Alarm algorithms for displacement detection methods are one of the key components of an automatic displacement monitoring system used for monitoring any large structure (such as dams, bridges etc.). Methods such as Shewhart algorithm, moving average algorithm weighted moving average algorithm (WMA), exponentially weighted moving average algorithm (EWMA), cumulative sum algorithm (CUSUM) are use...

Editor’s Note: This article and the first two accompanying discussions were presented orally at the Technomeirics session of the 33rd Annual Fall Technical Conference in Houston, Texas, October 25-27. 1989. The conference was cosponsored by the Chemical and Process Industries and the Statistics Divisions of the American Society for Quality Control and the Section on Physical and Engineering Sci...

During the last two decades, many new methods have appeared in statistical process monitoring with synthetic-type control charts being a prominent constituent. These became popular due to their simplicity and proclaimed excellent change point detection performance. Synthetic are nothing more than application of well-known long established runs rules. We show that better performance can be obtai...

Industrial Control System (ICS) can suffer of cyber-physical attacks resulting in accident, damage, or financial loss. The be detected both physical space cyberspace the ICS. detection based on models system. To model system this study uses a data-driven modeling approach as an alternative analytic one. This using dynamic mode decomposition method with control (DMDc) assuming full state measure...

In many practical situations, multiple variables often need to be monitored simultaneously to ensure the process is in control. In this article, we develop a feasible multivariate monitoring procedure based on the general Multivariate Exponentially Weighted Moving Average (MEWMA) to monitor the multivariate count data. The multivariate count data is modeled using Poisson-Lognormal distribution ...

Abstract:
 In many real-world applications, the data to be used in a control charting method are not crisp since they approximated due environmental uncertainties, these situations, fuzzy numbers and linguistic variables grab such uncertainties. That is why use of chart, which used, justified. As an exponentially weighted moving average (EWMA) scheme usually detect small shifts, this paper ...