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Official and crowdsourced geospatial data integration.
Transcript
VGI, UGSP, neogeography, crowdmapping
why don´t use VGI to update official geodata?
Why don´t return the data to the community and close the cycle?
Open Data policies- Linked Open Data principles
Web 2.0
user generated
spatial content
volunteered
geographic
information
users become producers
?
Governments have official data
and updated in shorter cycles
NMAs have official geospatial data
PROBLEMS
Integration
Data quality
Ontology based approach
Quality measurement
NMA dataset
OSM dataset
Crowdsourced Quality
(users, edits)
New updating process
Traditional Quality
(ISO)
OSM ontology
which dataset is better?
new approach:
using VGI
as the "better" dataset against which to compare official dataset
domain ontology
Updated official geodata using VGI
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