{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T22:34:01Z","timestamp":1767652441137},"reference-count":20,"publisher":"Elsevier BV","issue":"1-2","license":[{"start":{"date-parts":[[1994,1,1]],"date-time":"1994-01-01T00:00:00Z","timestamp":757382400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Information Sciences"],"published-print":{"date-parts":[[1994,1]]},"DOI":"10.1016\/0020-0255(94)90069-8","type":"journal-article","created":{"date-parts":[[2003,6,30]],"date-time":"2003-06-30T17:28:37Z","timestamp":1056994117000},"page":"87-109","source":"Crossref","is-referenced-by-count":130,"title":["Gefred: A generalized model of Fuzzy Relational Databases"],"prefix":"10.1016","volume":"76","author":[{"given":"Juan Miguel","family":"Medina","sequence":"first","affiliation":[]},{"given":"Olga","family":"Pons","sequence":"additional","affiliation":[]},{"given":"Maria Amparo","family":"Vila","sequence":"additional","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/0020-0255(94)90069-8_BIB1","article-title":"Fuzzy relational databases","volume":"Vol. II","author":"Anvari","year":"1987"},{"key":"10.1016\/0020-0255(94)90069-8_BIB2","doi-asserted-by":"crossref","first-page":"333","DOI":"10.1016\/0165-0114(88)90039-5","article-title":"Fuzzy querying with SQL: Extensions and implementation aspect","volume":"28","author":"Bosc","year":"1988","journal-title":"Fuzzy Sets and Systems"},{"key":"10.1016\/0020-0255(94)90069-8_BIB3","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1016\/0165-0114(82)90052-5","article-title":"A fuzzy representation of data for relational databases","volume":"7","author":"Buckles","year":"1982","journal-title":"Fuzzy Sets and Systems"},{"key":"10.1016\/0020-0255(94)90069-8_BIB4","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/0020-0255(84)90021-5","article-title":"Extending the fuzzy database with fuzzy numbers","volume":"34","author":"Buckles","year":"1984","journal-title":"Information Sciences"},{"key":"10.1016\/0020-0255(94)90069-8_BIB5","doi-asserted-by":"crossref","first-page":"327","DOI":"10.1016\/0165-0114(89)90044-4","article-title":"A domain calculus for fuzzy relational databases","volume":"29","author":"Buckles","year":"1989","journal-title":"Fuzzy Sets and Systems"},{"issue":"6","key":"10.1016\/0020-0255(94)90069-8_BIB6","doi-asserted-by":"crossref","first-page":"377","DOI":"10.1145\/362384.362685","article-title":"A relational model of data for large shared data banks","volume":"13","author":"Codd","year":"1970","journal-title":"Commun. ACM"},{"issue":"3","key":"10.1016\/0020-0255(94)90069-8_BIB7","doi-asserted-by":"crossref","DOI":"10.1109\/TSMC.1986.4308982","article-title":"Database queries with fuzzy linguistic quantifiers","volume":"SMC-16","author":"Kacprzyk","year":"1986","journal-title":"IEEE Transactions on Syst., Man and Cybern."},{"key":"10.1016\/0020-0255(94)90069-8_BIB8","series-title":"1er Congreso Espan\u0304ol sobre Tecnolog\u00edas y L\u00f3gica Fuzzy","article-title":"Un modelo de bases de datos difusa aplicado a informati\u00f3n m\u00e9dica","author":"Medina","year":"1991"},{"key":"10.1016\/0020-0255(94)90069-8_BIB9","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1016\/0020-0255(84)90020-3","article-title":"Generalizing database relational algebra for the treatment of incomplete\/uncertain information and vague queries","volume":"34","author":"Prade","year":"1984","journal-title":"Information Sciences"},{"key":"10.1016\/0020-0255(94)90069-8_BIB10","article-title":"Representation of soft constraints and fuzzy attribute values by means of possibility distributions in databases","volume":"Vol. II","author":"Prade","year":"1987"},{"key":"10.1016\/0020-0255(94)90069-8_BIB11","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/0165-0114(87)90149-7","article-title":"The study of joins in fuzzy relational databases","volume":"21","author":"Raju","year":"1987","journal-title":"Fuzzy Sets and Systems"},{"key":"10.1016\/0020-0255(94)90069-8_BIB12","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1016\/0888-613X(89)90019-4","article-title":"On nearness measures in fuzzy relational data models","volume":"3","author":"Rundensteiner","year":"1989","journal-title":"International Journal of Approximate Reasoning"},{"key":"10.1016\/0020-0255(94)90069-8_BIB13","doi-asserted-by":"crossref","first-page":"285","DOI":"10.1016\/0165-0114(89)90201-7","article-title":"Proximity relations in the fuzzy relational database model","volume":"31","author":"Shenoi","year":"1989","journal-title":"Fuzzy Sets and System"},{"key":"10.1016\/0020-0255(94)90069-8_BIB14","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1016\/0020-0255(90)90034-8","article-title":"An extended version of the fuzzy relational database model","volume":"52","author":"Shenoi","year":"1990","journal-title":"Information Sciences"},{"key":"10.1016\/0020-0255(94)90069-8_BIB15","series-title":"Fuzzy Information and Decision Processes","article-title":"Freedom-O: A fuzzy database system","author":"Umano","year":"1982"},{"key":"10.1016\/0020-0255(94)90069-8_BIB16","article-title":"A logic approach to fuzzy relational databases","author":"Vila","year":"1992","journal-title":"IPMU'92"},{"key":"10.1016\/0020-0255(94)90069-8_BIB17","series-title":"Las bases de datos relationales y su tratamiento l\u00f3gico","author":"Vila","year":"1992"},{"key":"10.1016\/0020-0255(94)90069-8_BIB18","doi-asserted-by":"crossref","first-page":"177","DOI":"10.1016\/S0020-0255(71)80005-1","article-title":"Similarity relations and fuzzy orderings","volume":"3","author":"Zadeh","year":"1971","journal-title":"Information Sciences"},{"key":"10.1016\/0020-0255(94)90069-8_BIB19","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1016\/0165-0114(78)90029-5","article-title":"Fuzzy sets as a basis for a theory of possibility","volume":"1","author":"Zadeh","year":"1978","journal-title":"Fuzzy Sets and Systems"},{"key":"10.1016\/0020-0255(94)90069-8_BIB20","series-title":"Fuzzy Relational Data Bases\u2014A Key to Expert Systems","author":"Zemankova","year":"1984"}],"container-title":["Information Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0020025594900698?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0020025594900698?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2020,3,24]],"date-time":"2020-03-24T15:06:50Z","timestamp":1585062410000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0020025594900698"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,1]]},"references-count":20,"journal-issue":{"issue":"1-2","published-print":{"date-parts":[[1994,1]]}},"alternative-id":["0020025594900698"],"URL":"https:\/\/doi.org\/10.1016\/0020-0255(94)90069-8","relation":{},"ISSN":["0020-0255"],"issn-type":[{"value":"0020-0255","type":"print"}],"subject":[],"published":{"date-parts":[[1994,1]]}}}