This article aims to analyze how agreement regarding the central unit (macrostructure) influences agreement when establishing rhetorical relations (microstructure). To do so, the authors conducted an empirical study of abstracts from research articles in three domains (medicine, terminology, and science) in the framework of Rhetorical Structure Theory (RST). The results help to establish a new ...

In this article, we present the on-line interface that we have developed for the RST Spanish Treebank, the first corpus including Spanish texts annotated with rhetorical relations. This interface allows users to consult or download the texts and their corresponding annotations. In addition, it allows carrying out several tasks over a selected subcorpus: searching statistics in terms of words, r...

Discourses are the collaborative activities of (human) agents who have purposes for communicating. Discourse structure includes the purposes of those agents, which I take, following [GroszSid86], to be formally expressible as intentions and beliefs. While the theory of discourse structures has influenced how many computational linguists think about discourse processing, it does not preclude car...

We present an annotation effort that involves adding a new layer of annotation to an existing corpus. We are interested in how rhetorical relations are signalled in discourse, and thus begin with a corpus already annotated for rhetorical relations, to which we add signalling information. We show that a very large number of relations carry signals that can help identify them as such. The detaile...

Sequence Models and Ranking Methods for Discourse Parsing A dissertation presented to the Faculty of the Graduate School of Arts and Sciences of Brandeis University, Waltham, Massachusetts by Ben Wellner Many important aspects of natural language reside beyond the level of a single sentence or clause, at the level of the discourse, including: reference relations such anaphora, notions of topic/...

This tiiesis addresses a difficult problem in text processing: crealing a System lo automalically dérive rhetorical structures o f text. Allhough thè rhelorical structure lias proven to be useful in many fields o f text processing sucli as text summarisation and information extraction, Systems that auiomalically generate rhetorical structures with high accuracy are difficult to find. This is bc...

The availability of huge amounts of online opinions has created a new need to develop effective query-based opinion summarizers to analyze this information in order to facilitate decision making at every level. To develop an effective opinion summarization approach, we have targeted to resolve specifically Question Irrelevancy and Discourse Incoherency problems which have been found to be the m...

This work aims to explore the correlation between the discourse structure of a spoken monologue and its prosody by predicting discourse relations from different prosodic attributes. For this purpose, a corpus of semi-spontaneous monologues in English has been automatically annotated according to the Rhetorical Structure Theory, which models coherence in text via rhetorical relations. From corre...

This paper introduces the first Basque discourse TreeBank annotated with rhetorical relations following Rhetorical Structure Theory. We report the main features of the corpus, such as the annotation criteria, inter-annotator agreement and harmonization procedure. We describe an online search system to check the annotation of discourse relations.

Most text displays an internal coherence structure, which can be analyzed as a tree structure of relations that hold between short segments of text. We present a machine-learning governed approach to such an analysis in the framework of Rhetorical Structure Theory. Our rhetorical analyzer observes a variety of textual properties, such as cue phrases, part-of-speech information, rhetorical conte...