Metadata Hierarchy in Integrated Geoscientific Database for Regional Mineral Prospecting  

作　　者：MA Xiaogang WANG Xinqing WU Chonglong JU Feng 

机构地区：[1]Institute of Land and Resources Information System, Faculty of Earch Resources, China University of Geosciences, 388 Lumo Road,Wuhan 430074, China, [2]不详

出　　处：《Geo-Spatial Information Science》2007年第3期223-227,共5页地球空间信息科学学报（英文）

基　　金：Funded by the National 863 Program of China (No.2002AA130406);the Key Project of China Geological Survey (No.200218310077).

摘　　要：One of the core developments in geomathematics in now days is the use of digital data processing in mineral prospecting and assessment. The information discovery is based on multidisciplinary geoscientific data and an integrated management approach is crucial. The lack of a standard description hinders interoperations in database search and discovery. Metadata hierarchy aims to provide a standard view of the geoscientific data, and facilitate data description and discovery. In the research of integrated geoscientific database, the metadata hierarchy used a standardized description for each collection in the content structure and realized in semantic structure. It recorded both dataset identification and inner structures and relationships of objects, thus differed from many other applications. There were four tiers in the content structure and three levels in the semantic structure. With its help, database users could determine how applicable a dataset is to a project, and improve their queries to the database. Effectiveness of data accessing is significantly enhanced through the rich, consistent metadata.在在现在的 geomathematics 的核心开发之一天是在矿物质勘探和评价处理的数字数据的使用。信息发现基于多学科的 geoscientific 数据，一条综合管理途径是关键的。标准描述的缺乏在数据库搜索和发现妨碍互操作。元数据层次目的将提供 geoscientific 数据的一个标准看法，并且便于数据描述和发现。在综合 geoscientific 数据库的研究，元数据层次在内容结构为每个集合使用了标准化描述并且在语义结构认识到。它记录了对象的数据集鉴定和内部结构和关系，因此不同于许多另外的应用程序。在语义结构在内容结构和三个层次有四级。与它的帮助，数据库用户能决定数据集怎么适用到一个工程，并且改进他们的询问到数据库。存取的数据的有效性显著地通过富有的、一致元数据被提高。

关 键 词：metadata hierarchy integrated geoscientific database content structure semantic structure 

分 类 号：P208[天文地球—地图制图学与地理信息工程]