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Restructuring for Large Data Bases: Three Levels of Abstraction.
Shamkant B. Navathe
James P. Fry
Published in:
ACM Trans. Database Syst. (1976)
Keyphrases
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levels of abstraction
databases
abstraction levels
data base management
database systems
knowledge discovery
data from multiple sources
objective function
cooperative
expert systems
active learning
multiple sources