Discourse structure is concerned with how the parts of a text relate together to convey meaning. In task-oriented dialogues, such as those which occur in the domain of Vie-DU , a NL consulting system designed to provide information on the granting of subsidies for house improvements, the structure of discourse corresponds strongly with the goals and intentions of the agents involved in the inte...

writing projects are socially-situated identities. the rhetorically-loaded aspects of writing, like metadiscourse marking, are more prone to carry such identities. through analyzing metadiscourse strategies employment in persian and english (as the lingua franca of academic discourse community) research articles, this study makes an attempt to find out whether persian native writers take on the...

Introduction In this paper, we discuss how a discourse agent can manage multiple discourse goals using dynamic constraint optimization. We discuss turn-taking agents, which are agents that know how to take turns in dynamic, conversational settings. Conversation constrains an agent’s behaviour in a number of ways; for example, a conversational agent must act quickly to avoid long pauses, and it ...

This study examined the effect of the ZPD-based discourse scaffolding on EFL learners' co-construction of L2 metadiscourse performing collaborative writing tasks and explored the discourse scaffolding dynamics. The participants were 160 EFL students that were assigned to four different treatment conditions: (i) formal teaching, (ii) input enhancement, (iii) non-ZPD interaction, and (iv) ZPD-bas...

A well modeled discourse is the fundamental work of building a dialogue system within a problem domain. The detail of the modeling process could be different from domain to domain. Many researchers have identified different dimensions to model the discourse structures in their own domains. Nevertheless, like most of the software engineering issues, even though the detail process could be domain...

Humans and artificial agents need to be able to explain themselves to one another. They need to be able to present their perspectives and assess the views of others. This paper describes an approach to explanation aware reasoning, using underlying structures of natural discourse and argumentation theory. By positioning argumentation, explanation, and defeasibility concepts as first-class ontolo...

Using media discourse analysis for material published by the press on schistosomiasis in the city of Jaboticatubas, the possible determining factors of narrative and discursive constructions in the diffusion of information are discussed. It was observed that media discourse treats schistosomiasis in 1962 as something from the natural order. By 1997 and 1998, the media discourse strategies revea...