A schema-matching-based approach to propagating updates between heterogeneous spatial databases

Yu-hong Wang; Feng-yuan Wei

doi:10.1117/12.813096

10 November 2008 A schema-matching-based approach to propagating updates between heterogeneous spatial databases

Yu-hong Wang, Feng-yuan Wei

Proceedings Volume 7146, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses; 714605 (2008) https://doi.org/10.1117/12.813096
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

Simply speaking, updates propagation is to use updates from one newly-updated database (called Master Database, MDB) to revise, improve and correct the content of the other database (Called Client Database, CDB) for ensuring that CDB also has a current representation of the terrain. Currently, updates propagation between spatial databases is usually a complex and time-taking process because of the multi-level potential heterogeneities between them and the special requirement of keeping the updated CDB autonomous, complete, correct, and consistent as much as before. To simplify and improve the propagation of updates, a detailed classification of the possible heterogeneities between MDB and CDB is introduced and their influences on updates propagation are also analyzed. Based on these analyses, an appraoch based on schema matching is proposed to effectively implement updates propagation. The automated solutions to operations involved in this approach are discussed in detail, such as schema matching, entity identification, updates extraction, and updates integration.

Citation Download Citation

Yu-hong Wang and Feng-yuan Wei "A schema-matching-based approach to propagating updates between heterogeneous spatial databases", Proc. SPIE 7146, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses, 714605 (10 November 2008); https://doi.org/10.1117/12.813096

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