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Assessing the accuracy of volunteered geographic information arising from multiple contributors to an internet based collaborative project

Foody, Giles M.; See, L.; Fritz, S; Van der Velde, M.; Perger, C.; Schill, C.; Boyd, D.S.

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Authors

GILES FOODY giles.foody@nottingham.ac.uk
Professor of Geographical Information

L. See

S Fritz

M. Van der Velde

C. Perger

C. Schill

DOREEN BOYD doreen.boyd@nottingham.ac.uk
Professor of Earth Observation



Abstract

The recent rise of neogeography and citizen sensing has increased the opportunities for the use of crowdsourcing as a means to acquire data to support geographical research. The value of the resulting volunteered geographic information is, however, often limited by concerns associated with its quality and the degree to which the contributing data sources may be trusted. Here, information on the quality of sources of volunteered geographic information was derived using a latent class analysis. The volunteered information was on land cover interpreted visually from satellite sensor images and the main focus was on the labeling of 299 sites by seven of the 65 volunteers who contributed to an Internet-based collaborative project. Using the information on land cover acquired by the multiple volunteers it was shown that the relative, but not absolute, quality of the data from different volunteers could be characterized accurately. Additionally, class-specific variations in the quality of the information provided by a single volunteer could be characterized by the analysis. The latent class analysis, therefore, was able to provide information on the quality of information provided on an inter- and intra-volunteer basis.

Journal Article Type Article
Acceptance Date May 1, 2013
Online Publication Date May 22, 2013
Publication Date Dec 1, 2013
Deposit Date Apr 24, 2014
Publicly Available Date Apr 24, 2014
Journal Transactions in GIS
Print ISSN 1361-1682
Electronic ISSN 1361-1682
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 17
Issue 6
Pages 847-860
DOI https://doi.org/10.1111/tgis.12033
Public URL https://nottingham-repository.worktribe.com/output/1000479
Publisher URL https://onlinelibrary.wiley.com/doi/abs/10.1111/tgis.12033

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