From Topic Networks to Distributed Cognitive Maps: Zipfian Topic Universes in the Area of Volunteered Geographic Information

Figure 12

Schematic depiction of informational sources explored to link topics (red vertices) in an n-level topic network, , as a function of the textual relatedness of texts (blue vertices) (belonging to layer of Definition 1), the social relatedness of corresponding authors (green vertices) (belonging to layer of Definition 1), the lexical relatedness of corresponding words (orange vertices) (belonging to layer of Definition 1), and additional layers of contextual patterns concerning, for example, the underlying medium, genre, or register instantiated by the texts under consideration.