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Generalizing database relational algebra for the treatment of incomplete or uncertain information and vague queries

Information Sciences · 1984 · Vol. 34(2) · pp. 115–143
Henri Prade
Data Management and AlgorithmsAdvanced Database Systems and QueriesLogic, Reasoning, and KnowledgeRelational algebraCartesian productRelational calculusMathematicsFuzzy logicAlgebra over a fieldIntersection (aeronautics)Conjunctive queryRelational databaseCodd's theorem
Citations
554
FWCI
4.48
field-weighted impact
References
18
Percentile
94%
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Citations per year
References
Fuzzy sets as a basis for a theory of possibility
Fuzzy Sets and Systems · 1999 · 7,284 citations
A fuzzy representation of data for relational databases
Fuzzy Sets and Systems · 1982 · 611 citations
Ranking fuzzy numbers in the setting of possibility theory
Information Sciences · 1983 · 933 citations
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