Research Of Feedback Acquisition And Analysis In Presentation Based On Anoto Technology

Nowadays, using electronic slides is the most popular way in education and information exchange fields. But traditional presentation using slides has some insufficient about both sides of publisher and audience, limited by slides composition and presentation style. This situation reduces effectiveness of presentation for transporting the idea of publisher to audience.Based on analyzing the existing issues in traditional presentation, a new implicit feedback acquisition in presentation using digital pen is presented. Then, by illustrating the basic structure of the algorithm, the corresponding from memos to background knowledge using"rainfall"algorithm, and the corresponding from presentation slides to background knowledge using Viterbi algorithm is determined. Finally, the research realized the connection between memos and presentation slides, and interest of audience, goal of the research, is also achieved.After analyzing and testing the result, the implicit feedback acquisition is feasible. And every functional module and performance has achieved the expected goal.