For SPADE, we applied the same modifications to its default settings as described in Fisher and Roark (2007), which delivers significantly improved performance over its original version.
in our experiments on the RST-DT corpus, we trained SPADE using the human-annotated syntactic trees extracted from the Penn Treebank (Marcus, Marcinkiewicz, and Santorini 1994), and, during testing, we replaced the Charniak parser (Charniak 2000) with a more Table 3 Discourse segmentation results of different models on the two corpora.