Building and Analyzing Corpus to Investigate Appropriateness of Argumentative Discourse Structure for Facilitating Consensus
Clarifying characteristics of appropriate argumentative discourse is important for developing computer assisted argumentation systems. We describe the analysis of argumentative discourse structure on the basis of Rhetorical Structure Theory in order to clarify what kind of argumentative discourse structure should be considered appropriate. We think that there exist specific agreement-oriented sequences of rhetorical relations in argumentative discourse that tend to lead to an agreement. We build a small argumentative corpus annotated with rhetorical relations and calculate posteriori probability for rhetorical relations bigrams to investigate what rhetorical relations precede agreement.