Hybrid Analysis of Audience Gaze and Constitutive Features of Slides for Extracting the Defective Portions from Presentation Slides

The need for training students in presentation skills has been proposed. Skills in the creation, elaboration of slides are particularly important but it is actually difficult to train students in such skills. It is important for students to properly understand defective portions in slides so that they can polish the slides by themselves. However, it is difficult for novices to detect defective portions, it generally depends on individual work by experienced people such as professors. Such work imposes a huge burden on professors, prevents detailed guidance including the linkage of oral explanations, gestures, slide descriptions. This research was aimed at developing a mechanism for extracting the defective portions in slides, providing them to students on the basis of hybrid analysis of two promising sources: (1) constitutive features being inherent in the slide data, (2) audiences' visual tracking behaviors of slide content. This paper mainly describes methods of extracting candidates for problems from presentation slides that inhibit understanding by audiences on the basis of constitutive features of slides, audience gaze.