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International Journal of Digital Earth Volume 8, 2015 - Issue 1
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Original Articles

Semantic analysis and retrieval of spatial data based on the uncertain ontology model in Digital Earth

Shengtao SunThe Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, ChinaView further author information
,
Lizhe WangInstitute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, ChinaCorrespondence[email protected]
View further author information
,
Rajiv RanjanComputational Informatics, CSIRO, Canberra, ACT, AustraliaView further author information
&
Aizhi WuCollege of Vehicles and Energy, Yanshan University, Qinhuangdao, ChinaView further author information
Pages 3-16 | Received 08 Mar 2014, Accepted 19 May 2014, Published online: 16 Jun 2014

Figures & data

Figure 1. The relations among concept, instance, and property.
Figure 1. The relations among concept, instance, and property.
Figure 2. The relationship between user requirement and remote sensing data.
Figure 2. The relationship between user requirement and remote sensing data.
Figure 3. The strength measurements of semantic associations based on PPV.
Figure 3. The strength measurements of semantic associations based on PPV.
Figure 4. The strength measurements of semantic associations based on PPV and NPV.
Figure 4. The strength measurements of semantic associations based on PPV and NPV.
Figure 5. The weight measurements of property importance based on DWP.
Figure 5. The weight measurements of property importance based on DWP.
Figure 6. The flowchart of semantic retrieval or inference judgment with DWP.
Figure 6. The flowchart of semantic retrieval or inference judgment with DWP.
Figure 7. The example of semantic relationships with uncertainty measurements.
Figure 7. The example of semantic relationships with uncertainty measurements.
Figure 8. Inference process examples with measurements of PPV and DWP.
Figure 8. Inference process examples with measurements of PPV and DWP.

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