| The dataset contains a topographic description of rivers, roads, railways as well as woods/forests and buildings (one fact per object). Each object is decribed by its geometry in 2-dimensional space, some additional characteristics are used when neccessary, e.g., for the roads and railways. The example set is based on real-world topographic data, which have been modified to keep their confidentiality. The applied modification maintains the essential geographical features of the original data with clear geometrical interpretation (e.g. line intersections, the size of the considered area etc.).
The provided dataset is intended for induction of the rules for identification of concepts like bridge, forest in contrast to wood, railway station in contrast to a house nearby the railway etc
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