Specifying Map Requirements for Automated Generalization of Topographic Data

Abstract

This study aims at acquiring knowledge on map requirements for automated generalization. First, interactively generalized map series were visually analysed together with the specifications that cartographers use to generalize the maps. Second, these map specifications were experimentally implemented on real data in automated processes and compared to an interactively generalized map to see if the results are according to the specifications; to see if the specifications are complete and well-formalized; and to identify situations that were not addressed in the specifications. If required, the specifications were enriched and re-implemented also adding extra information from other sources. The experiments revealed the 'deep' knowledge which cartographers add to the interactive process. Based on this revealed knowledge, recommendations are formulated to specify map requirements for automated generalization of topographic data.

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