Figure 1From: A language framework for modeling social media account behaviorBLOC strings for a sequence of three tweets (a reply, an original tweet, and a retweet) by the @NASA account. Using the action alphabet, the sequence can be represented by three word \(p.T.r\) separated by dots. Using the content alphabet, it can be represented by these three words \((\mathit{Emt})(\mathit{mmt})(\mathit{mmmmmUt})\) enclosed in parentheses. See Sect. 3 for detailsBack to article page