2009 Volume 48 Issue 1 Pages 32-40
Many standardization organizations are working for syntactic level of interoperability, but in the same time, semantic interoperability of data must be considered for earth observation data. Remote sensing ontology is developed for not only integrating global observation data, but also knowledge sharing and transfer. Ontological information is used for data sharing and data service such as support of metadata design, structuring of data contents, and support of data mining. Semantic network dictionary is constructed based on Semantic MediaWiki. Ontological information are added to the dictionary by digitalizing text based dictionaries, developing “knowledge writing tool” for experts, and extracting semantic relations from authoritative documents with natural language processing technique.