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. 2024 Feb 9;11:1325934. doi: 10.3389/fnut.2024.1325934

Table 3.

Results of the detection model for pathogenic bacteria contamination status on mutton established by spectral data after different preprocessing method.

Model Pretreatment method Accuracy
Training set Test set External validation set
1D-CNN None 100.00% 92.86% 97.62%
1D 99.98% 85.71% 95.24%
2D 100.00% 89.26% 95.24%
MC 97.96% 90.48% 95.24%
MSC 99.66% 86.90% 90.48%
PLS-DA None 92.18% 90.14% 89.29%
1D 89.12% 85.71% 83.33%
2D 92.85% 90.48% 89.29%
MC 86.73% 83.33% 79.76%
MSC 87.07% 85.37% 83.33%
SVM None 93.20% 86.39% 79.76%
1D 98.30% 88.10% 88.76%
2D 99.32% 91.67% 90.14%
MC 83.33% 77.38% 74.83%
MSC 96.94% 78.57% 80.95%