Combining Topological and Cardinal Directional Relation Information in Qualitative Spatial Reasoning

Combining different knowledge representation languages is one of the main topics in Qualitative Spatial Reasoning (QSR). In this paper, we combine well known RCC8 calculus (RCC8) and cardinal direction calculus (CDC) based on regions and give the interaction tables for the two calculi. The interaction tables can be used as a tool in solving constraint satisfaction problems (CSP) and consistency checking procedure of QSR for combined spatial knowledge.