Spatial relations between indeterminate regions

Spatial relations between indeterminate regions

Uncertain Relations between Indeterminate Temporal Intervals

Time is important in modeling dynamic aspects of the world, and particularly in the temporal databases field. Many research articles about temporal databases assume that complete and accurate temporal information is available. However, in many real applications temporal information is imperfect and we need to find some way of handling it. The two main commonly used temporal ontological primitiv...

Topological Relations between Convex Regions

Topological relations between spatial objects are the most important kind of qualitative spatial information. Dozens of relation models have been proposed in the past two decades. These models usually make a small number of distinctions and therefore can only cope with spatial information at a fixed granularity of spatial knowledge. In this paper, we propose a topological relation model in whic...

Topological Relations between Discrete Regions

Topological reasoning is important for speeding up spatial queries, e.g. in GIS or in AI (robotics). While topological relations between spatial objects in the vector model (I R 2) are investigated thoroughly, we run into inconsistencies in the raster model (Z Z 2). But instead of reducing our requirements in case of reasoning in raster images we change from simple raster to a cellular decompos...

Modeling Spatial Relations Between Lines and Regions: Combining Formal Mathematical Models and Human Subjects Testing

This paper describes the results of a series of human-subjects experiments to test how people think about spatial relations between lines and regions. The experiments are centered on a formal model of topological spatial relations, called the 9-intersection. For unbranched lines and simplyconnected regions, this model identifies 19 different spatial relations. Subjects were presented with two o...