TITLE:
Metadata Extended Model Based On Geological Domain Ontology
AUTHORS:
Ying HUANG, Mingqiang GUO, Xiangang LUO, Zhong XIE
KEYWORDS:
ontology; geological domain ontology; metadata; metadata extended model
JOURNAL NAME:
Journal of Geographic Information System,
Vol.1 No.1,
September
8,
2009
ABSTRACT: The current metadata modeling techniques can not meet the needs of knowledge conception expression, knowledge organization, and metadata semantic consistency in geological domain. This paper introduces ontology and integrates this theory to geological domain metadata modeling. It adopts the first order logic equivalent algorithm and defines the metadata extended model as a quaternion group which is consists of geological term set, geological term definition set, attribute definition set and instance set. It also provides the formal description of each set. Finally the five steps for building geological domain metadata extended model are given. The result presents that this model not only provides the content standards for geological domain knowledge representation and knowledge organization, but also provides the basis for geological domain multi-source data and historical data integration and application in semantic consistency.