Sciweavers

Share
ICRA
2005
IEEE

Decision Networks for Repair Strategies in Speech-Based Interaction with Mobile Tour-Guide Robots

10 years 3 months ago
Decision Networks for Repair Strategies in Speech-Based Interaction with Mobile Tour-Guide Robots
– The main task of a voice-enabled tour-guide robot in mass exhibition setting is to engage visitors in dialogue and provide as much exhibit information as possible in a limited time. In managing such a dialogue, extracting the user (visitor) goal or intention at each dialogue state is the key issue. In mass exhibition conditions uncooperative visitors and speech recognition limitations in noisy acoustic conditions may jeopardize user goal identification. In this paper, we introduce the use of sequential dialogue repair techniques, exploiting the inherent multimodality of the tour-guide robot, in order to reduce the risk of the resulting communication failures. Bayesian networks fusing acoustic and non-acoustic modalities during user goal identification serve as input to graphical models known as decision networks. Decision networks allow the definition of dialogue repair sequences as actions, and provide a decision-theoretic utility-based strategy for selecting actions. The benefits...
Plamen J. Prodanov, Andrzej Drygajlo
Added 25 Jun 2010
Updated 25 Jun 2010
Type Conference
Year 2005
Where ICRA
Authors Plamen J. Prodanov, Andrzej Drygajlo
Comments (0)
books