Exploiting listener gaze to improve situated communication in dynamic virtual environments

Konstantina Garoufi, Maria Staudte, Alexander Koller, and Matthew Crocker

Cognitive Science, 2015.

Beyond the observation that both speakers and listeners rapidly inspect the visual targets of referring expressions, it has been argued that such gaze may constitute part of the communicative signal. In this paper, we investigate whether a speaker may, in principle, exploit listener gaze to improve communicative success. In the context of a virtual environment where listeners follow computer-generated instructions, we provide two kinds of support for this claim. Firstly, we show that listener gaze provides a reliable real-time index of understanding even in dynamic and complex environments, and on a per-utterance basis. Secondly, we show that a language generation system that uses listener gaze to provide rapid feedback improves overall task performance in comparison with two systems that do not use gaze. Beyond demonstrating the utility of listener gaze in situated communication, our findings open the door to new methods for developing and evaluating multi-modal models of situated interaction.

Note: Accepted, to appear in 2015.

BibTeX Entry
@Article{cogsci-15,
	author = {Konstantina Garoufi and Maria Staudte and Alexander
		Koller and Matthew Crocker},
	title = {Exploiting listener gaze to improve situated communication in dynamic virtual environments},
	journal = {Cognitive Science},
	year = 2015
}

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