Results 11 to 20 of about 70,960 (280)

Crowdsourcing, Citizen Science or Volunteered Geographic Information? The Current State of Crowdsourced Geographic Information [PDF]

ISPRS International Journal of Geo-Information, 2016
Citizens are increasingly becoming an important source of geographic information, sometimes entering domains that had until recently been the exclusive realm of authoritative agencies.
Linda See, Peter Mooney, Giles Foody, Lucy Bastin, Alexis Comber, Jacinto Estima, Steffen Fritz, Norman Kerle, Bin Jiang, Mari Laakso, Hai-Ying Liu, Grega Milčinski, Matej Nikšič, Marco Painho, Andrea Pődör, Ana-Maria Olteanu-Raimond, Martin Rutzinger   +16 more
doaj   +10 more sources

Recent Developments and Future Trends in Volunteered Geographic Information Research: The Case of OpenStreetMap [PDF]

Future Internet, 2014
User-generated content (UGC) platforms on the Internet have experienced a steep increase in data contributions in recent years. The ubiquitous usage of location-enabled devices, such as smartphones, allows contributors to share their geographic ...
Anderson, Anthony, Bishr, Brassel, Coleman, Coleman, Coleman, Dennis Zielstra, Elwood, Goetz, Goetz, Goetz, Hunter, Janowicz, Kuhn, O’Reilly, Pascal Neis, Poser, Ramm, Ramm, Raymond, Roick, Rouse, Scheider, Tapscott, Touya, Wunsch-Vincent, Zielstra   +27 more
core   +3 more sources

Volunteered geographic information in crisis management [PDF]

, 2017
During the disaster, rescue groups are responsible for tasks that require different types of information to optimize their activities. Preparation and distribution of information are very sensitive. The acquisition of new data and events such as degraded
Azizkhani, Mostafa, Malek, Mohammad Reza, Naseri, Farzin, Shankayi, Mohammad   +3 more
core   +1 more source

Assessing Completeness and Spatial Error of Features in Volunteered Geographic Information

ISPRS International Journal of Geo-Information, 2013
The assessment of the quality and accuracy of Volunteered Geographic Information (VGI) contributions, and by extension the ultimate utility of VGI data has fostered much debate within the geographic community.
Anthony Stefanidis, Arie Croitoru, Andrew Crooks, Peggy Agouris, William Mullen, Steven P. Jackson   +5 more
doaj   +3 more sources

Completeness of citizen science biodiversity data from a volunteered geographic information perspective

Geo-spatial Information Science, 2017
Observations of living organisms by citizen scientists that are reported to online portals are a valuable source of information. They are also a special kind of volunteered geographic information (VGI).
Clemens Jacobs, Alexander Zipf
doaj   +2 more sources

MEASURING THE SPATIAL SIMILARITIES IN VOLUNTEERED GEOGRAPHIC INFORMATION [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Volunteered citizens have the potential to be used as social and distributed sensors, monitoring their surroundings and producing and sharing massive amounts of geographic data.
N. Mahmoody-Vanolya, M. R. Jelokhani-Niaraki   +1 more
doaj   +1 more source

Multiple sources of volunteered geographic information strengthen holistic estimates of lake visitation [PDF]

PLoS ONE
Rachel M. Fricke, Spencer A. Wood, Julian D. Olden   +2 more
doaj   +2 more sources

TOWARDS RULE-GUIDED CLASSIFICATION FOR VOLUNTEERED GEOGRAPHIC INFORMATION [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Crowd-sourcing, especially in form of Volunteered Geographic Information (VGI) significantly changed the way geographic data is collected and the products that are generated from them.
A. Loai Ali, F. Schmid, Z. Falomir, C. Freksa   +3 more
doaj   +1 more source

Placial-Discursive Topologies of Violence: Volunteered Geographic Information and the Reproduction of Violent Places in Recife, Brazil

ISPRS International Journal of Geo-Information, 2022
Knowledge and experiences of violence transform the ways in which individuals perceive the urban landscape, construct and reproduce (un)safety, and make everyday decisions regarding mobility and the use of space.
Cléssio Moura de Souza, Dominik Kremer, Blake Byron Walker   +2 more
doaj   +1 more source

A Systems Perspective on Volunteered Geographic Information

ISPRS 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