Results 311 to 320 of about 386,358 (339)
Some of the next articles are maybe not open access.

Assessment of volunteered geographic information for vegetation mapping

Environmental Monitoring and Assessment, 2020
Vegetation mapping requires extensive field data for training and validation. Volunteered geographic information in the form of geotagged photos of identified plants has the potential to serve as a supplemental data source for vegetation mapping projects.
Kellie A. Uyeda, D. Stow, C. Richart
semanticscholar   +3 more sources

The credibility of volunteered geographic information [PDF]

open access: possibleGeoJournal, 2008
The proliferation of information sources as a result of networked computers and other interconnected devices has prompted significant changes in the amount, availability, and nature of geographic information. Among the more significant changes is the increasing amount of readily available volunteered geographic information.
Andrew J. Flanagin, Miriam J. Metzger
openaire   +1 more source

Thinking through people: The potential of volunteered geographic information for mobility and urban studies

Urban studies, 2021
Despite the ‘mobility turn’ in urban studies, there is surprisingly little research into the role people’s everyday movements play in driving urbanisation processes.
L. Howe
semanticscholar   +1 more source

Assuring the quality of volunteered geographic information [PDF]

open access: possibleSpatial Statistics, 2012
Abstract Volunteered geographic information (VGI) is a phenomenon of recent years, offering an alternative mechanism for the acquisition and compilation of geographic information. As such it offers substantial advantages, but suffers from a general lack of quality assurance.
Linna Li, Michael F. Goodchild
openaire   +1 more source

A comprehensive quality assessment framework for linear features from Volunteered Geographic Information

International Journal of Geographical Information Science, 2020
The majority of spatial data provided as Volunteered Geographic Information (VGI) are roads and other linear map features. Such data have been widely used in routing and navigation, road network update, emergency response, urban planning and more. Due to
Hao Wu   +5 more
semanticscholar   +1 more source

Spaces of Volunteered Geographic Information

SSRN Electronic Journal, 2013
Open any recent geography article or book that discusses the internet and you will find the opening sentences replete with the terms ‘new’, ‘change’, ‘proliferation’ and ‘recent’. Apparently something is brewing in digital space that makes geographers very excited. Cliches aside, it is clear that many of the most recent additions to the online world (e.
Matthew Zook, Ate Poorthuis
openaire   +2 more sources

Sample size and spatial configuration of volunteered geographic information affect effectiveness of spatial bias mitigation

Trans. GIS, 2020
Volunteered geographic information (VGI) can provide field samples for predictively mapping geographic phenomena. Yet the biased spatial coverage of VGI observations often undermines the fitness of use of VGI samples for predictive mapping.
Guiming Zhang, A. Zhu
semanticscholar   +1 more source

A Gamification Framework for Volunteered Geographic Information

2015
Using crowdsourcing methods to gather large amounts of useful geodata presents many challenges. One challenge is to attract volunteers to participate in crowdsourcing activities. Several studies conclude that to encourage crowdsourcing it is necessary to take into account people’s intrinsic motivation (e.g. fun, altruism, ambition).
Martella, Roberta   +2 more
openaire   +2 more sources

Automated geographic context analysis for volunteered information

Applied Geography, 2013
Abstract Several studies show the impacts of (geo)social media and Volunteered Geographic Information (VGI) during crisis events, and have found intrinsic value for rescue teams, relief workers and humanitarian assistance coordinators, as well as the affected population.
Frank O. Ostermann, Laura Spinsanti
openaire   +2 more sources

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