Generating Dialogues for Virtual Agents Using Nested Textual Coherence Relations

Hernault, Hugo; Piwek, Paul; Prendinger, Helmut and Ishizuka, Mitsuru (2008). Generating Dialogues for Virtual Agents Using Nested Textual Coherence Relations. In: Intelligent Virtual Agents. IVA 2008. Lecture Notes in Computer Science, vol 5208, 1-3 Sep 2008, Tokyo, Springer, pp. 139–145.

DOI: https://doi.org/10.1007/978-3-540-85483-8_14

Abstract

This paper describes recent advances on the Text2Dialogue system we are currently developing. Our system enables automatic transformation of monological text into a dialogue. The dialogue is then 'acted out' by virtual agents, using synthetic speech and gestures. In this paper, we focus on the monologue-to-dialogue transformation, and describe how it uses textual coherence relations to map text segments to query–answer pairs between an expert and a layman agent. By creating mapping rules for a few well-selected relations, we can produce coherent dialogues with proper assignment of turns for the speakers in a majority of cases.

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