未来还有进一步提升的空间，测试结果只能说明部分问题
1.原始结果
Correctly Classified Instances 762 76.2%
Incorrectly Classified Instances 238 23.8%
a b c d e f g h i j <-- classified as
80 0 4 1 0 1 5 1 2 6 | a = blues
0 97 2 0 0 1 0 0 0 0 | b = classical
6 0 73 2 0 1 2 2 1 13 | c = country
1 0 5 70 1 0 0 2 10 11 | d = disco
3 0 0 3 73 0 2 4 13 2 | e = hiphop
1 5 2 0 0 88 1 0 0 3 | f = jazz
2 0 3 1 0 0 82 0 0 12 | g = metal
7 0 5 5 5 1 1 68 1 7 | h = pop
5 0 4 5 10 1 0 2 70 3 | i = reggae
8 0 13 6 1 0 6 1 4 61 | j = rock
2.初步处理
Correctly Classified Instances 784 78.4%
Incorrectly Classified Instances 216 21.6%
a b c d e f g h i j <-- classified as
84 0 4 2 0 1 3 0 2 4 | a = bl
0 94 1 0 0 4 0 0 0 1 | b = cl
3 1 81 1 0 1 1 3 1 8 | c = co
3 0 2 73 2 1 1 5 7 6 | d = di
2 0 0 4 77 0 3 6 5 3 | e = hi
1 4 3 1 0 87 0 0 2 2 | f = ja
1 0 1 2 2 0 85 1 1 7 | g = me
3 1 4 1 2 1 0 76 4 8 | h = po
4 1 4 4 9 0 0 2 70 6 | i = re
4 1 10 7 4 2 8 2 5 57 | j = ro
3.进一步处理
Correctly Classified Instances 808 80.8%
Incorrectly Classified Instances 192 19.2%
a b c d e f g h i j <-- classified as
86 0 4 0 0 2 3 0 0 5 | a = bl
0 96 2 0 1 1 0 0 0 0 | b = cl
3 0 82 1 0 3 0 2 3 6 | c = co
5 1 2 67 3 0 1 8 4 9 | d = di
2 0 0 1 82 1 4 2 8 0 | e = hi
1 8 8 0 0 81 1 0 0 1 | f = ja
3 0 0 0 1 0 90 0 0 6 | g = me
0 1 2 1 2 1 0 86 3 4 | h = po
2 0 2 2 8 2 0 3 73 8 | i = re
5 0 8 11 1 2 4 1 3 65 | j = ro