In this paper, we review a new definition of fuzzy functional dependency based on conditional probability and its application to approximate data reduction re-lated to operation of projection in classical relational database in order to construct fuzzy integrity con-straints [l]. We introduce the concept of partial fuzzy functional dependency which expresses the fact that a given attribute X does not determine Y completely, but in the partial area of X, it might determine Y. Finally, we discuss another application of fuzzy functional de-pendency an constructing fuzzy query relation for data querying and approximate join of two or more fuzzy query relations in the framework of extended query sys-tem. 1
To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.