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- research-articleOctober 1994
A Structured Approach for Cooperative Query Answering
IEEE Transactions on Knowledge and Data Engineering (IEEECS_TKDE), Volume 6, Issue 5Pages 738–749https://doi.org/10.1109/69.317704This paper proposes the use of a type abstraction hierarchy as a framework for deriving cooperative query answers. The type abstraction hierarchy integrates the abstraction view with the subsumption (is-a) and composition (part-of) views of a type ...