Analyzing lecturer’s speech and slide by estimated word difficulty

Abstract

As research goal of providing the difficulty level of the Japanese used in lectures from the viewpoint of foreign exchange students and lecturers who are not native speakers of Japanese, we propose a system for providing Japanese word difficulty used in speech and slides of lecturers in lectures. The grades of the old version of Japanese Language Proficiency Test are used to determine the Japanese word difficulty. In the case that the Japanese word difficulty is already determined by materials, that Japanese word difficulty is used, and in the case of words with an unknown word difficulty, estimates reached by use of a support vector machine are used to arrive at a word difficulty. This system provides three kind of information of lecture by word difficulty.