Crowdsourcing and school children? - A quality assessment on VGI collect by children -

Abstract

Abstract: (1) Motivation and societal relevance: In recent years, the advantages of volunteered geographic information (VGI) has attracted the attention of national mapping agencies (NMAs). The Dutch Cadastre has held a pilot-study in 2016 to gain information on the point of interest(POIs) collected by schoolchildren. However, as within all VGI projects uncertainty exists about the quality of data. The task is to identify methods and techniques so that the VGI collected by schoolchildren can be adequately evaluated, since these methods are currently missing. (2) Methods: the methodology exists out of two approaches (i) the methodology to determine the quality assessment method within a case-study, and (ii) a further exploration of this quality assessment method by the use of the datasets collected within the pilot-study. (3) Results: this research shows that the proposed approaches are complementary in assessing data quality. (4) conclusion: The quality assessment methods developed and used within this research are a first step towards a quality assessment method. Based on the results, more research is necessary to discover generic workflows or best practices that could be used to assess the VGI collected by schoolchildren.