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http://dx.doi.org/10.11108/kagis.2010.13.4.170

Development of Subsurface Spatial Information Model with Cluster Analysis and Ontology Model  

Lee, Sang-Hoon (Ubiquitous Land Implementation Division, Korea Institute of Construction Technology)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.13, no.4, 2010 , pp. 170-180 More about this Journal
Abstract
With development of the earth's subsurface space, the need for a reliable subsurface spatial model such as a cross-section, boring log is increasing. However, the ground mass was essentially uncertain. To generate model was uncertain because of the shortage of data and the absence of geotechnical interpretation standard(non-statistical uncertainty) as well as field environment variables(statistical uncertainty). Therefore, the current interpretation of the data and the generation of the model were accomplished by a highly trained experts. In this study, a geotechnical ontology model was developed using the current expert experience and knowledge, and the information content was calculated in the ontology hierarchy. After the relative distance between the information contents in the ontology model was combined with the distance between cluster centers, a cluster analysis that considered the geotechnical semantics was performed. In a comparative test of the proposed method, k-means method, and expert's interpretation, the proposed method is most similar to expert's interpretation, and can be 3D-GIS visualization through easily handling massive data. We expect that the proposed method is able to generate the more reasonable subsurface spatial information model without geotechnical experts' help.
Keywords
Subsurface Spatial Information Model; Cluster Analysis; Semantics; Ontology; 3D-GIS;
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Times Cited By KSCI : 2  (Citation Analysis)
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