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A Semantic Heterogeneity Oriented Approach to Updating GIS Client Database

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Yuhong Wang; Shengwu Hu
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Abstract:

Data updating is a significant stage in the life of a geographical information system (GIS). When geodata producers have finished updating their own database, the problem...Show More

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Abstract:

Data updating is a significant stage in the life of a geographical information system (GIS). When geodata producers have finished updating their own database, the problem of how to use the updates in new version of MDB to update the users' database has become a research focus. Due to differences in some ways such as subject background, design methodology, application purpose, there may be much semantic heterogeneities between these two databases although they are abstraction of the same geographic phenomena. Because of these heterogeneities, GIS client database updating will be a complex and time-taking process. To improve its efficiency, we propose an implementing framework based on schema matching, and give some automated solutions to the operations within this framework, such as schema matching, entity identification, updates extraction and integration.
Published in: 2009 WASE International Conference on Information Engineering
Date of Conference: 10-11 July 2009
Date Added to IEEE Xplore: 21 August 2009
Print ISBN:978-0-7695-3679-8
DOI: 10.1109/ICIE.2009.25
Conference Location: Taiyuan, China
References is not available for this document.
Contents

I. Introduction

Simply speaking, GIS client database updating is to use updating information (updates) from the new version of MDB to revise, improve and correct the content of the CDB for ensuring that it also has a current representation of the terrain. Here, MDB (master database) refers to the fundamental geographical database constructed by the surveying agents, CDB (Client Database) refers to the database of application departments derived from the copy of MDB by reengineering on it.

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