Results 1 to 10 of about 350,897 (268)

Volunteered and crowdsourced geographic information: the OpenStreetMap project [PDF]

open access: yesJournal of Spatial Information Science, 2020
Advancements in technology over the last two decades have changed how spatial data are created and used. In particular, in the last decade, volunteered geographic information (VGI), i.e., the crowdsourcing of geographic information, has revolutionized ...
Michela Bertolotto   +2 more
doaj   +4 more sources

Effect of the COVID-19 pandemic on the popularity of protected areas for mountain biking and hiking in Australia: Insights from volunteered geographic information. [PDF]

open access: yesJ Outdoor Recreat Tour, 2023
Although the popularity of protected areas for recreation has been increasing, short term changes in visitation occurred during the COVID-19 pandemic. To examine how volunteer geographic information data can be used to monitor such often rapid changes in
Smith I   +3 more
europepmc   +2 more sources

Identifying Evacuation Needs and Resources Based on Volunteered Geographic Information: A Case of the Rainstorm in July 2021, Zhengzhou, China. [PDF]

open access: yesInt J Environ Res Public Health, 2022
Recently, global climate change has led to a high incidence of extreme weather and natural disasters. How to reduce its impact has become an important topic.
Gao J, Murao O, Pei X, Dong Y.
europepmc   +2 more sources

Estimating Traffic Disruption Patterns with Volunteered Geographic Information. [PDF]

open access: yesSci Rep, 2020
AbstractAccurate understanding and forecasting of traffic is a key contemporary problem for policymakers. Road networks are increasingly congested, yet traffic data is often expensive to obtain, making informed policy-making harder. This paper explores the extent to which traffic disruption can be estimated using features from the volunteered ...
Camargo CQ   +4 more
europepmc   +9 more sources

Highlighting Current Trends in Volunteered Geographic Information [PDF]

open access: yesISPRS International Journal of Geo-Information, 2017
Volunteered Geographic Information (VGI) is a growing area of research. This Special Issue aims to capture the main trends in VGI research based on 16 original papers, and distinguishes between two main areas, i.e., those that deal with the ...
David Jonietz   +3 more
doaj   +5 more sources

Using volunteered geographic information to assess mobility in the early phases of the COVID-19 pandemic: a cross-city time series analysis of 41 cities in 22 countries from March 2nd to 26th 2020. [PDF]

open access: yesGlobal Health, 2020
Objectives Restricting mobility is a central aim for lowering contact rates and preventing COVID-19 transmission. Yet the impact on mobility of different non-pharmaceutical countermeasures in the earlier stages of the pandemic is not well-understood ...
Vannoni M   +4 more
europepmc   +2 more sources

Developing a Workflow to Identify Inconsistencies in Volunteered Geographic Information: A Phenological Case Study. [PDF]

open access: yesPLoS ONE, 2015
Recent improvements in online information communication and mobile location-aware technologies have led to the production of large volumes of volunteered geographic information. Widespread, large-scale efforts by volunteers to collect data can inform and
Hamed Mehdipoor   +4 more
doaj   +2 more sources

IL FENOMENO VOLUNTEERED GEOGRAPHIC INFORMATION

open access: yesGEOmedia, 2014
The contribution addresses the phenomenon of Voluntereed Geographic Information explaining these new and burgeoning sources of information offers multidisciplinary scientists an unprecedented opportunity to conduct research on a variety of topics at ...
Flavio Lupia, Cristina Capineri
doaj   +4 more sources

Quantifying Flood Water Levels Using Image-Based Volunteered Geographic Information

open access: yesRemote Sensing, 2020
Many people use smartphone cameras to record their living environments through captured images, and share aspects of their daily lives on social networks, such as Facebook, Instagram, and Twitter.
Yan-Ting Lin   +4 more
doaj   +2 more sources

THE VOLUNTEERED GEOGRAPHIC INFORMATION IN ARCHAEOLOGY [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
The purpose of the paper is to investigate the Volunteered Geographic Information (VGI), which is still at a very early stage, to identify its use worldwide including characteristic examples and research its potential applications in Cultural Heritage ...
S. Sylaiou   +3 more
doaj   +4 more sources

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