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This paper introduces the interval version of the Geometric Machine (GM) model, to model the semantics of algorithms of interval mathematics. Based on coherence spaces, the set of values storable in the GM memory is represented by the bi-structured coherence space of rational intervals, a constructive computational representation of the set of real intervals. Over the inductive ordered structure called...
This work introduces a tessellation-based model for the declivity analysis of geographic regions. The analysis of the relief declivity, which is embedded in the rules of the model, categorizes each tessellation cell, with respect to the whole considered region, according to the (positive, negative, null) sign of the declivity of the cell. Such information is represented in the states assumed by the...
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