Results 11 to 20 of about 2,828 (206)

VGI QUALITY CONTROL [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
This paper presents a framework for considering quality control of volunteered geographic information (VGI). Different issues need to be considered during the conception, acquisition and post-acquisition phases of VGI creation.
C. C. Fonte   +7 more
doaj   +8 more sources

A VGI Quality Assessment Method for VGI based on Trustworthiness [PDF]

open access: goldGI_Forum, 2016
Recent advances in technology have greatly transformed how geographic information is produced and have led to the phenomenon of Volunteered Geographic Information (VGI). VGI allows people with little geographical knowledge to contribute in the creation of maps and other kinds of geographic information.
Amir Masoud Forati, Farid Karimipour
openalex   +2 more sources

VGI ed emergenze

open access: yesGEOmedia, 2016
Availability of up-to-date geographic datasets, including the information voluntarily created by ordinary people, is crucial for disaster management in areas affected by catastrophic events and humanitarian crises. OpenStreetMap (OSM) is the most popular
Flavio Lupia   +4 more
doaj   +4 more sources

Sources of VGI for Mapping

open access: hybrid, 2017
The concept of Volunteered Geographic Information (VGI) is often exemplified by the mapping of features in OpenStreetMap (OSM), yet there are many other sources of VGI available. Some VGI is very focused on the creation of map-based products, while in other applications location is simply one attribute that is routinely collected, due to the ...
Linda See   +8 more
openalex   +4 more sources

Advancing Science with VGI: Reproducibility and Replicability of Recent Studies using VGI [PDF]

open access: yesTransactions in GIS, 2016
AbstractIn scientific research, reproducibility and replicability are requirements to ensure the advancement of our body of knowledge. This holds true also for VGI‐related research and studies. However, the characteristics of VGI suggest particular difficulties in ensuring reproducibility and replicability.
Ostermann, Frank, Granell, Carlos
openaire   +2 more sources

Economic Valuation of Vehicle-Grid Integration (VGI) in a Demand Response Application from Each Stakeholder’s Perspective

open access: yesEnergies, 2021
Recently, the use of electric vehicles in a power grid has been attracting attention. The success of vehicle-grid integration (VGI) requires the active participation of not only VGI service providers but also electric vehicle owners, utility companies ...
Yongma Moon   +4 more
doaj   +1 more source

Segmentation based traversing-agent approach for road width extraction from satellite images using volunteered geographic information [PDF]

open access: yesApplied Computing and Informatics, 2021
We make use of the Volunteered Geographic Information (VGI) data to extract the total extent of the roads using remote sensing images. VGI data is often provided only as vector data represented by lines and not as full extent.
Prajowal Manandhar   +2 more
doaj   +1 more source

A Systems Perspective on Volunteered Geographic Information

open access: yesISPRS International Journal of Geo-Information, 2014
Volunteered geographic information (VGI) is geographic information collected by way of crowdsourcing. However, the distinction between VGI as an information product and the processes that create VGI is blurred.
Victoria Fast, Claus Rinner
doaj   +1 more source

IT Services and Crowdsourcing in Support of the Hellenic Cadastre: Advanced Citizen Participation and Crowdsourcing in the Official Property Registration Process

open access: yesISPRS International Journal of Geo-Information, 2020
Greece is one of the few European countries that has not yet a fully operating Cadastre at national coverage. Cadastral surveying and property registration have been completed only for about 8% of the Greek territory, which includes about 18% of the ...
George Mourafetis, Chryssy Potsiou
doaj   +1 more source

Semantic integration of authoritative and VGI

open access: green, 2013
Presentation given at ACTIVITY workshop (AGILE 2013 Conference).
Martinez Jimena
openalex   +3 more sources

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