A study on the predicate prediction using symbols in augmentative and alternative communication system

Abstract

This study generally is purposed to develop a mobile augmentative and alternative communication system (hereinafter referred to as "a mobile AAC system"). Also the device is aimed as a mobile AAC system for HCI, allowing a handicapped person to make a general communication with others in a free and convenient manner. This study specifically presents a method of predicting predictions, which contributes to reducing the size of the mobile system. This method includes selecting vocabulary and classifying it by domains so as to meet the characteristics of the mobile AAC communication, using a noun thesaurus for semantic analysis, and building a sub-category dictionary. Predicting predicates by selecting symbols in accordance with this method is tested and the utility thereof is confirmed. © Springer-Verlag Berlin Heidelberg 2003.