Figure 4From: Assessing citizen science opportunities in forest monitoring using probabilistic topic modellingTerm/topic frequency and specificity for three sample topics: “galaxies” (T85), “risk perceptions” (T76), “birds” (T95). A term that is exclusive to one topic has a specificity of 1. The relative size of the plotted words is proportional to their frequency in the topic. The colour gradient from light to dark blue indicates larger frequencies of a word in the complete document set.Back to article page