Near Infrared Spectroscopy Based on Supervised Pattern Recognition Methods for Rapid Identification of Adulterated Edible Gelatin

Table 4

Predicting results of BPNN model in the validation set.

No.	Real class	Predicted class	Result	No.	Actual species	Predicted class	Result	No.	Real class	Predicted class	Result
1	0 0 0 1 0 0	4	Correct	14	0 0 0 0 0 1	6	Correct	27	1 0 0 0 0 0	1	Correct
2	0 1 0 0 0 0	2	Correct	15	0 0 1 0 0 0	3	Correct	28	0 0 0 0 1 0	5	Correct
3	0 0 1 0 0 0	3	Correct	16	1 0 0 0 0 0	1	Correct	29	0 0 0 1 0 0	4	Correct
4	0 1 0 0 0 0	2	Correct	17	0 0 0 1 0 0	4	Correct	30	0 1 0 0 0 0	2	Correct
5	0 0 0 0 0 1	6	Correct	18	1 0 0 0 0 0	1	Correct	31	0 0 0 0 1 0	5	Correct
6	0 0 0 1 0 0	4	Correct	19	0 1 0 0 0 0	2	Correct	32	0 1 0 0 0 0	2	Correct
7	0 0 0 0 1 0	5	Correct	20	0 0 0 0 1 0	5	Correct	33	1 0 0 0 0 0	1	Correct
8	0 0 1 0 0 0	3	Correct	21	0 0 0 1 0 0	4	Correct	34	1 0 0 0 0 0	1	Correct
9	0 0 0 0 1 0	5	Correct	22	0 1 0 0 0 0	2	Correct	35	0 0 0 1 0 0	4	Correct
10	0 1 0 0 0 0	2	Correct	23	0 0 0 1 0 0	3	Error	36	1 0 0 0 0 0	1	Correct
11	0 0 1 0 0 0	3	Correct	24	1 0 0 0 0 0	1	Correct	37	0 0 1 0 0 0	3	Correct
12	0 0 0 0 1 0	5	Correct	25	0 0 0 0 0 1	6	Correct	38	1 0 0 0 0 0	1	Correct
13	1 0 0 0 0 0	1	Correct	26	1 0 0 0 0 0	1	Correct	39	1 0 0 0 0 0	1	Correct

Note. [1 0 0 0 0 0] represents class 1, i.e., pure edible gelatin ; [0 1 0 0 0 0] represents class 2, i.e., 4 : 1 adulterated gelatin ; [0 0 1 0 0 0] represents class 3, i.e., 3 : 2 adulterated gelatin ; [0 0 0 1 0 0] represents class 4, i.e., 2 : 3 adulterated gelatin ; [0 0 0 0 1 0] represents class 5, i.e., 1 : 4 adulterated gelatin; [0 0 0 0 0 1] represents class 6, i.e., pure industrial gelatin.