Legal argumentation can be modeled using logic, but in this chapter it is claimed that logic alone does not suffice. A model should also take the rhetoric nature of legal argumentation into account. DiaLaw is such a model: a formal, procedural model in which the logical and rhetorical aspects of argumentation are combined. The core of this chapter consists of a description of the basic concepts...

RASTA (Rhetorical Structure Theory Analyzer), a discourse analysis component within the Microsoft English Grammar, efficiently computes representations of the structure of written discourse using information available in syntactic and logical form analyses. RASTA heuristically scores the rhetorical relations that it hypothesizes, using those scores to guide it in producing more plausible discou...

Scott and Souza have posed the problem of how a rhetorical structure in which proposi tions are linked by rhetorical relations but not yet arranged in a linear order can be realized by a text structure in which propositions are ordered and linked up by appropriate discourse connectives Almost all work on this problem assumes implicitly or explicitly that this map ping is governed by a constrain...

This paper addresses discourse structure from the perspective of understanding. It would perhaps help us understand the na,ture of discourse relatiolls il" we better understood what units of a text. can be related to one a.nother. In Olle ma.jor theory of discourse structure, Rhetorical Structure Theory (Mann &: Thompson 1988; Imrea.l'ter simply RS'T), the smallest possible linguistic units tha...

In this paper, we propose a Connectivedriven Dependency Tree (CDT) scheme to represent the discourse rhetorical structure in Chinese language, with elementary discourse units as leaf nodes and connectives as non-leaf nodes, largely motivated by the Penn Discourse Treebank and the Rhetorical Structure Theory. In particular, connectives are employed to directly represent the hierarchy of the tree...

Questions play a prominent role in social interactions, performing rhetorical functions that go beyond that of simple informational exchange. The surface form of a question can signal the intention and background of the person asking it, as well as the nature of their relation with the interlocutor. While the informational nature of questions has been extensively examined in the context of ques...

The IMAGENE project has studied the expression of actions in the context of instructional text generation. The approach employs a rather traditional interpretation of Rhetorical Structure Theory (RST) (Mann and Thompson, 1989), using it both as a descriptive tool and as a constructive tool (Mann and Thompson, 1987). No explicit representation of and reasoning about intentions was employed. In t...

Empirical studies of text coherence often use tree-like structures in the spirit of Rhetorical Structure Theory (RST) as representational device. This paper identifies several sources of ambiguity in RST-inspired trees and argues that such structures are therefore not as explanatory as a text representation should be. As an alternative, an approach toward multi-level annotation (MLA) of texts i...

This paper provides a corpus-based generic characterization of appointment-scheduling dialogues—a type of task-oriented conversation—by concentrating on the rhetorical and thematic choices made by the speakers that produce them. The analytical tools used for this study are Rhetorical Structure Theory (RST), the notion of Theme as defined in Systemic Functional Linguistics, and Thematic Progress...