First, DLO matrix is defined based on the 4 intersection method of spatial reasoning.

首先基于空间推理中4交模型的方法,定义了DLO矩阵.

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Consistency checking of cardinal direction constraints is one of the essential issues in qualitative spatial reasoning.

基本方向约束的一致性判定是定性空间推理中的基本问题之一.

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