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基于可解释性的特征选择和性能预测,用于非侵入性负载监控
Rachel Stephen Mollel1, Lina Stankovic1, Vladimir Stankovic1
1Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow G1 1XW, UK.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
这项研究通过使用可解释的决策树和可解释性工具来增强非侵入性负载监控 (NILM). 这种方法提高了设备分类的准确性,并减少了智能电表能源数据的预测时间.
科学领域:
- 能源系统 能源系统
- 人工智能的人工智能
- 机器学习 机器学习
背景情况:
- 智能计量可实现高分辨率的能源数据,这对于准确的计费和需求响应至关重要.
- 非侵入性负载监控 (NILM) 使用这些数据来识别单个设备的能源消耗.
- 现有的NILM模型往往缺乏可靠性和可解释性,阻碍了用户采用和模型改进.
研究的目的:
- 通过使用可解释的机器学习模型,开发一种可靠和可解释的NILM方法.
- 通过利用设备分类的特征重要性来提高NILM模型性能.
- 在未见的数据上预测模型性能,并尽量减少测试时间.
主要方法:
- 使用基于自然可解释的决策树 (DT) 的方法进行多类NILM分类.
- 采用可解释性工具来确定每个设备的本地和全球特征的重要性.
- 通过可解释性设计了一个特征选择方法,以优化对未见数据的预测.
主要成果:
- 基于可解释性的特征选择使烤面包机的分类从65%提高到80%.
- 优化的分类器配置 (例如,水,微波炉,洗碗机的三分类器) 显著提高了性能.
- 洗碗机的分类从72%提高到94%,洗衣机的分类从56%提高到80%.
结论:
- 可解释的决策树和可解释性工具提高了NILM的可信度和性能.
- 基于可解释性的特征选择有效地提高了设备分类的准确性.
- 量身定制的分类器配置可以提高特定设备组的NILM性能.
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