Fig. 4From: Mental status assessment of disaster relief personnel by vocal affect display based on voice emotion recognitionROC curve of VAD-R index as a binary classifier. This curve shows performance of VAD-R index when the index is used to distinguish whether the sample is based on long-stay subjects or on short-stay subjects. Numbers on the trace are the threshold values of VAD-R to discriminate sessions by long-stay subjectsBack to article page