Results 21 to 30 of about 192,820 (257)

Cumulative Sum Chart Modeled under the Presence of Outliers

open access: yesMathematics, 2020
Cumulative sum control charts that are based on the estimated control limits are extensively used in practice. Such control limits are often characterized by a Phase I estimation error.
Nasir Abbas   +3 more
doaj   +1 more source

Comparison of different dose accumulation strategies to estimate organ doses after stereotactic magnetic resonance-guided adaptive radiotherapy

open access: yesRadiation Oncology, 2023
Introduction Re-irradiation is frequently performed in the era of precision oncology, but previous doses to organs-at-risk (OAR) must be assessed to avoid cumulative overdoses.
Sebastian Regnery   +15 more
doaj   +1 more source

Cumulative Sum Control Chart for a Doubly Truncated Binomial Distribution [PDF]

open access: yesThe Egyptian Statistical Journal, 1991
The CUSUM control chart for a doubly truncated binomial distribution (DTBD) is developed by using the well known approach of Johnson and the parameters of the V-mask are computed.
Samir Bhattacharya, Ashit Chakraborty
doaj   +1 more source

Learning curves for three specific procedures by anesthesiology residents using the learning curve cumulative sum (LC-CUSUM) test [PDF]

open access: yesKorean Journal of Anesthesiology, 2017
BackgroundThe learning curve cumulative sum (LC-CUSUM) test is an innovative tool that allows quantitative monitoring of individual medical performance during the learning process by determining when a predefined acceptable level of performance is ...
Gregoire Weil   +3 more
doaj   +1 more source

Fault tolerant control in an unmanned bicycle robot via sliding mode theory

open access: yesIET Cyber-systems and Robotics, 2022
In this work, a new active fault tolerant control (FTC) is developed for an unmanned bicycle robot based on an integration between a sliding mode control (SMC), fault detection (FD), and fault estimation (FE) via a residual signal.
Mousa Alizadeh   +2 more
doaj   +1 more source

Beyond Cumulative Sum Charting in Non-Stationarity Detection and Estimation

open access: yesIEEE Access, 2019
In computer science, stochastic processes, and industrial engineering, stationarity is often taken to imply a stable, predictable flow of events and non-stationarity, consequently, a departure from such a flow. Efficient detection and accurate estimation
Felix Zhan   +8 more
doaj   +1 more source

Assessment of the learning curve of video-assisted thoracoscopic sympathectomy in a single neurosurgical trainee: a cumulative summation analysis

open access: yesEgyptian Journal of Neurosurgery, 2021
Background Video-assisted thoracoscopic sympathectomy (VATS) is a common procedure unusually practiced by neurosurgeons due to lack of training. Objective To evaluate the learning curve for VATS in a young neurosurgeon with no previous experience in open
Hazem M. Alkosha, Yasser M. Elkiran
doaj   +1 more source

New Cumulative Sum Control Chart for Monitoring Poisson Processes

open access: yesIEEE Access, 2017
The cumulative sum (CUSUM) control charts are widely used for measurement control of continuous processes. However, the quality characteristics of interest in many production processes, follows a sequence of discrete counts for non-conformities often ...
Mu'azu Ramat Abujiya
doaj   +1 more source

Risk-adjusted zero-inflated Poisson CUSUM charts for monitoring influenza surveillance data

open access: yesBMC Medical Informatics and Decision Making, 2021
Background The influenza surveillance has been received much attention in public health area. For the cases with excessive zeroes, the zero-inflated Poisson process is widely used.
Yueying Tan   +7 more
doaj   +1 more source

LONGTERM CHANGES OF SOLAR ACTIVITY ASYMMETRY

open access: yesOdessa Astronomical Publications, 2016
We report results of analysis of the northsouth asymmetry of solar activity, solar magnetic fields. The analysis is based on the sunspot data, 1875–2015 (http://solarscience.msfc.nasa.gov/greenwch.shtml), largescale solar magnetic field (solar mean ...
U. M. Leiko
doaj   +1 more source

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