VISUAL REPRESENTATION OF NATURAL-LANGUAGE SCENE DESCRIPTIONS

We are mainly interested in the development of CAD systems for interio r design, An effective use of such systems relies to a large extent on the characteristics of their user interface, This paper describes NAL IG, a system able to ''understand'' and ''reason about'' high level de scriptions of spatial scenes, The user interacts with the system by us ing a natural language interface which, though very simple, is express ive enough to allow the description of complex configurations of objec ts, NALIG replies by drawing on the screen an image mirroring its own ''understanding'' of the scene described. The comprehension process ha s required the integration of different AI-techniques (e,g., natural l anguage understanding, spatial reasoning, default and common sense rea soning).