{"id":"https://openalex.org/W2282429601","doi":"https://doi.org/10.1109/tfuzz.2015.2451692","title":"A Historical Account of Types of Fuzzy Sets and Their Relationships","display_name":"A Historical Account of Types of Fuzzy Sets and Their Relationships","publication_year":2015,"publication_date":"2015-07-07","ids":{"openalex":"https://openalex.org/W2282429601","doi":"https://doi.org/10.1109/tfuzz.2015.2451692","mag":"2282429601"},"language":"en","primary_location":{"id":"doi:10.1109/tfuzz.2015.2451692","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tfuzz.2015.2451692","pdf_url":null,"source":{"id":"https://openalex.org/S134177497","display_name":"IEEE Transactions on Fuzzy Systems","issn_l":"1063-6706","issn":["1063-6706","1941-0034"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Fuzzy Systems","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://academica-e.unavarra.es/bitstreams/e0b606e6-f38b-4e94-bb16-52a4ed1b2513/download","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5049375194","display_name":"Humberto Bustince","orcid":"https://orcid.org/0000-0002-1279-6195"},"institutions":[{"id":"https://openalex.org/I175051016","display_name":"Universidad P\u00fablica de Navarra (UPNA)","ror":"https://ror.org/02z0cah89","country_code":"ES","type":"education","lineage":["https://openalex.org/I175051016"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Humberto Bustince","raw_affiliation_strings":["Departamento de Autom\u00e1tica y Computaci\u00f3n, Universidad P\u00fablica de Navarra, Pamplona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Autom\u00e1tica y Computaci\u00f3n, Universidad P\u00fablica de Navarra, Pamplona, Spain","institution_ids":["https://openalex.org/I175051016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018271540","display_name":"Edurne Barrenechea","orcid":"https://orcid.org/0000-0001-6657-948X"},"institutions":[{"id":"https://openalex.org/I175051016","display_name":"Universidad P\u00fablica de Navarra (UPNA)","ror":"https://ror.org/02z0cah89","country_code":"ES","type":"education","lineage":["https://openalex.org/I175051016"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Edurne Barrenechea","raw_affiliation_strings":["Departamento de Autom\u00e1tica y Computaci\u00f3n, Universidad P\u00fablica de Navarra, Pamplona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Autom\u00e1tica y Computaci\u00f3n, Universidad P\u00fablica de Navarra, Pamplona, Spain","institution_ids":["https://openalex.org/I175051016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025439545","display_name":"Miguel Pagola","orcid":"https://orcid.org/0000-0003-4764-5298"},"institutions":[{"id":"https://openalex.org/I175051016","display_name":"Universidad P\u00fablica de Navarra (UPNA)","ror":"https://ror.org/02z0cah89","country_code":"ES","type":"education","lineage":["https://openalex.org/I175051016"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Miguel Pagola","raw_affiliation_strings":["Departamento de Autom\u00e1tica y Computaci\u00f3n, Universidad P\u00fablica de Navarra, Pamplona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Autom\u00e1tica y Computaci\u00f3n, Universidad P\u00fablica de Navarra, Pamplona, Spain","institution_ids":["https://openalex.org/I175051016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085226753","display_name":"Javier Fern\u00e1ndez","orcid":"https://orcid.org/0000-0003-4427-3935"},"institutions":[{"id":"https://openalex.org/I175051016","display_name":"Universidad P\u00fablica de Navarra (UPNA)","ror":"https://ror.org/02z0cah89","country_code":"ES","type":"education","lineage":["https://openalex.org/I175051016"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Javier Fernandez","raw_affiliation_strings":["Departamento de Autom\u00e1tica y Computaci\u00f3n, Universidad P\u00fablica de Navarra, Pamplona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Autom\u00e1tica y Computaci\u00f3n, Universidad P\u00fablica de Navarra, Pamplona, Spain","institution_ids":["https://openalex.org/I175051016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100437308","display_name":"Zeshui Xu","orcid":"https://orcid.org/0000-0003-3547-2908"},"institutions":[{"id":"https://openalex.org/I24185976","display_name":"Sichuan University","ror":"https://ror.org/011ashp19","country_code":"CN","type":"education","lineage":["https://openalex.org/I24185976"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zeshui Xu","raw_affiliation_strings":["Business School, Sichuan University, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Business School, Sichuan University, Chengdu, China","institution_ids":["https://openalex.org/I24185976"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004002970","display_name":"Benjam\u00edn Bedregal","orcid":"https://orcid.org/0000-0002-6757-7934"},"institutions":[{"id":"https://openalex.org/I35046152","display_name":"Universidade Federal do Rio Grande do Norte","ror":"https://ror.org/04wn09761","country_code":"BR","type":"education","lineage":["https://openalex.org/I35046152"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Benjamin Bedregal","raw_affiliation_strings":["Departamento de Inform\u00e1tica e Matem\u00e1tica Aplicada, Universidade Federal do Rio Grande do Norte, Natal, Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Inform\u00e1tica e Matem\u00e1tica Aplicada, Universidade Federal do Rio Grande do Norte, Natal, Brazil","institution_ids":["https://openalex.org/I35046152"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044198609","display_name":"Javier Montero","orcid":"https://orcid.org/0000-0001-8333-2155"},"institutions":[{"id":"https://openalex.org/I121748325","display_name":"Universidad Complutense de Madrid","ror":"https://ror.org/02p0gd045","country_code":"ES","type":"education","lineage":["https://openalex.org/I121748325"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Javier Montero","raw_affiliation_strings":["Facultad de Ciencias Matem\u00e1ticas, Universidad Complutense de Madrid, Madrid, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Facultad de Ciencias Matem\u00e1ticas, Universidad Complutense de Madrid, Madrid, Spain","institution_ids":["https://openalex.org/I121748325"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041176153","display_name":"Hani Hagras","orcid":"https://orcid.org/0000-0002-2818-5292"},"institutions":[{"id":"https://openalex.org/I110002522","display_name":"University of Essex","ror":"https://ror.org/02nkf1q06","country_code":"GB","type":"education","lineage":["https://openalex.org/I110002522"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Hani Hagras","raw_affiliation_strings":["Computational Intelligence Centre, School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computational Intelligence Centre, School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045016749","display_name":"Francisco Herrera","orcid":"https://orcid.org/0000-0002-7283-312X"},"institutions":[{"id":"https://openalex.org/I173304897","display_name":"Universidad de Granada","ror":"https://ror.org/04njjy449","country_code":"ES","type":"education","lineage":["https://openalex.org/I173304897"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Francisco Herrera","raw_affiliation_strings":["Department of Computation and Artificial Intelligence, CITIC-UGR, Universidad de Granada, Granada, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computation and Artificial Intelligence, CITIC-UGR, Universidad de Granada, Granada, Spain","institution_ids":["https://openalex.org/I173304897"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5012437460","display_name":"Bernard De Baets","orcid":"https://orcid.org/0000-0002-3876-620X"},"institutions":[{"id":"https://openalex.org/I32597200","display_name":"Ghent University","ror":"https://ror.org/00cv9y106","country_code":"BE","type":"education","lineage":["https://openalex.org/I32597200"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"Bernard De Baets","raw_affiliation_strings":["Department of Mathematical Modelling, Statistics and Bioinformatics, Ghent University, Gent, Belgium"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematical Modelling, Statistics and Bioinformatics, Ghent University, Gent, Belgium","institution_ids":["https://openalex.org/I32597200"]}]}],"institutions":[],"countries_distinct_count":5,"institutions_distinct_count":10,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":60.928,"has_fulltext":true,"cited_by_count":459,"citation_normalized_percentile":{"value":0.9996711,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"24","issue":"1","first_page":"179","last_page":"194"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10050","display_name":"Multi-Criteria Decision Making","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10050","display_name":"Multi-Criteria Decision Making","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10820","display_name":"Fuzzy Logic and Control Systems","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"}},{"id":"https://openalex.org/T11063","display_name":"Rough Sets and Fuzzy Logic","score":0.9947999715805054,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/fuzzy-set","display_name":"Fuzzy set","score":0.6654712557792664},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.592460036277771},{"id":"https://openalex.org/keywords/fuzzy-logic","display_name":"Fuzzy logic","score":0.5895993709564209},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.44095301628112793},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4022182822227478},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3991280496120453},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3749690353870392}],"concepts":[{"id":"https://openalex.org/C42011625","wikidata":"https://www.wikidata.org/wiki/Q1055058","display_name":"Fuzzy set","level":3,"score":0.6654712557792664},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.592460036277771},{"id":"https://openalex.org/C58166","wikidata":"https://www.wikidata.org/wiki/Q224821","display_name":"Fuzzy logic","level":2,"score":0.5895993709564209},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.44095301628112793},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4022182822227478},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3991280496120453},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3749690353870392}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1109/tfuzz.2015.2451692","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tfuzz.2015.2451692","pdf_url":null,"source":{"id":"https://openalex.org/S134177497","display_name":"IEEE Transactions on Fuzzy Systems","issn_l":"1063-6706","issn":["1063-6706","1941-0034"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Fuzzy Systems","raw_type":"journal-article"},{"id":"pmh:oai:digibug.ugr.es:10481/62847","is_oa":false,"landing_page_url":"http://hdl.handle.net/10481/62847","pdf_url":null,"source":{"id":"https://openalex.org/S4306400567","display_name":"Institutional Repository of the University of Granada (University of Granada)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I173304897","host_organization_name":"Universidad de Granada","host_organization_lineage":["https://openalex.org/I173304897"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:academica-e.unavarra.es:2454/32795","is_oa":true,"landing_page_url":"https://hdl.handle.net/2454/32795","pdf_url":"https://academica-e.unavarra.es/bitstreams/e0b606e6-f38b-4e94-bb16-52a4ed1b2513/download","source":{"id":"https://openalex.org/S4306402560","display_name":"Academica-e (Universidad P\u00fablica de Navarra)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I175051016","host_organization_name":"Universidad P\u00fablica de Navarra (UPNA)","host_organization_lineage":["https://openalex.org/I175051016"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/acceptedVersion"},{"id":"pmh:oai:archive.ugent.be:7167151","is_oa":false,"landing_page_url":"http://hdl.handle.net/1854/LU-7167151","pdf_url":null,"source":{"id":"https://openalex.org/S4306400478","display_name":"Ghent University Academic Bibliography (Ghent University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I32597200","host_organization_name":"Ghent University","host_organization_lineage":["https://openalex.org/I32597200"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ISSN: 1063-6706","raw_type":"info:eu-repo/semantics/publishedVersion"},{"id":"pmh:oai:www.ucm.es:37786","is_oa":false,"landing_page_url":"http://eprints.ucm.es/37786/1/Montero266.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306400298","display_name":"Library Open Repository (Universidad Complutense Madrid)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I121748325","host_organization_name":"Universidad Complutense de Madrid","host_organization_lineage":["https://openalex.org/I121748325"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:oai:academica-e.unavarra.es:2454/32795","is_oa":true,"landing_page_url":"https://hdl.handle.net/2454/32795","pdf_url":"https://academica-e.unavarra.es/bitstreams/e0b606e6-f38b-4e94-bb16-52a4ed1b2513/download","source":{"id":"https://openalex.org/S4306402560","display_name":"Academica-e (Universidad P\u00fablica de Navarra)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I175051016","host_organization_name":"Universidad P\u00fablica de Navarra (UPNA)","host_organization_lineage":["https://openalex.org/I175051016"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/acceptedVersion"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G237172224","display_name":null,"funder_award_id":"-0 and","funder_id":"https://openalex.org/F4320322025","funder_display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico"},{"id":"https://openalex.org/G3214843933","display_name":null,"funder_award_id":"307681/2012-2","funder_id":"https://openalex.org/F4320322025","funder_display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico"},{"id":"https://openalex.org/G817714934","display_name":null,"funder_award_id":"480832/2011-0","funder_id":"https://openalex.org/F4320322025","funder_display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico"}],"funders":[{"id":"https://openalex.org/F4320322025","display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","ror":"https://ror.org/03swz6y49"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2282429601.pdf","grobid_xml":"https://content.openalex.org/works/W2282429601.grobid-xml"},"referenced_works_count":172,"referenced_works":["https://openalex.org/W26553146","https://openalex.org/W40013532","https://openalex.org/W50792524","https://openalex.org/W120170597","https://openalex.org/W146215483","https://openalex.org/W184846395","https://openalex.org/W564030374","https://openalex.org/W647481897","https://openalex.org/W1489100706","https://openalex.org/W1511922998","https://openalex.org/W1512983462","https://openalex.org/W1556724924","https://openalex.org/W1557923305","https://openalex.org/W1577818368","https://openalex.org/W1593595443","https://openalex.org/W1606108510","https://openalex.org/W1731455596","https://openalex.org/W1756786712","https://openalex.org/W1831769389","https://openalex.org/W1898259180","https://openalex.org/W1946053744","https://openalex.org/W1966162270","https://openalex.org/W1966454837","https://openalex.org/W1966808269","https://openalex.org/W1967631467","https://openalex.org/W1967818160","https://openalex.org/W1968026678","https://openalex.org/W1969692967","https://openalex.org/W1970986794","https://openalex.org/W1975503090","https://openalex.org/W1976755248","https://openalex.org/W1977854243","https://openalex.org/W1978062397","https://openalex.org/W1978334434","https://openalex.org/W1978352585","https://openalex.org/W1978931285","https://openalex.org/W1980564456","https://openalex.org/W1981107087","https://openalex.org/W1982800052","https://openalex.org/W1984606274","https://openalex.org/W1985317768","https://openalex.org/W1986900020","https://openalex.org/W1988053196","https://openalex.org/W1988566685","https://openalex.org/W1989995659","https://openalex.org/W1990824483","https://openalex.org/W1991358523","https://openalex.org/W1991497142","https://openalex.org/W1993810822","https://openalex.org/W1994940876","https://openalex.org/W1996486820","https://openalex.org/W1998676999","https://openalex.org/W1999293705","https://openalex.org/W2001880207","https://openalex.org/W2007538282","https://openalex.org/W2013932252","https://openalex.org/W2014356938","https://openalex.org/W2017695773","https://openalex.org/W2018326882","https://openalex.org/W2020221628","https://openalex.org/W2021229104","https://openalex.org/W2023074964","https://openalex.org/W2025128229","https://openalex.org/W2026244788","https://openalex.org/W2026829949","https://openalex.org/W2027654459","https://openalex.org/W2029074979","https://openalex.org/W2029377923","https://openalex.org/W2030330616","https://openalex.org/W2031190906","https://openalex.org/W2032777428","https://openalex.org/W2032778603","https://openalex.org/W2033381173","https://openalex.org/W2033667126","https://openalex.org/W2037940305","https://openalex.org/W2040029252","https://openalex.org/W2041210202","https://openalex.org/W2041455711","https://openalex.org/W2043897597","https://openalex.org/W2044308520","https://openalex.org/W2047922858","https://openalex.org/W2051531886","https://openalex.org/W2053211464","https://openalex.org/W2054416947","https://openalex.org/W2056321297","https://openalex.org/W2057266079","https://openalex.org/W2057794837","https://openalex.org/W2059975461","https://openalex.org/W2065471531","https://openalex.org/W2068069653","https://openalex.org/W2068402605","https://openalex.org/W2070564912","https://openalex.org/W2074145995","https://openalex.org/W2074537354","https://openalex.org/W2075537232","https://openalex.org/W2075724823","https://openalex.org/W2076808107","https://openalex.org/W2077170456","https://openalex.org/W2078443809","https://openalex.org/W2078786536","https://openalex.org/W2079457935","https://openalex.org/W2080407469","https://openalex.org/W2082647352","https://openalex.org/W2082736027","https://openalex.org/W2083085512","https://openalex.org/W2085248504","https://openalex.org/W2090542323","https://openalex.org/W2091130862","https://openalex.org/W2091617649","https://openalex.org/W2092639706","https://openalex.org/W2094404935","https://openalex.org/W2094760805","https://openalex.org/W2097403045","https://openalex.org/W2097423137","https://openalex.org/W2105234323","https://openalex.org/W2105429025","https://openalex.org/W2111361149","https://openalex.org/W2111466135","https://openalex.org/W2113082153","https://openalex.org/W2114832876","https://openalex.org/W2115412314","https://openalex.org/W2116045940","https://openalex.org/W2120131014","https://openalex.org/W2120165455","https://openalex.org/W2125631815","https://openalex.org/W2126460072","https://openalex.org/W2127067818","https://openalex.org/W2127196646","https://openalex.org/W2129661341","https://openalex.org/W2130030409","https://openalex.org/W2131390763","https://openalex.org/W2132685025","https://openalex.org/W2132885717","https://openalex.org/W2136305190","https://openalex.org/W2140460921","https://openalex.org/W2140599494","https://openalex.org/W2141178894","https://openalex.org/W2144832785","https://openalex.org/W2148925928","https://openalex.org/W2150810250","https://openalex.org/W2152743610","https://openalex.org/W2153406165","https://openalex.org/W2154437129","https://openalex.org/W2155976821","https://openalex.org/W2157041604","https://openalex.org/W2161925873","https://openalex.org/W2163183457","https://openalex.org/W2164400088","https://openalex.org/W2165310837","https://openalex.org/W2169868723","https://openalex.org/W2170779974","https://openalex.org/W2178918608","https://openalex.org/W2263787491","https://openalex.org/W2293737317","https://openalex.org/W2330022088","https://openalex.org/W2475444389","https://openalex.org/W2481052802","https://openalex.org/W2912565176","https://openalex.org/W3147210364","https://openalex.org/W4205471131","https://openalex.org/W4206636130","https://openalex.org/W4211007335","https://openalex.org/W4234672050","https://openalex.org/W4239165868","https://openalex.org/W4245152641","https://openalex.org/W4255833381","https://openalex.org/W4289254296","https://openalex.org/W4292078529","https://openalex.org/W6634609459","https://openalex.org/W6640554483","https://openalex.org/W6645451138","https://openalex.org/W6693091319"],"related_works":["https://openalex.org/W3188962172","https://openalex.org/W2772917594","https://openalex.org/W4312825515","https://openalex.org/W4306742369","https://openalex.org/W4303457083","https://openalex.org/W2131146434","https://openalex.org/W2951359407","https://openalex.org/W4376623224","https://openalex.org/W4387849428","https://openalex.org/W2965396565"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3],"review":[4],"the":[5,11,24,29,37],"definition":[6],"and":[7,33],"basic":[8],"properties":[9],"of":[10,14,36],"different":[12],"types":[13],"fuzzy":[15],"sets":[16],"that":[17],"have":[18,42],"appeared":[19],"up":[20],"to":[21],"now":[22],"in":[23,39],"literature.":[25],"We":[26],"also":[27],"analyze":[28],"relationships":[30],"between":[31],"them":[32],"enumerate":[34],"some":[35],"applications":[38],"which":[40],"they":[41],"been":[43],"used.":[44]},"counts_by_year":[{"year":2026,"cited_by_count":5},{"year":2025,"cited_by_count":23},{"year":2024,"cited_by_count":39},{"year":2023,"cited_by_count":39},{"year":2022,"cited_by_count":46},{"year":2021,"cited_by_count":49},{"year":2020,"cited_by_count":50},{"year":2019,"cited_by_count":60},{"year":2018,"cited_by_count":55},{"year":2017,"cited_by_count":55},{"year":2016,"cited_by_count":27},{"year":2015,"cited_by_count":11}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2016-06-24T00:00:00"}