tailieunhanh - Báo cáo khoa học: "Meaningful Conversation with a Mobile Robot"

We describe an implementation integrating a spoken dialogue system with a mobile robot, which the user can direct to specific locations, ask for information about its status, and supply information about its environment. The robot uses an internal map for navigation, and communicates its current orientation and accessible locations to the dialogue system using a topological map as interface. processing, language modelling, language understanding and dialogue management have been implemented. Speech Recognition Nuance's speaker-independent speech recognition system (www nuance . . | Meaningful Conversation with a Mobile Robot Johan Bos Ewan Klein Tetsushi Oka ICCS School of Informatics University of Edinburgh 2 Buccleuch Place Edinburgh EH8 9LW Scotland United Kingdom jbos ewan okat @ Abstract We describe an implementation integrating a spoken dialogue system with a mobile robot which the user can direct to specific locations ask for information about its status and supply information about its environment. The robot uses an internal map for navigation and communicates its current orientation and accessible locations to the dialogue system using a topological map as interface. 1 Introduction Most research on spoken dialogue has focused on humans talking to virtual agents often only reached at the end of a telephone line. Interesting challenges and opportunities arise when the interlocutor is a physically embodied mobile agent for example a robot. When we enter into dialogue with a robot we can talk about the physical environment that we share with the robot and we get a palpable indicator of dialogue success when an utterance such as go to the corridor produces the desired effect. In short spoken dialogue research with mobile robots opens up a new vista for human-computer interaction design which goes beyond the current preoccupation with visual interfaces. In this paper we give a short overview of the land of dialogue that can be held with Godot our robot together with the architecture and technologies that we have implemented. 2 The Spoken Dialogue System The spoken dialogue system allows the user to move Godot by giving it commands to ask about its current location or to provide it with new information. This section explains how speech processing language modelling language understanding and dialogue management have been implemented. Speech Recognition Nuance s speaker-independent speech recognition system allows language models to be specified using Speech Grammar rules. Rather than writing these directly we