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Proceedings Paper

Gstruct: a system for extracting schemas from GML documents
Author(s): Hui Chen; Fubao Zhu; Jihong Guan; Shuigeng Zhou
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Paper Abstract

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.

Paper Details

Date Published: 3 November 2008
PDF: 11 pages
Proc. SPIE 7143, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 714309 (3 November 2008); doi: 10.1117/12.812530
Show Author Affiliations
Hui Chen, Tongji Univ. (China)
Fubao Zhu, Zhengzhou Univ. of Light Industry (China)
Jihong Guan, Tongji Univ. (China)
Shuigeng Zhou, Fudan Univ. (China)


Published in SPIE Proceedings Vol. 7143:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang; Aijun Chen, Editor(s)

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