Abstract
The student evaluation system of teaching would be fruitful when the result caused enhancement of education. We developed the effective feedback system of the student evaluation result to the faculties. It indicates the information for further improvement of their teaching by using data and text mining such as Basic Statistics, Classification and Regression Trees for student satisfaction, and Association Rules for their evaluations. The opinion survey conducted in the faculties who used the effective feedback system showed the followings: (1) generally speaking, the users answered the system is useful for class improvement. (2) The function employing the association rule for free writing was considered an effective tool for more improvement of education, but the binary tree analysis, on the other hand, did not had the high appraisal. (3) Because the evaluation was relatively low in the questions of easy-to-read, easy-to-understand, etc., it is necessary to modify the interface.
