Time-Dependent Generation of Minimal Sets of Spatial Descriptions
Talking about a location within a geometrically represented environment implies the translation of coordinates into suitable natural language expressions. Therefore, a reference semantics anchored in the given geometry has to be developed in order to be able to describe spatial relations between objects. Answering the question “Where is object X?” will lead to a large set of spatial propositions like “X is near Y,” “X is to the right of Z,” and so forth. Aiming for a description of the specified location that is both easily understood and highly informative for a human being, the elements of this set must be analyzed with respect to the degrees of applicability, compatibility, uniqueness, and facility to be memorized. Furthermore, the actual context as well as presumptions about the user’s knowledge must be taken into account.