The assessment of the quality and accuracy of Volunteered Geographic Information (VGI)
contributions, and by extension the ultimate utility of VGI data has fostered much debate …

There has been enormous progress in geospatial data acquisition in the last decade.
Centralized data collection, mainly by land surveying offices and local government …

Anyone can contribute geographic information to OpenStreetMap (OSM), regardless of their
level of experience or skills, which has raised concerns about quality. When reference data …

With the development of Volunteered Geographical Information (VGI) data, the
OpenStreetMap has high research value in terms of project activity, social influence, urban …

This contribution starts from the assumption that volunteered geographic information is a
technological, cultural and scientific innovation. It therefore offers first some general …

The current popularity of government open data platforms as a way to share geospatial data
has created an opportunity for government to receive direct feedback and edits on this very …

This chapter introduces the context and characteristics implicit in conventional digital
topographic mapping programs and then contrasts them to important underlying …

City governments around the world are developing and expanding how they connect to
citizens. Technologies play an important role in making this connection, and one frequent …

The terms user-generated content, volunteered geographical information, crowdsourcing,
citizen science and neogeography are elucidated. The purpose is to expose the range of …

Volunteered geographical information (VGI) refers to geographical information that the
general public voluntarily collects and shares in the environment instead of for-profit …