Table 9 The encoding methods of input vectors in the fifteen selected SVMs.
No. | Encoding methods of input vectors |
|---|---|
1 | 1-gram with 2 partitioned parts |
2 | 1-gram with 3 partitioned parts |
3 | 1-gram with 4 partitioned parts |
4 | 1-gram with 4 partitioned parts (apply feature selection to No. 3) |
5 | 1-gram with 6 partitioned parts |
6 | 2-gram without any gaps |
7 | 2-gram without any gaps (apply feature selection to No. 6) |
8 | 2-gram with one gap |
9 | 3-gram with 6 merged groups |
10 | 3-gram with 7 merged groups |
11 | 3-gram with 8 merged groups |
12 | 4-gram with 4 merged groups |
13 | 4-gram with 4 merged groups |
14 | 4-gram with 4 merged groups |
15 | 4-gram with 4 merged groups (apply feature selection to No. 14) |