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carsim-a system to visualize written road accident reports as animated 3d scenes(1)-英文学习资料.PDF

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Carsim: A System to Visualize Written Road Accident Reports as Animated 3D Scenes Richard Johansson David Williams Anders Berglund Pierre Nugues LUCAS, Department of Computer Science, Lund University Box 118 SE-221 00 Lund, Sweden richard, pierre@cs.lth.se, d98dw, d98ab@efd.lth.se Abstract 2 Related Work The conversion of natural language texts into graph- This paper describes a system to create animated ics has been investigated in a few projects. NALIG 3D scenes of car accidents from reports written in (Adorni et al., 1984; Manzo et al., 1986) is an early Swedish. The system has been developed using example of them that was aimed at recreating static news reports of varying size and complexity. The 2D scenes. One of its major goals was to study rela- text-to-scene conversion process consists of two tionships between space and prepositions. NALIG stages. An information extraction module creates considered simple phrases in Italian of the type sub- a structured representation of the accident and a vi- ject, preposition, object that in spite of their simplic- sual simulator generates and animates the scene.