Graph based database system for heterogenous data that allows ranked search and browsing.
针对异构数据的基于数据库系统的图表，他允许分级搜索和流览。
An approach to approximate querying of general graph structured semistructured data is proposed based on a relational database system.
提出一种利用关系数据库系统在一般图结构的半结构化数据上进行近似查询的途径。
Based on the wholly design of the debris flow hazard database, this thesis begins with setting up the debris flow hazard graph database with MAPGIS tool.
本文在对泥石流灾害数据库进行总体设计的基础上，经过多方面分析最终选用优秀的国产地理信息系统软件MAPGIS为基础平台。
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