A Novel Client-Server Sketch Recognition Approach for Advanced Mobile Services

Multimodal interfaces can be profitably used to support the more and more complex mobile applications and services which support human activities in everyday life. In particular, sketch-based interfaces offer users an effortless and powerful communication way to represent concepts and/or commands on different mobile devices. Developing a sketchbased interface for a specific application or service is a time-consuming task that requires the re-engineering and/or the re-designing of the whole recognizer framework. This paper describes a novel client-server framework, for mobile devices, which allows users to define each kind of sketch-based interface, simply by using freehand drawing. Both interface definition and its recognition process are performed using our Sketch Modeling Language (SketchML).