一个PI-双-STGCN故障诊断模型基于SHAP-LLM联合解释框架
Zheng Zhao1,2, Shuxia Ye1,2, Liang Qi1,2
1School of Automation, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
Sensors (Basel, Switzerland)
|January 28, 2026
概括
本研究介绍了一种PI-Dual-STGCN模型与SHAP-LLM框架用于透明的工业故障诊断. 这种新的方法实现了99.22%的准确性,并使用可解释AI和检索增强生成提高了可解释性.
科学领域:
- * 人工智能 * 人工智能
- * 机器学习 * 机器学习
- * 工业故障诊断 产业故障诊断
背景情况:
- * 深度学习模型在故障诊断中往往缺乏透明度和可解释性.
- * 现有的方法难以对诊断结果提供明确的解释.
- *工业应用需要可验证和可理解的决策支持系统.
研究的目的:
- * 为工业应用开发一个透明和可解释的故障诊断模型.
- * 提高深度学习诊断过程的可解释性.
- *利用大型语言模型 (LLM) 来提供可验证的决策支持,而无需直接诊断.
主要方法:
- * 提出了一种包含物理约束的PI-Dual-STGCN (物理信息双图空间时间图卷积网络) 模型.
- * 构建了一个双图架构,结合物理拓和信号相似度图.
- * 开发了一个SHAP-LLM (SHapley增量扩展-大语言模型) 联合解释框架,使用可解释AI (XAI) 和检索增强生成 (RAG).
主要成果:
- *PI-双-STGCN模型实现了99.22%的诊断准确性.
- * SHAP-LLM框架生成了视觉解释和分层知识库.
- *使用LLM来推理基于事实的文本信息 (绩效指标,SHAP结果),避免直接诊断和幻觉.
结论:
- * 结合PI-Dual-STGCN和SHAP-LLM的方法显著提高了诊断的准确性和透明度.
- *XAI提供模型决策逻辑的视觉和定量解释.
- * 这种方法提供可验证的智能决策支持,用于工业故障诊断,通过接地LLM推理.
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