Possible Lexical Indicators for Barge- In / Barge- Before in a multimodal Man- Machine- Communication

1 Abstract In the SmartKom project an intelligent computer- user interface which being deal with various kinds of oral or physical input is developed. The aim of SmartKom is to allow a natural form of communication within man- machine interaction. One problem with natural computer- user dialogues is how to handle turntaking and - holding, especially when the user' s intention is to stop the system output. The goal is to handle turntaking and - holding as in inter- human dialogues and to recognize if a system output is overlapped by another input of the user in order to react properly.