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Different representations of space are not in general equivalent. This point is clearly illustrated in research on the generation of sketches from route descriptions given in natural language: many linguistic expressions determine only partially a spatial situation. This article explores the role played by a pivot representation based on the Voronoi(More)
In the GRAAD project we aim at developping a knowledge-based system which manipulates spatial and temporal knowledge while simulating the kind of behaviour that people adopt when describing a route. A route description is essentially a narrative text in which sentences are prescriptions given by the speaker to an addressee: they describe a succession of(More)
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