Gstruct:a system for extracting schemas from GML documents
Geography Markup Language (GML) becomes the de facto standard for geographic information representation on the internet.GML schema provides a way to define the structure,content,and semantic of GML documents.It contains useful structural information of GML documents and plays an important role in storing,querying and analyzing GML data.However,GML schema is not mandatory,and it is common that a GML document contains no schema.In this paper,we present Gstruct,a tool for GML schema extraction.Gstruct finds the features in the input GML documents,identifies geometry datatypes as well as simple datatypes,then integrates all these features and eliminates improper components to output the optimal schema.Experiments demonstrate that Gstruct is effective in extracting semantically meaningful schemas from GML documents.
Geography Markup Language(GML) GML schema schema extraction
Hui Chen Fubao Zhu Jihong Guan Shuigeng Zhou
Dept.of Computer Sci.and Tech.,Tongji University,Shanghai,200092,China School of Computer and Communication Engineering,Zhengzhou University of Light Industry,Zhengzhou,45 Dept.of Computer Sci.and Eng.,Fudan University,Shanghai,200433,China
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）