We introduce a new intelligent user interface (IUI) and, also, a new methodology to identify the fatigue state for healthy subjects. The fatigue state is determined by means of a new type of input IUI, named Virtual Joystick. The main goal is to prove the ability of the new IUI system to identify the user’s state. We describe the method used in data collecting, the method used to highlight the existence of different physiological and psychic fatigue states reflected by the tremor signal, the classifier system and, finally, the performances we obtained. Categories and Subject Descriptors H.5.2 [Information Interfaces and Presentation]: User Interfaces – user-centered design, input devices and strategies, theory and methods General Terms Algorithms, Measurement, Design, Experimentation, Human Factors, Theory. Keywords Multimodal interface, state recognition, virtual reality, support vector machine.
Dan Marius Dobrea, Horia-Nicolai L. Teodorescu