  We introduce our approach for incremental truth inference over the
contributions provided by players of Games with a Purpose: we motivate the need
for such a method with the specificity of GWAP vs. traditional crowdsourcing;
we explain and formalize the proposed process and we explain its positive
consequences; finally, we illustrate the results of an experimental comparison
with state-of-the-art approaches, performed on data collected through two
different GWAPs, thus showing the properties of our proposed framework.
