A domain calculus for fuzzy relational databases

DOI10.1016/0165-0114(89)90044-4zbMath0667.68114OpenAlexW2172000410MaRDI QIDQ1117707

Frederick E. Petry, Billy P. Buckles, Harvinder S. Sachar

Publication date: 1989

Published in: Fuzzy Sets and Systems (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0165-0114(89)90044-4

zbMATH Keywords

query languagerelational algebrafuzzy relational databasesdomain calculusrelational completeness

Mathematics Subject Classification ID

Specification and verification (program logics, model checking, etc.) (68Q60) Information storage and retrieval of data (68P20)

Related Items (5)

Fuzzy functional dependencies and independencies in extended fuzzy relational database models ⋮ Towards the implementation of a generalized fuzzy relational database model ⋮ Network data models for representation of uncertainty ⋮ An extension of classical functional dependency: Dynamic fuzzy functional dependency ⋮ Unnamed Item

Cites Work

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• Extending the fuzzy database with fuzzy numbers
• Lipski's approach to incomplete information data bases restated and generalized in the setting of Zadeh's possibility theory
• Generalizing database relational algebra for the treatment of incomplete or uncertain information and vague queries
• A fuzzy representation of data for relational databases
• Null values in a relational data base
• Similarity relations and fuzzy orderings
• PRUF—a meaning representation language for natural languages
• A relational model of data for large shared data banks

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