Identification of Tilletia foetida, Ustilago tritici, and Urocystis tritici Based on Near-Infrared Spectroscopy
Table 2
Number of near-infrared spectra of each kind of pathogen in the training and testing sets for each data subset under different modeling ratios when Data treatment method 2 was used.
Modeling ratio of training set to testing set
Data subset
Training set
Testing set
Tilletia foetida
Ustilago tritici
Urocystis tritici
Total number of samples
Tilletia foetida
Ustilago tritici
Urocystis tritici
Total number of samples
3 : 1
1
80
29
22
131
27
10
8
45
3 : 1
2
80
29
22
131
27
10
8
45
3 : 1
3
80
29
22
131
27
10
8
45
3 : 1
4
80
29
22
131
27
10
8
45
3 : 1
5
80
29
22
131
27
10
8
45
3 : 1
6
80
29
22
131
27
10
8
45
3 : 1
7
80
29
22
131
27
10
8
45
3 : 1
8
80
29
22
131
27
10
8
45
3 : 1
9
80
29
22
131
27
10
8
45
3 : 1
10
81
28
22
131
27
10
8
45
4 : 1
1
85
31
24
140
22
8
6
36
4 : 1
2
85
31
24
140
22
8
6
36
4 : 1
3
85
31
24
140
22
8
6
36
4 : 1
4
85
31
24
140
22
8
6
36
4 : 1
5
85
31
24
140
22
8
6
36
4 : 1
6
85
31
24
140
22
8
6
36
4 : 1
7
85
31
24
140
22
8
6
36
4 : 1
8
85
31
24
140
22
8
6
36
4 : 1
9
85
31
24
140
22
8
6
36
4 : 1
10
86
30
24
140
22
8
6
36
5 : 1
1
89
32
25
146
18
7
5
30
5 : 1
2
89
32
25
146
18
7
5
30
5 : 1
3
89
32
25
146
18
7
5
30
5 : 1
4
89
32
25
146
18
7
5
30
5 : 1
5
89
32
25
146
18
7
5
30
5 : 1
6
89
32
25
146
18
7
5
30
5 : 1
7
89
32
25
146
18
7
5
30
5 : 1
8
89
32
25
146
18
7
5
30
5 : 1
9
89
32
25
146
18
7
5
30
5 : 1
10
90
31
25
146
18
7
5
30
Note. There were 1490 near-infrared spectra including 1071, 389, and 30 spectra of Tilletia foetida, Ustilago tritici, and Urocystis tritici, respectively. There were 10 data subsets, and each data subset was composed of 176 spectra.
