Fuzzy functional dependencies and lossless join decomposition of fuzzy relational database systems
ACM Transactions on Database Systems (TODS)
Generalization of strategies for fuzzy query translation in classical relational databases
Information and Software Technology
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This paper treats the problem of fuzzy query translation using the concept of database skeleton. An imprecise, or fuzzy, query is represented by a query graph, which can be analyzed for translatability with respect to a given database skeleton. The fuzzy query translation problem is formulated as a problem of converting a partially specified query graph into a completely specified query graph. This graph is then translated into a sequence of data manipulation commands, such as commands in relational algebra. Approaches to optimal fuzzy query translation are also described.