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Yanrui Zhai, Xiran Zhou and Honghao Li
The emergence of the third information wave makes extensive maps available to be generated by volunteered ways, never specially designed and generated by professional institutes alone. These large-scale images-based volunteered maps created by the public...
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Roberto Pizzolotto
Where the streets have no name is probably the preferred place for a volunteer OpenStreetMapper. Launched in 2004, the Open Street Map project aimed to share geographical data based on volunteer mapping and led to the collection of geographical data from...
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Teresa Santos, Ricardo Nogueira Mendes, Estela I. Farías-Torbidoni, Rui Pedro Julião and Carlos Pereira da Silva
Data obtained through Volunteered Geographical Information (VGI) have gradually been used to monitor and support planning mainly in urban contexts. Regarding recreational activities in peri-urban green and natural areas, VGI has been used to map, measure...
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Nan Cui, Nick Malleson, Victoria Houlden and Alexis Comber
Volunteered Geographical Information (VGI) and social media can provide information about real-time perceptions, attitudes and behaviours in urban green space (UGS). This paper reviews the use of VGI and social media data in research examining UGS. The c...
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Quy Thy Truong, Guillaume Touya and Cyril de Runz
Though Volunteered Geographic Information (VGI) has the advantage of providing free open spatial data, it is prone to vandalism, which may heavily decrease the quality of these data. Therefore, detecting vandalism in VGI may constitute a first way of ass...
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Toshikazu Seto, Hiroshi Kanasugi and Yuichiro Nishimura
Although the data obtained from volunteered geographic information (VGI) are inherently different from public surveys, the quantity of the data are vast and the quality of the data are often poor. To improve the quality of VGI data, the positional accura...
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Franz-Benjamin Mocnik, Christina Ludwig, A. Yair Grinberger, Clemens Jacobs, Carolin Klonner and Martin Raifer
People share data in different ways. Many of them contribute on a voluntary basis, while others are unaware of their contribution. They have differing intentions, collaborate in different ways, and they contribute data about differing aspects. Shared Dat...
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Annetta Burger, Talha Oz, William G. Kennedy and Andrew T. Crooks
Disaster events and their economic impacts are trending, and climate projection studies suggest that the risks of disaster will continue to increase in the near future. Despite the broad and increasing social effects of these events, the empirical basis ...
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Recep Can, Sultan Kocaman and Candan Gokceoglu
Several scientific processes benefit from Citizen Science (CitSci) and VGI (Volunteered Geographical Information) with the help of mobile and geospatial technologies. Studies on landslides can also take advantage of these approaches to a great extent. Ho...
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Hamed Mehdipoor, Raul Zurita-Milla, Ellen-Wien Augustijn and Arnold J. H. Van Vliet
The increasing availability of volunteered geographic information (VGI) enables novel studies in many scientific domains. However, inconsistent VGI can negatively affect these studies. This paper describes a workflow that checks the consistency of Volunt...
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