Results 51 to 60 of about 386,358 (339)

Accurate attribute mapping from volunteered geographic information: issues of volunteer quantity and quality [PDF]

, 2015
Crowdsourcing is a popular means of acquiring data, but the use of such data is limited by concerns with its quality. This is evident within cartography and geographical sciences more generally, with the quality of volunteered geographic information (VGI)
Boyd, D.S., Comber, A., Foody, Giles M., Fritz, S., Perger, C., Schill, C., See, L., van der Velde, M.   +7 more
core   +2 more sources

Recent advances in Volunteered Geographic Information (VGI) and citizen sensing

International Journal of Digital Earth
Linda See, Ana-Maria Olteanu-Raimond, Cidália Costa Fonte   +2 more
doaj   +2 more sources

Retrieve volunteered geographic information for forest fire [PDF]

, 2011
The proposed contribution describes a methodology we are testing in the framework of an exploratory research project on the contribution of Volunteered Geographic Information (VGI) in the case-study of forest fires.
OSTERMANN Frank, SPINSANTI Laura
core   +4 more sources

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

, 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   +1 more source

Volunteered Geographic Information

, 2020
Volunteered geographic information (VGI) is spatial data that are gathered and shared by individuals to derive information about the world. VGI has largely been embraced due to the pervasiveness of mobile devices and affordances offered by the locational sensors that are housed within them.
openaire   +1 more source

Unpacking the role of volunteered geographic information in disaster management: focus on data quality

Geomatics, Natural Hazards & Risk
The increasing occurrence of disasters worldwide has motivated researchers to continuously evaluate potential technological advances to support disaster management (DM) as well as emergency response. The advent of Volunteered Geographic Information (VGI)
Marina Tavra, Anka Lisec, Morena Galešić Divić, V. Cetl   +3 more
semanticscholar   +1 more source

Using Auxiliary Population Samples for Sample-Selection Correction in Models Based on Crowd-Sourced Volunteered Geographic Information

Land Economics, 2021
Data from citizen science (CS) projects (and some social media) can offer selected samples with extensive information about human interactions with the natural world.
T. Cameron, Sonja H. Kolstoe
semanticscholar   +1 more source

Mining volunteered geographic information for predictive energy data analytics

Energy Informatics, 2018
Background Users create serious amounts of Volunteered Geographic Information (VGI) in Online platforms like OpenStreetMap or in real estate portals. Harvesting such data with the help of business analytics and machine learning methods yield promising ...
Konstantin Hopf
doaj   +1 more source

Privacy-Aware Visualization of Volunteered Geographic Information (VGI) to Analyze Spatial Activity: A Benchmark Implementation

ISPRS Int. J. Geo Inf., 2020
Through volunteering data, people can help assess information on various aspects of their surrounding environment. Particularly in natural resource management, Volunteered Geographic Information (VGI) is increasingly recognized as a significant resource,
A. Dunkel, Marc Löchner, D. Burghardt
semanticscholar   +1 more source

Exploring Data Model Relations in OpenStreetMap

Future Internet, 2017
The OpenStreetMap (OSM) geographic data model has three principal object types: nodes (points), ways (polygons and polylines), and relations (logical grouping of all three object types to express real-world geographical relationships).
Hippolyte Pruvost, Peter Mooney
doaj   +1 more source