Modelling and evaluation of lexical and syntactic alignment with a priming-based microplanner

  • Authors:
  • Hendrik Buschmeier;Kirsten Bergmann;Stefan Kopp

  • Affiliations:
  • CITEC, Bielefeld University, Bielefeld, Germany;CITEC, Bielefeld University, Bielefeld, Germany;CITEC, Bielefeld University, Bielefeld, Germany

  • Venue:
  • Empirical methods in natural language generation
  • Year:
  • 2010

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Abstract

Alignment of interlocutors is a well known psycholinguistic phenomenon of great relevance for dialogue systems in general and natural language generation in particular. In this chapter, we present the alignment-capable microplanner SPUDprime. Using a priming-based model of interactive alignment, it is flexible enough to model the alignment behaviour of human speakers to a high degree. We demonstrate that SPUDprime can account for lexical as well as syntactic alignment and present an evaluation on corpora of task-oriented dialogue that were collected in two experiments designed to investigate the alignment behaviour of humans in a controlled fashion. This will allow for further investigation of which parameters are important to model alignment and how the human-computer interaction changes when the computer aligns to its users.