Researchers in the NLP community have studied power and influence in various genres of interactions, such as organizational email threads (Bramsen et al., 2011;Gilbert, 2012;Prabhakaran and Rambow, 2013;, online discussion forums (Danescu-Niculescu-Mizil et al., 2012;Biran et al., 2012) and online chat dialogs (Strzalkowski et al., 2012).
the variation in the topic shifting tendencies is significantly correlated with the candidates' recent poll standings.