基于图形的GIS数据表示

Research on representation for graph-based GIS data

探讨了GIS空间数据的知识表示结构,使用四元组和九元组模型来进行各类型的空间属性关系描述.在此基础上,提出一种空间数据、非空间数据及空间关系(拓扑、距离、方向关系)的统一化图形表示模型.图形模型丰富了现有的数据挖掘处理技术,简化了数据收集与数据挖掘的过程,同时强化了空间特征固有的内在联系,提供了更丰富的数据分析能力.

This paper presents a knowledge representation for GIS spatial data, describes all kinds of spatial relations between spatial objects using 4-tuples models and 9-tuples models. Proposes a uniform graph-base model for representation to spatial and non-spatial data and also including spatial relations （topological, orientation and distance）. The model makes data mining technology plentiful, simplifies process of data acquiring and data mining, it also strengthens the relations between spatial objects and ability of data analysis.