Show simple item record

dc.contributor.authorMedina Rodríguez, Juan Miguel 
dc.contributor.authorPons Capote, Olga 
dc.contributor.authorVila Miranda, María Amparo 
dc.date.accessioned2019-05-21T11:10:04Z
dc.date.available2019-05-21T11:10:04Z
dc.date.issued2017-07-17
dc.identifier.citationMedina, J. M., Pons, O. and Vila, M. A. (2018), Relational Representation of Uncertain and Imprecise Time Assessments: An Application to Artworks Dating. Int. J. Intell. Syst., 33: 1109-1130.es_ES
dc.identifier.urihttp://hdl.handle.net/10481/55780
dc.description.abstractImprecision and uncertainty appear together in many situations of real life and thereforesoft computing techniques must be studied to tackle this problem. Imprecise and uncertainvalues are usually expressed by means of linguistic terms, specially when they have beenprovidedbya human being. This is also the case of temporal information where, inaddition to handling time constraints, we may also have both uncertainty and imprecisionin the description, like in the sentence”It is very possible that Giotto’s Crucifix was paintedby 1289”. To manage both uncertainty (very possible) and imprecision (by 1289) in aseparate way would lead to a quite complicated computation and a lack of comprehensionby the users of the system. Because of these reasons, it is very desirable that bothsources of imperfection of time values are combined into a single value which appropriatelydescribes the intended information. In this work, we extend our previous research on thistopic and we study how to adapt it to relational systems in order to be useful. The finalgoal is obtaining normalized fuzzy values that provide an equivalent information about thedescribed temporal fact than the original ones, for making it possible to store and managethem in a fuzzy relational database. On the other hand, there will be some situationswhere more than one expert opinion about a time period must be taken into account andwe need to find a representative value of them all in order to be stored and managed. Forthe sake of simplicity, comprehensibility and the efficiency in computation (when usingtrapezoidal representation), the fuzzy average is used to find such a representative value.es_ES
dc.language.isoenges_ES
dc.publisherInternational Journal of Intelligent Systemses_ES
dc.relationThis work has been partially supported by the Spanish Ministry of Econ-omy and Competitiveness and the European Regional Development Fund (FEDER) under projectTIN2014-58227-P.es_ES
dc.subjectFuzzy Uncertaintyes_ES
dc.subjectFuzzy Relational Databasees_ES
dc.subjectFuzzy Time Intervales_ES
dc.subjectFuzzyTemporal Databasees_ES
dc.titleRelational Representation of Uncertain and Imprecise Time Assess-ments: An Application to Artworks Dating.es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/embargoedAccesses_ES
dc.identifier.doidoi:10.1002/int.21914


Files in this item

[PDF]

This item appears in the following Collection(s)

Show simple item record