用可解释模型提升智能温室控管透明度,让机器决策看得懂。
Explainable AI for Smart Greenhouse Control: Interpretability of Temporal Fusion Transformer in the Internet of Robotic Things
- 采用TFT时序模型自动调节温室设备
- 模型测试准确率达95%,支持实时决策解释
- 适合关注农业自动化可信性的研究与从业者
物联网机器人技术(IoRT)在智能温室中的应用推动了精准农业的发展,实现了环境的高效自主控制。然而,现有时间序列预测模型多为黑箱,缺乏可解释性,难以满足智慧农业中对信任、透明和合规性的要求。本研究利用时序融合变换器(Temporal Fusion Transformer, TFT)模型实现温室设备的自动化调控。通过模型内生解释、局部可解释模型无关方法(LIME)和SHAP值分析,揭示温度、湿度、二氧化碳浓度、光照及外部气候等传感器数据对执行器决策的影响。训练后的TFT模型在类不平衡数据集上达到95%的测试准确率,展示了各传感器对实时温室调控的不同贡献,增强了决策透明度,支持动态优化以提高作物产量与资源效率。
原文摘要 · Abstract (English)
The integration of the Internet of Robotic Things (IoRT) in smart greenhouses has revolutionised precision agriculture by enabling efficient and autonomous environmental control. However, existing time series forecasting models in such setups often operate as black boxes, lacking mechanisms for explainable decision-making, which is a critical limitation when trust, transparency, and regulatory compliance are paramount in smart farming practices. This study leverages the Temporal Fusion Transformer (TFT) model to automate actuator settings for optimal greenhouse management. To enhance interpretability and trust in the model decision-making process, both local and global explanation techniques were employed using model-inherent interpretation, local interpretable model-agnostic explanations (LIME), and SHapley additive explanations (SHAP). These explainability methods provide information on how different sensor readings, such as temperature, humidity, CO2 levels, light, and outer climate, contribute to actuator control decisions in an automated greenhouse. The trained TFT model achieved a test accuracy of 95% on a class-imbalanced dataset for actuator control settings in an automated greenhouse environment. The results demonstrate the varying influence of each sensor on real-time greenhouse adjustments, ensuring transparency and enabling adaptive fine-tuning for improved crop yield and resource efficiency.
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