一个机器学习辅助的截断自适应EWMA图表,用于稳健的过程监控
Abdullah A Zaagan1, Hassan M Aljohani2, Hamad Zogan3
1Department of Mathematics, Faculty of Science, Jazan University, P.O. Box 2097, Jazan, 45142, Kingdom of Saudi Arabia.
一个新的混合机器学习辅助的截断自适应EWMA (ML-TAE) 图表通过减少错误报警和检测比传统方法更快的转移来改善过程控制. 这种机器学习方法提高了受污染数据的平均运行长度 (ARL) 的稳定性.
科学领域:
- 工业工程 工业工程 工业工程
- 机器学习 机器学习
- 统计过程控制 统计过程控制
背景情况:
- 像适应性EWMA (AE) 和截断的适应性EWMA (TAE) 这样的经典控制图假设正常,并且可能对真正的工艺变化不敏感.
- 截断方法可能无法充分检测异常或受污染数据中的真实变化.
研究的目的:
- 引入和评估一个新的混合机器学习辅助的截断自适应EWMA (ML-TAE) 控制图.
- 在各种污染和转移场景下,评估ML-TAE图表与经典方法的性能.
主要方法:
- 开发了ML-TAE图表,将机器学习模型的异常分数纳入适应性体重观测.
- 使用蒙特卡洛模拟方法来评估图表在不同污染水平和工艺转移中的性能.
- 通过涉及受污染的工艺环境的真实实例研究进行验证.
主要成果:
- ML-TAE图表显示了在保持平均运行长度 (ARL) 稳定性方面的卓越性能.
- 与AE和TAE图表相比,它显著降低了虚假警报率.
- 在ML-TAE图表有效地检测中度工艺转移比经典模型更快.
结论:
- 拟议的ML-TAE图表为工艺监控提供了更高的稳定性和灵敏性,特别是在受污染的环境中.
- 机器学习集成提供了自适应权重,改善了控制图表的性能.
- ML-TAE图表是现实世界统计过程控制应用的实用和有效工具.
更多相关视频
06:45Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
Published on: October 28, 2022
11:04Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism
Published on: September 1, 2014
相关概念视频
Run Charts
The X̄ Chart
The x̄ chart, often known as the individual control chart, is a crucial tool in statistical process control. It is designed to monitor process behavior and performance over time and is widely used in various industries to ensure that processes are operating at their optimum capacity and within specified limits.
A x̄ chart is constructed by plotting individual measurements of a quality...
Interpreting Run Charts
Interpreting X̄ Charts
An x̄ chart plots the values of individual measurements over time against control limits calculated from historical data. The central line...
The R Chart
R charts are pivotal for pinpointing shifts in process variability. Stability is indicated when all data points remain within the defined upper and lower...
Interpreting R Charts
An R chart plots the range of subsets of measurements collected from a process. Each point on the chart represents the range—defined as the difference between the maximum and minimum...
