Research on Spatial Query by Sketch
Spatial database contains a great deal of topological and directional semantics. But traditional spatial data query methods didnt make good use of these high level semantics. To overcome this conceptual gap, this paper proposes a spatial data query method based on sketch using 9-intersection model and DeepDirection-Relation Matrix. This method integrates direction relations and topological relations and can handle all data types in geographical databases. This paper outlines an algorithm based on the solutions of Binary CSP and spatial neighborhood relations. A prototype has been developed to experiment the method this paper proposed.
Spatial Spatial Query Direction Relations Topological Relations Spatial Reasoning
SHEN Shi-qun LIU Da-you ZHU Li-na ZANG Qi-gui
College of Computer Science and Technology Jilin University Changchun,China Shenyang Institute of Artillery Shenyang,China
国际会议
长春
英文
398-401
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）