex.org/W2180885055","https://openalex.org/W2285991186","https://openalex.org/W2335322260","https://openalex.org/W2345210353","https://openalex.org/W3161178760","https://openalex.org/W4233691971","https://openalex.org/W4233758922","https://openalex.org/W4236137412","https://openalex.org/W4236490218","https://openalex.org/W4238284510","https://openalex.org/W4244340606","https://openalex.org/W4248308907","https://openalex.org/W4249991499","https://openalex.org/W4255670184","https://openalex.org/W4256104642","https://openalex.org/W6603710913","https://openalex.org/W6629403180","https://openalex.org/W6634133977","https://openalex.org/W6634246166","https://openalex.org/W6634775797","https://openalex.org/W6684555807","https://openalex.org/W6817491142"],"related_works":["https://openalex.org/W4388311650","https://openalex.org/W1974056099","https://openalex.org/W4245343541","https://openalex.org/W2386077341","https://openalex.org/W563589758","https://openalex.org/W5922282","https://openalex.org/W2954004777","https://openalex.org/W2949638731","https://openalex.org/W2951102138","https://openalex.org/W4299447939"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2016-06-24T00:00:00"}