Abstract. The role of Volunteered Geographic Information (VGI) to integrate, update or complement authoritative datasets released by governments has become increasingly important. This work analyses the contribution OpenStreetMap (OSM), most popular VGI project, as one input sources that Military Institute (IGM), Italian governmental mapping agencies, used for producing National Summary Databas...

We present an approach to determine the credibility of content provided within a visual VGI source such as Flickr. We propose analysing the variability of selected user and photo metadata of geotagged Flickr photos with the location correctness of these images, which is our reference quality measure. These observed user and photo metadata can help to infer the credibility of contributors.

There is increasing concern regarding the inequalities produced by digital platforms based on volunteered geographic information (VGI). Several forms of have been observed, namely unequal spatial coverage and uneven levels usage even in territories with good coverage. However, VGI under logic platform economy generated other inequality that require more attention. The cyberspace within producin...

Volunteered Geographical Information (VGI) and social media can provide information about real-time perceptions, attitudes behaviours in urban green space (UGS). This paper reviews the use of VGI data research examining UGS. The current state art is described through analysis 177 papers to (1) summarise characteristics usage from different platforms, (2) an overview topics using such sources, (...