arXiv:2504.02834eess.SPcs.LG2025-04被引 3

用双注意力模型预测土壤电阻率,精准且可解释。

Explainable Dual-Attention Tabular Transformer for Soil Electrical Resistivity Prediction: A Decision Support Framework for High-Voltage Substation Construction

  • 双注意力机制同时关注特征与样本批次,提升预测精度。
  • 误差仅0.63%,优于现有表格数据模型。
  • 揭示粉粒含量和干密度最关键,适合电力基建工程师使用。

本研究提出一种新型双注意力变换器架构,用于预测高电压变电站建设中关键的土壤电气电阻率。模型在特征和数据批次两个维度上引入注意力机制,并通过特征嵌入层将输入映射至高维空间。采用粒子群优化算法系统调优嵌入维度、注意力头数及网络结构。所提方法在表格式数据上取得优异性能(平均绝对百分比误差:0.63%),显著优于当前先进模型。关键的是,模型结合SHapley Additive exPlanations(SHAP)分析保持可解释性,揭示细颗粒含量和干密度对土壤电阻率影响最大。我们开发了基于Web的应用系统,为泰国国家电力局提供跨地质与电气工程需求的决策支持框架,兼顾结构稳定与电气安全,提升高压基础设施建设的效率与合规性。

原文摘要 · Abstract (English)

This research introduces a novel dual-attention transformer architecture for predicting soil electrical resistivity, a critical parameter for high-voltage substation construction. Our model employs attention mechanisms operating across both features and data batches, enhanced by feature embedding layers that project inputs into higher-dimensional spaces. We implements Particle Swarm Optimization for hyperparameter tuning, systematically optimizing embedding dimensions, attention heads, and neural network architecture. The proposed architecture achieves superior predictive performance (Mean Absolute Percentage Error: 0.63%) compared to recent state of the art models for tabular data. Crucially, our model maintains explainability through SHapley Additive exPlanations value analysis, revealing that fine particle content and dry density are the most influential parameters affecting soil resistivity. We developes a web-based application implementing this model to provide engineers with an accessible decision support framework that bridges geotechnical and electrical engineering requirements for the Electricity Generating Authority of Thailand. This integrated approach satisfies both structural stability and electrical safety standards, improving construction efficiency and safety compliance in high-voltage infrastructure implementation.

土壤电阻率注意力机制可解释性电力基建

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