Results 51 to 60 of about 420,626 (277)

Comparison of control charts for monitoring clinical performance using binary data. [PDF]

, 2017
BACKGROUND: Time series charts are increasingly used by clinical teams to monitor their performance, but statistical control charts are not widely used, partly due to uncertainty about which chart to use.
Cromwell, David A, Neuburger, Jenny, Sherlaw-Johnson, Chris, van der Meulen, Jan, Walker, Kate   +4 more
core   +1 more source

Multivariate control charts based on Bayesian state space models

, 2006
This paper develops a new multivariate control charting method for vector autocorrelated and serially correlated processes. The main idea is to propose a Bayesian multivariate local level model, which is a generalization of the Shewhart-Deming model for ...
Ameen, Ameen, Bersimis, Borror, Box, Brown, Chatfield, Cheng, Costa, de Magalhães, del Castillo, Deming, Durbin, Dyer, Goodwin, Gupta, Harris, Jiang, Kalgonda, Kourti, Liu, Lowry, Maravelakis, Mason, Montgomery, Montgomery, Noorossana, Pan, Pan, Salvador, Schmid, Schmid, Shiau, Sullivan, Surtihadi, Tagaras, Tagaras, Tracy, Triantafyllopoulos, Triantafyllopoulos, Triantafyllopoulos, Triantafyllopoulos, VanBrackle, Vargas, Vasilopoulos, Watkins, West, Ye, Yeh, Yeh   +49 more
core   +1 more source

Mixed Control Charts Using EWMA Statistics

IEEE Access, 2016
In this paper, two mixed control charts are designed for process monitoring when the quality characteristic of interest follows a normal distribution. The mixed control chart starts with monitoring the number of non-conforming items but switches to monitoring using exponentially weighted moving average (EWMA) statistic or hybrid EWMA statistic when the
Muhammad Aslam, Nasrullah Khan, Mansour Sattam Aldosari, Chi-Hyuck Jun   +3 more
openaire   +3 more sources

Guaranteed in‐control performance of the EWMA chart for monitoring the mean

Quality and Reliability Engineering International, 2019
Research on the performance evaluation and the design of the Phase II EWMA control chart for monitoring the mean, when parameters are estimated, have mainly focused on the marginal in‐control average run‐length (ARLIN).
M. Diko, S. Chakraborti, R. Does
semanticscholar   +1 more source

A Binary Control Chart to Detect Small Jumps [PDF]

, 2009
The classic N p chart gives a signal if the number of successes in a sequence of inde- pendent binary variables exceeds a control limit. Motivated by engineering applications in industrial image processing and, to some extent, financial statistics, we ...
Rafalowicz, Ewaryst, Steland, Ansgar
core   +1 more source

Design of EWMA-type control chart

IOP Conference Series: Materials Science and Engineering, 2021
Abstract A control chart is typically examined based on the overall performance. This is crucial, as it will influence the final decision on the selection of a control chart. For this reason, the application of average run length (ARL) has been identified as the standard performance metric.
H W You, M A Shahrin, Z Mustafa
openaire   +1 more source

Prediction of Depression Relapse Using Machine Learning With Administrative Data: Balancing Complexity and Simplicity

Quality and Reliability Engineering International, EarlyView.
ABSTRACT Depression is a mental disorder with a high lifetime prevalence and one of the leading causes of disability worldwide. As many patients experience another depressive episode after being treated, predictive monitoring for the risk of relapse is essential for healthcare professionals to be able to follow up on patients and intervene early ...
Paulina von Stackelberg, Rob Goedhart, Leo C. E. Huberts, Joran Lokkerbol, Ş. İlker Birbil   +4 more
wiley   +1 more source

Design of a Control Chart Using Extended EWMA Statistic

Technologies, 2018
In the present paper, we propose a control chart based on extended exponentially weighted moving average (EEWMA) statistic to detect a quick shift in the mean. The mean and variance expression of the proposed EEWMA statistic are derived.
Muhammad Naveed, Muhamma Azam, Nasrullah Khan, Muhammad Aslam   +3 more
doaj   +1 more source

Windowed Mean Drift Exponentially Weighted Moving Average Control Chart for Monitoring Complex Autocorrelated Processes

Quality and Reliability Engineering International, EarlyView.
ABSTRACT In modern manufacturing environments, traditional statistical process control (SPC) methods often struggle with complex, dynamic data patterns, particularly when observations are autocorrelated. Control charts are useful tools used in SPC to detect any significant drift in a process.
Jeanette Maria Louw, Jean‐Claude Malela‐Majika, Kayode Samuel Adekeye, Aamir Saghir   +3 more
wiley   +1 more source

Effectiveness of Punch Grafting in Promoting Healing and Reducing Pain in Hard‐to‐Heal Leg Ulcers

Wound Repair and Regeneration, Volume 34, Issue 1, January/February 2026.
ABSTRACT Approximately 20% of chronic leg ulcers remain recalcitrant despite treatment of underlying factors and best standard of wound care. This study aimed to evaluate the effectiveness of partial‐thickness punch grafting in promoting healing and reducing pain in patients with chronic, hard‐to‐heal leg ulcers of various causes. In this single‐centre,
Julia Neuenschwander, Dieter O. Mayer, Ramon Lang, Caroline Staub‐Buset, Mirjam Nägeli, Jürg Hafner   +5 more
wiley   +1 more source