Specifying map requirements for automated generalization of topographic data

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.