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isprsannals II 3 W5 277 2015

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Figure 1: ontology representing the proposed user’s driven quality-based selection of VGI items
Figure 2: high level sketch of the user driven VGI items selection based on querying quality indicators
Table 2b: an example of VGI elementary components and correspondent elementary quality indicators for a measurement
Table 3: list of plausible VGI items used in the simulation.
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