“…Hashtags (for example, Bruns & Stieglitz, 2013;Perez-Altable, 2015;Holmberg & Hellsten, 2016) and hashtags in combination with keywords (boyd, Golder, & Lotan, 2010;Himelboim, Smith, Rainie, Shneiderman, & Espina, 2017) have been used for selecting a data set for analysis, and for identifying ad hoc publics on Twitter (Bruns & Burgess, 2011). boyd et al (2010 showed that 36% of tweets contained a @username, but as few as 5% contained a #hashtag, whereas the more recent results by Gerlitz and Rieder (2013) presented 57,2% containing @usernames and 13% containing one or more hashtags.…”