eRST: A Signaled Graph Theory of Discourse Relations and Organization

arXiv:2403.13560v1 Announce Type: new
Abstract: In this article we present Enhanced Rhetorical Structure Theory (eRST), a new theoretical framework for computational discourse analysis, based on an expansion of Rhetorical Structure Theory (RST). The framework encompasses discourse relation graphs with tree-breaking, nonprojective and concurrent relations, as well as implicit and explicit signals which give explainable rationales to our analyses. We survey shortcomings of RST and other existing frameworks, such as Segmented Discourse Representation Theory (SDRT), the Penn Discourse Treebank (PDTB) and …

abstract analysis article arxiv breaking computational cs.cl discourse expansion framework graph graphs organization relations theory tree type