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On the Use of an Extended Relational Model to Handle Changing Incomplete Information.
Arthur M. Keller
Marianne Winslett Wilkins
Published in:
IEEE Trans. Software Eng. (1985)
Keyphrases
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incomplete information
relational model
relational algebra
partial information
query answering
autonomous agents
missing information
relational calculus
nested relations
databases
first order logic
relational databases
complex objects
functional dependencies
data model
relational data model
high level