Optimized Spatial Query for Data Integration Based on Semantics

Abstract:

Data integration of geospatial data in distributed, heterogeneous environment involves the use of semantic ontologies. In this kind of integration system, semantic technologies play an important role in improving performance and effectiveness of spatial queries. This paper focuses on methods of query optimization based on spatial semantics at the top level of semantic layer in central data integration systems. After analyzing the hybrid approach for spatial data integration, two categories of query optimization strategies are proposed based on detailed examination of special characteristics of spatial data. With spatial knowledge explicitly specified in ontologies and associated rules, spatial queries can be optimized intelligently.

• Periodical: Applied Mechanics and Materials (Volumes 229-231)
• Pages: 1895-1899
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.229-231.1895
• Online since: November 2012
• Authors: Shen Yi Qian, Hao Dong Zhu
• Keywords: Data Integration, Query Optimization, Spatial Characteristics, Spatial Query, Spatial Semantics

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