抄録
Service robots will be used in practical to support human activities of daily life. When a human verbally orders a task to a robot, the order tends to be an imperfect sentence because of the dependency of a human utterance on the context and the knowledge obtained beforehand. The imperfect sentence means the one which does not include all necessary information to persue the task. This study investigates a verbal interaction model to obtain lacked information in an order from users by making a suitable query. This study develops a prototype interaction system and investigates the applicability of the system by several verbal interaction examples.
