FAN Meng-yi,GAO Gui-hu,CHEN Dong-ying,YU Mu-xin.Study on Wheat Protein Content Prediction Method Based on Symmetric Convolutional Network with Multi-feature Fusion[J].Journal of Instrumental Analysis,2025,44(10):2095-2101.
FAN Meng-yi,GAO Gui-hu,CHEN Dong-ying,YU Mu-xin.Study on Wheat Protein Content Prediction Method Based on Symmetric Convolutional Network with Multi-feature Fusion[J].Journal of Instrumental Analysis,2025,44(10):2095-2101. DOI: 10.12452/j.fxcsxb.250328240.
Study on Wheat Protein Content Prediction Method Based on Symmetric Convolutional Network with Multi-feature Fusion
Traditional methods are ineffective in feature extraction from wheat near infrared spectra due to small sample sizes and limited spectral information,while convolutional neural networks (CNN) often suffer from inefficiency,over-parameterization,and overfitting. To address these issues,this study proposes a symmetric convolutional network with multi-feature fusion (SCN-MF) for accurate and efficient wheat protein content prediction. First,a symmetric CNN is designed with a channel structure that increases and then decreases. This structure ensures prediction accuracy while reducing computational complexity. Second,a multi-feature fusion module is introduced. It employs a cross-attention mechanism to integrate original spectra with derivative spectra. This enhances key feature
representation and improves prediction accuracy. Experimental results show that SCN-MF achieves a
R
² of 0.946 1,a RPD of 4.305 7,and a RMSE of 0.404 3 on the testing set. Compared with the baseline CNN model,it significantly enhances prediction accuracy and computational efficiency. Additionally,SCN-MF outperforms five other methods on both training and testing sets,demonstrating superior stability and prediction ability. This study is suitable for NIR spectral modeling in small-sample and small-model scenarios. It provides new technical support for intelligent wheat protein content detection.
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