Study On Mobile Spatial Information Service Based On Speech Interaction

Location-based service has been conducted in many fields, which can make anyone can access location information anywhere, by any devices, in any time. Mobile devices will be the leading computing platform in wireless internet pattern to access and manage related information or data. Contrasted with the growing up researches in the field of the LBS platform and architectures, the traditional GUI pattern in the field of human-computer interaction, has been challenged by a dozens of difficulties. Most of people have been accustomed to input by pen or keypad, which has decreased popularization of mobile LBS because of its 1 imited screen size.The human being can communicate by speech, gestures, haptic and vision, among of which the most harmonic communication style is by speech. There are too many mobile devices and various users to unify user interaction pattern which debase the effects. In order to improve the applicability of user interface, a speech-driven system is developed to make human-computer interaction expediently.This paper described the details of multimodal interaction in the field of mobile LBS applications. The main work of the dissertation concentrates on the following parts:Provided the goals of this paper and its background; analyzed related research works on this field in the world. The primary research productions have been showed successfully in CHITEC 2004, Beijing.Introduced most of related research fields such as ASR (Automatic Speech Recognition), NLP (Nature Language Process) and HCI (Human-Computer Interaction), and focused on the analysis of the architecture and framework of multimodal interaction formulated by W3C.Analyzed dialog management theory and designed DM module.According to the multimodal interaction application in the field of mobile LBS, analyzed multimodal model and potential difficulties. Provide a semantic parse of spatial information in the field of public traffic.Designed and implemented a speech-driven LBS application including system architecture, multimodal user interface, and system interface definition, application framework.