Mark ter Maat

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This paper describes a substantial effort to build a real-time interactive multimodal dialogue system with a focus on emotional and nonverbal interaction capabilities. The work is motivated by the aim to provide technology with competences in perceiving and producing the emotional and nonverbal behaviors required to sustain a conversational dialogue. We(More)
Different turn-taking strategies of an agent influence the impression that people have of it. We recorded conversations of a human with an interviewing agent, controlled by a wizard and using a particular turn-taking strategy. A questionnaire with 27 semantic differential scales concerning personality, emotion, social skills and interviewing skills was used(More)
We describe our research on designing and implementing a Virtual Conductor. That is, a virtual human (embodied agent) that acts like a human conductor in its interaction with a real, human orchestra. We reported previously on a first version that used a digital musical score to lead an orchestra. This conductor was able to conduct the beat with a certain(More)
We look at how some basic choices in the management of turns influence the impression that people get from an agent. We look at scales concerning personality, emotion and interpersonal stance. We do this by a person perception study, or rather an agent perception study, using simulated conversations that systematically vary basic turn-taking strategies. We(More)
Sensitive artificial listeners (SAL) are virtual dialogue partners who, despite their very limited verbal understanding, intend to engage the user in a conversation by paying attention to the user's emotions and non-verbal expressions. The SAL characters have their own emotionally defined personality, and attempt to drag the user towards their dominant(More)
Different turn-taking strategies of an agent influence the impression that people have of it and the behaviors that they display in response. To study these influences, we carried out several studies. In the first study, subjects listened as bystanders to computer-generated, unintelligible conversations between two speakers. In the second study, subjects(More)
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The Virtual Conductor is an artificial conducting system that uses real-time audio analysis of music played by musicians and uses this analysis to animate a virtual human that acts as a conductor. The analysis detects the tempo and the dynamics of the music, compares the results with the score and the intentions of the conductor and modifies the conducting(More)