Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
385382 | Expert Systems with Applications | 2011 | 6 Pages |
Abstract
This article presents a control chart for time series data, based on the one-step-ahead forecast errors of the Holt–Winters forecasting method. We use robust techniques to prevent that outliers affect the estimation of the control limits of the chart. Moreover, robustness is important to maintain the reliability of the control chart after the occurrence of alarm observations. The properties of the new control chart are examined in a simulation study and on a real data example.
► A robust control chart, relying on a robust Holt–Winters algorithm, is proposed. ► The robust procedure remains powerful in presence of outliers in the training data. ► The chart displays the time series and monitors the residuals.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Artificial Intelligence
Authors
Christophe Croux, Sarah Gelper, Koen Mahieu,