Rhetorical analysis seeks to uncover this coherence structure underneath the text; this has been shown to be beneficial for many Natural Language Processing (NLP) applications, including text summarization and compression (Marcu 2000b;Daumé and Marcu 2002;Sporleder and Lapata 2005;Louis, Joshi, and Nenkova 2010), text generation (Prasad et al.
the cost function for training the model is given by these two cascaded classifiers applied at different levels of the Dt.