Abstract

In view of existing structure heterogeneous and semantic heterogeneous, a multi-source data integration approach based on ontology is proposed. In this approach, constructed domain ontologies are used to describe data sources, and semantic integration for multi-source data is realized by using an information integration toolkit named KARMA to map multiple datasets to RDF data. By analyzing Food and Agriculture Organization (FAO)’s indicator datasets and World Health Organization (WHO)’s datasets, main concepts are extracted to construct indicator ontology, food security ontology, health ontology and human security ontology. KARMA models are created for mapping FAO datasets and WHO datasets to RDF data. Based on constructed ontology and published RDF data, an application system named Food Security Indicators Management System (FSIMS) is developed to implement food security data query …

Date

January 1, 1970

Authors

Hongyan Yun, Jianliang Xu, Craig A Knoblock, Ruibo Xu

Journal

International Journal of u-and e-Service, Science and Technology

Volume

9

Issue

9

Pages

75-88