Maintaining knowledge about temporal intervals
Communications of the ACM
Reasoning about Qualitative Spatial Relationships
Journal of Automated Reasoning
Using Orientation Information for Qualitative Spatial Reasoning
Proceedings of the International Conference GIS - From Space to Territory: Theories and Methods of Spatio-Temporal Reasoning on Theories and Methods of Spatio-Temporal Reasoning in Geographic Space
Integrated spatial reasoning in geographic information systems: combining topology and direction
Integrated spatial reasoning in geographic information systems: combining topology and direction
Composing cardinal direction relations
Artificial Intelligence
Combining topological and directional information for spatial reasoning
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
Consistency checking of basic cardinal constraints over connected regions
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
On the consistency of cardinal direction constraints
Artificial Intelligence
Qualitative spatial reasoning with topological information
Qualitative spatial reasoning with topological information
Combining topological and directional information: first results
KSEM'06 Proceedings of the First international conference on Knowledge Science, Engineering and Management
Qualitative Spatial Representation and Reasoning: An Overview
Fundamenta Informaticae - Qualitative Spatial Reasoning
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It is inadequate considering only one aspect of spatial information in practical problems, where several aspects are usually involved together. Reasoning with multi-aspect spatial information has become the focus of qualitative spatial reasoning. Most previous works of combing topological and directional information center on the combination with MBR based direction model or single-tile directions. The directional description is too approximate to do precise reasoning. Different from above, cardinal direction relations and RCC5 are introduced to represent directional and topological information. We investigate the mutual dependencies between basic relations of two formalisms, discuss the heterogeneous composition and give the detail composing rules. Then point out that only checking the consistency of topological and directional constraints before and after entailing by the constraints of each other respectively will result mistakes. Based on this, an improved constraint propagation algorithm is presented to enforce path consistency. And the computation complexities of checking the consistency of the hybrid constraints over various subsets of RCC5 and cardinal direction relations are analyzed at the end.