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<p>To address the economic losses caused by plant diseases in durian farming, this study presents an optimized deep learning model that diagnoses diseases from leaf images with high accuracy. The model’s performance is maximized through Bayesian optimization and hyperparameter tuning, while its reliability is maximized through layered five-fold cross-validation. Training the convolutional neural network model on 2595 leaf images displaying six different states (five diseased and one healthy) resulted in an average test accuracy of 91.98%. This high, consistent success rate demonstrates the model’s generalizability to different datasets without overfitting. While the ‘Healthy’ and ‘<i>Algal</i>’ classes were successfully detected with high F1-scores, there are difficulties distinguishing between the ‘<i>Blight</i>’ and ‘<i>Colletotrichum</i>’ classes due to visual similarities. This study establishes a&#xa0;new reference point for durian disease classification and makes a&#xa0;significant contribution to the development of reliable artificial intelligence-based diagnostic tools for precision agriculture.</p>

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High-Accuracy Identification of Durian Leaf Diseases: A Convolutional Neural Network Approach Validated with K-Fold Cross-Validation and Bayesian Optimization

  • 期刊论文

  • 发表日期：

    2025年11月18日

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  • İsmet Söylemez,
  • Mehmet Eren Nalici,
  • Ramazan Ünlü

摘要

To address the economic losses caused by plant diseases in durian farming, this study presents an optimized deep learning model that diagnoses diseases from leaf images with high accuracy. The model’s performance is maximized through Bayesian optimization and hyperparameter tuning, while its reliability is maximized through layered five-fold cross-validation. Training the convolutional neural network model on 2595 leaf images displaying six different states (five diseased and one healthy) resulted in an average test accuracy of 91.98%. This high, consistent success rate demonstrates the model’s generalizability to different datasets without overfitting. While the ‘Healthy’ and ‘Algal’ classes were successfully detected with high F1-scores, there are difficulties distinguishing between the ‘Blight’ and ‘Colletotrichum’ classes due to visual similarities. This study establishes a new reference point for durian disease classification and makes a significant contribution to the development of reliable artificial intelligence-based diagnostic tools for precision agriculture.