A fuzzy valid-time model for relational databases within the hibernate framework

Authors:
Jose Enrique Pons;Olga Pons Capote;Ignacio Blanco Medina
Affiliations:
Department of Computer Science and Artificial Intelligence, Universidad de Granada, Escuela Técnica Superior de Ingeniería Informática, Granada, Spain;Department of Computer Science and Artificial Intelligence, Universidad de Granada, Escuela Técnica Superior de Ingeniería Informática, Granada, Spain;Department of Computer Science and Artificial Intelligence, Universidad de Granada, Escuela Técnica Superior de Ingeniería Informática, Granada, Spain
Venue:
FQAS'11 Proceedings of the 9th international conference on Flexible Query Answering Systems
Year:
2011

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Abstract

Time in databases has been studied for a long time. Valid time databases capture when the objects are true in the reality. The proposed model allows both representing and querying time in a fuzzy way. The representation and the underlying domain are defined as well as some fuzzy temporal operators. The implementation of the model is developed within the Hibernate framework. The Hibernate framework acts as an abstraction for the running database. Therefore, any relational database supported by the framework can now represent fuzzy valid time in its schema.