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IBM Journal of Research and Development  
Volume 20, Number 4, Page 336 (1976)
Nontopical Issue
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Conceptual Graphs for a Data Base Interface

by J. F. Sowa
A data base system that supports natural language queries is not really natural if it requires the user to know how the data are represented. This paper defines a formalism, called conceptual graphs, that can describe data according to the user's view and access data according to the system's view. In addition, the graphs can represent functional dependencies in the data base and support inferences and computations that are not explicit in the initial query.
Related Subjects: Data, structures and accessing; Databases; Graph theory; Natural language processing; Programming, programs, and programming languages