The NATMAP digital geoscience data-management system
Computers & Geosciences
Toward principles for the design of ontologies used for knowledge sharing
International Journal of Human-Computer Studies - Special issue: the role of formal ontology in the information technology
Using explicit ontologies in KBS development
International Journal of Human-Computer Studies
Understanding, building and using ontologies
International Journal of Human-Computer Studies
Knowledge engineering: principles and methods
Data & Knowledge Engineering - Special jubilee issue: DKE 25
Information modeling in the time of the revolution
Information Systems - Special issue: selected papers from the 9th International Conference on advanced information systems engineering (CA ISE '97)
The entity-relationship model—toward a unified view of data
ACM Transactions on Database Systems (TODS) - Special issue: papers from the international conference on very large data bases: September 22–24, 1975, Framingham, MA
Ontologies for geographic information processing
Computers & Geosciences - Intelligent methods for processing geodata
Building a Large Knowledge Base from a Structured Source
IEEE Intelligent Systems
Knowledge Processes and Ontologies
IEEE Intelligent Systems
Proceedings of the Seventeenth National Conference on Artificial Intelligence and Twelfth Conference on Innovative Applications of Artificial Intelligence
Knowledge level modelling: concepts and terminology
The Knowledge Engineering Review
An ontology-based knowledge management system for flow and water quality modeling
Advances in Engineering Software
Computers in Industry - Special issue: Collaborative environments for concurrent engineering
Developing a modular hydrogeology ontology by extending the SWEET upper-level ontologies
Computers & Geosciences
MAP IT: The GIS software for field mapping with tablet pc
Computers & Geosciences
A geo-spatial data management system for potentially active volcanoes-GEOWARN project
Computers & Geosciences
Building a global normalized ontology for integrating geographic data sources
Computers & Geosciences
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A geologic information system was utilized for geologic mapping in Korea using a spatiotemporal ontology model. Five steps were required to make the GIS representation of the geologic map information. The first step was to limit the geologic mapping to Korean area. The second step was to extract the rock units with spatial objects from the geologic map and the geologic time units with temporal objects. The third step was to standardize the geologic terms in Korean and English for both the spatial and temporal objects. The fourth step was to conceptualize the classified objects in the geologic map units and the formation of guidelines for the specification of a spatiotemporal ontology model. Finally, we constructed a spatiotemporal retrieval system and an ontology system related to the geologic map of Korea, which were applied to the spatiotemporal ontology model. The spatiotemporal ontology model was defined as a sophisticated model that provides for the evolution from a data base to a knowledge base. This ontology model can be conceptualized as a well-defined set of terms used for expressing spatial objects in rock units and temporal objects in geologic time units, as well as a system of contents and structures. In addition, it includes symbology units such as color and pattern symbols mapped one-to-one with the spatiotemporal concepts. The existing information retrieval services provide information that is limited to the user's knowledge, whereas our geologic ontology system provides a broad range of information in graphical form, including locations and interrelationships. In this way, the information can be upgraded to the level of knowledge. A geologic term tree was designed, based on the existing classification schemes, with the goal of creating an accessible internet source.