“…At the beginning of this century, scientists started to use scaling algorithms such as wordfish and wordscore to place party manifestos on an ideological scale (Laver, Benoit, and Garry 2003;Laver and Garry 2000). Today, the research which uses Tzelgov and Olander (2018), and Benoit and Herzog (2017); Schwarz, Traber, and Benoit (2017), Lauderdale and Herzog (2016), and Debus and Bäck (2014); Proksch and Slapin (2012), Proksch and Slapin (2010), and Slapin and Proksch (2008) scaling algorithms Diermeier et al (2012) SVM Gentzkow, Shapiro, and Taddy (2016) custom model polarization Curini, Hino, and Osaka (2018) wordfish Goet (2019), Abercrombie and Batista-Navarro (2018), and Peterson and Spirling (2018) text classifier Spirling, Huang, and Patrick (2018) bayesian Rheault and Cochrane (2019) word embeddings sentiment Rheault, Beelen, et al (2016) GloVe Proksch, Lowe, et al (2018) Multilingual dictionary floor time Blumenau (2019) and Bäck, Debus, and Müller (2014) regression topical prevalence Høyland and Søyland (2019) and Greene and Cross (2017) topic models…”