Abstract
We present the model of a Geometric Agent that can navigate on routes in a virtual planar environment according to natural-language instructions presented in advance. The Geometric Agent provides a new method to study the interaction between the spatial information given in route instructions and the spatial information gained from perception. Perception and action of the Geometric Agent are simulated. Therefore, the influence of differences in both linguistic and perceptual skills can be subject to further studies employing the Geometric Agent. The goal of this investigation is to build a formal framework that can demonstrate the performance of specific theories of the interpretation of natural-language in the presence of sensing. In this article, we describe the main sub-tasks of instructed navigation and the internal representations the Geometric Agent builds up in order to carry them out.
The research reported in this article was supported by the Deutsche Forschungsgemeinchaft (DFG) and carried out in the context of the project “Axiomatik räumlicher Konzepte” (HA 1237-7) that is imbedded in the priority program on “Spatial Cognition”. We thank the participants of the “route instruction” project (acadamic year 2001/02) for support in the collection of verbal data and the analysis of navigation tasks, and two anonymous reviewers for helpful comments and suggestions.
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Tschander, L.B., Schmidtke, H.R., Eschenbach, C., Habel, C., Kulik, L. (2003). A Geometric Agent Following Route Instructions. In: Freksa, C., Brauer, W., Habel, C., Wender, K.F. (eds) Spatial Cognition III. Spatial Cognition 2002. Lecture Notes in Computer Science, vol 2685. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45004-1_6
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