关键词: SVM分类, 眼动轨迹, 四方趣题, 眼动指标

Abstract: It is a hot topic in applied psychology that interpreting people’s thinking from eye tracks.In this paper，research material is 4*4 sudoku.The Tobii eye tracker records subjects’ eye tracks while solving 4*4 sudouk.And then this paper uses feature values，the weighted value of the composite indicators，such as the duration，regression time of each AOI，to train SVM classifier.The experiments of three different classification tasks show that the classification accuracy is very high，and the ability of generalization is strong.SVM can be used for the classification of eye tracks.So this paper can interpret different problem-solving strategies according to the results of classification of eye tracks.

Key words: Support Vector Machine（SVM） classification, eye track, 4*4 sudoku, eye parameter