“…In Figure 4, four classes of 1v3, 1v5, 1v6, and 3v4 in the experiment are taken as examples to show the classification accuracy curve of the feature subset selected by the F-score-SVM, DFS-SVM, and FSJF-SVM methods 5,10,18,23,31,36,44,49,24,21,16,37,8,34,22,29,19,13,26,11,25,35,47,32,3,20,9,38,15,14,1,46,2,12,39,17,33,45,6,27,28 1.26293142 43 50, 5,10,18,23,31,36,44,49,24,21,16,37,8,34,...…”