THEORETICAL APPROACHES FOR CENTER-PERIPHERY RELATIONS: INTERDISCIPLINARY DISCOURSE

Discourse Analysis and Constructionist Approaches : Theoretical

The Center and Periphery of Composite Graphs

The center (periphery) of a graph is the set of vertices with minimum (maximum) eccentricity. In this paper, the structure of centers and peripheries of some classes of composite graphs are determined. The relations between eccentricity, radius and diameter of such composite graphs are also investigated. As an application we determine the center and periphery of some chemical graphs such as nan...

Discourse Relations Versus Discourse Marker Relations

While it seems intuitively obvious tha t many discourse markers (DMs) are able to express discourse relat ions (DRs) which ex i s t independently, the specific contr ibut ion of DMs if any is not clear. In this paper , we investigate the s tatus of some consequence DMs in French. We observe tha t it is difficult to cons t ruc t a clear and simple definition based on DRs for these DMs. Next , we...

Discourse Relations, Discourse Structure, Discourse Semantics

It is generally accepted that a discourse connective expresses a semantic and/or pragmatic relation between its matrix sentence or clause and something in the previous discourse. Usually the sense of this relation is expressed as a label, often within a hierarchy of sense labels. But the meaning of these labels may vary from system to system, and the same connective may be assigned different la...

Modelling Discourse Relations for Arabic

We present the first algorithms to automatically identify explicit discourse connectives and the relations they signal for Arabic text. First we show that, for Arabic news, most adjacent sentences are connected via explicit connectives in contrast to English, making the treatment of explicit discourse connectives for Arabic highly important. We also show that explicit Arabic discourse connectiv...