A User-Controlled VoiceXML Application Based on Dynamic Voice Anchor and Node

VoiceXML is new markup language which is designed for web resource navigation via voice based on XML. An application using VoiceXML is classified into computer-directed and mixed-initiative form dialog structure. Such dialog structures can’t construct services which provide free navigation of web resource by user because a scenario is decided by application developer. In this paper, we propose VoiceXML application structure using user-controlled form dialog system which decides a service scenario according to user’s intention. The proposed application automatically detects recognition candidates from requested information by user, and then system uses recognition candidate as voice-anchor. Also, system connects each voice-anchor with new voice-node. An example of proposed system, we implement news service with IT term dictionary, and we confirm detection and registration of voice-anchor and make an estimate of hit rate about measurement of a successive offer from information according to user’s intention and response speed. As the experiment result, we confirmed possibility which is more freely navigation of web resource than existing VoiceXML form dialog systems.