However, due to the
availability of new digital data sources it is now possible to measure
the tourist composition in time and space more precisely. For
instance, geo-tagged photographs from the photo-sharing website
Flickr (Girardin et al., 2008) or geo-located Twitter messages
(Hawelka et al., 2014) can be used to segment tourists based on
their country of residence and their spatiotemporal movement
patterns.