European Handbook of Crowdsourced Geographic Information 2016
DOI: 10.5334/bax.c
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Why is participation inequality important?

Abstract: Participation inequality -the phenomenon that a very small percentage of participants contribute a very significant proportion of information to the total output -is persistent across Volunteered Geographic Information (VGI) and citizen science projects. It has been identified in both online and offline projects that rely on volunteers' effort over the past 20 years and, therefore, can be expected to appear in new projects. This chapter looks at participation inequality (also known as the 1% rule or the 90-9-1… Show more

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Cited by 52 publications
(35 citation statements)
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“…Yang et al [4] conducted a temporal analysis of the inequality of contribution in OSM in different countries, indicating that contribution inequality is related to the import of data. After exploring the emergence of participation inequality on both temporal and spatial scales and evaluating the implications for the use of VGI, Haklay [12] proposed that the contribution inequality in the analysis of a VGI project must be considered. In the initial Mapillary research, contribution inequality was also found [8], showing that a small number of people have a large average contribution per week, accompanied by a longer contribution activity.…”
Section: Related Workmentioning
confidence: 99%
“…Yang et al [4] conducted a temporal analysis of the inequality of contribution in OSM in different countries, indicating that contribution inequality is related to the import of data. After exploring the emergence of participation inequality on both temporal and spatial scales and evaluating the implications for the use of VGI, Haklay [12] proposed that the contribution inequality in the analysis of a VGI project must be considered. In the initial Mapillary research, contribution inequality was also found [8], showing that a small number of people have a large average contribution per week, accompanied by a longer contribution activity.…”
Section: Related Workmentioning
confidence: 99%
“…The direct impacts of the gender bias, that is the specific nuances of how, however, remain woefully under-articulated within the limited body of work on gender dimensions in VGI, an observation that is made in relation to the wider spectrum of demographically biased participation in crowdsourcing geospatial data (Haklay 2016;Quattrone et al 2015). The fem2map 2 research project conducted by the Technical University of Vienna aimed to elevate female participation in VGI and resulted in several findings regarding female engagement in VGI (see below).…”
Section: Gender Representation In Vgimentioning
confidence: 99%
“…Though skew is typically unplanned, the reality is that citizen science contributions are often heavily unbalanced with a small percentage of highly active participants having the greatest influence on the resulting dataset. Furthermore, skew appears to be a common characteristic of citizen science projects irrespective of whether participation is primarily online or on-the-ground (Haklay 2016). This phenomenon is known as the Pareto principle and although not unique to citizen science, it is a common feature of most participatory science projects (Newman et al 2005).…”
Section: Discussionmentioning
confidence: 99%
“…Typically they take on the role of volunteer data collectors, but often they engage by using the data as well. In most projects, contributions are heavily unbalanced with only a small percentage of highly active participants influencing resulting datasets, but many other individuals potentially using them (Haklay 2016). This means that a best practice in citizen science is the provision of dataout or report-back capacity (Newman et al 2012), which provides participants with opportunities to interact with project data.…”
Section: Introductionmentioning
confidence: 99%