Results 1 to 10 of about 5,991 (170)

Heterogeneous associations of cumulative heat exposure with cognitive decline among older Japanese adults. [PDF]

Alzheimers Dement
Abstract INTRODUCTION We investigated heterogeneity in the association between cumulative heat exposure and cognitive decline among older Japanese adults. METHODS We analyzed 33,877 adults aged ≥ 65 years from a nationwide cohort (2010–2023) linked with long‐term care insurance data.
Hikichi H, Chen K, Nawa N, Morita A, Matsuyama Y.   +4 more
europepmc   +2 more sources

Revisiting the one-sided EWMA control chart [PDF]

Journal of Applied Research on Industrial Engineering, 2022
Exponential Weighted Moving Average (EWMA) control charts have been widely used in Statistical Process Control (SPC) to detect small and persistent process shifts.
Duy Duong-Tran, Romina Dastoorian, Lee Wells   +2 more
doaj   +1 more source

Explicit analytical solutions for the average run length of modified EWMA control chart for ARX(p,r) processes [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2021
Statistical process control (SPC) plays a necessary role in manufacturing industry processes. An essential tool for SPC used for monitoring, measuring, controlling, and improving quality in various fields is the control chart.
Korakoch Silpakob, Yupaporn Areepong, Saowanit Sukparungsee, Rapin Sunthornwat   +3 more
doaj   +1 more source

Statistical Design for Monitoring Process Mean of a Modified EWMA Control Chart based on Autocorrelated Data

Walailak Journal of Science and Technology, 2021
From the principles of statistical process control, the observations are assumed to be identically and independently normally distributed, although this assumption is frequently untrue in practice.
Yadpirun SUPHARAKONSAKUN
doaj   +3 more sources

A logical operating model for the assessment of the forced sale value in the judicial procedures [Un modello logico -operativo per la stima del forced sale value nelle procedure giudiziarie]

Valori e Valutazioni, 2022
With reference to real estate auctions activated in the context of judicial procedures (bankruptcy and/or executive), this work develops and tests a logical operating model for the assessment of the forced sale value.
Pierluigi Morano, Marco Locurcio, Paola Amoruso   +2 more
doaj   +1 more source

A variable sampling interval EWMA t chart with auxiliary information – A robustness study in the presence of estimation error

Alexandria Engineering Journal, 2022
This article proposes the variable sampling interval (VSI) exponentially weighted moving average (EWMA) t chart for the process mean using auxiliary information (AI) (denoted as the VSI EWMA t-AI chart).
Peh Sang Ng, Michael B.C. Khoo, Sajal Saha, Ming Ha Lee   +3 more
doaj   +1 more source

Modification of ARL for detecting changes on the double EWMA chart in time series data with the autoregressive model

Connection Science, 2023
This research aims to derive the average run length (ARL) evaluation of the double exponentially weighted moving average (double EWMA) control chart for observation data that follows exponential white noise in a time series model with an autoregressive ...
Kotchaporn Karoon, Yupaporn Areepong, Saowanit Sukparungsee   +2 more
doaj   +1 more source

Symmetry of gamma distribution data about the mean after processing with EWMA function

Scientific Reports, 2023
Statistical Process Control (SPC) plays a vital role in maintaining quality and reducing variability in manufacturing processes. Among SPC techniques, the Exponentially Weighted Moving Average (EWMA) stands out for its ability to detect small process ...
Mohammad M. Hamasha, Mohammed S. Obeidat, Khalid Alzoubi, Ghada Shawaheen, Ahmad Mayyas, Hesham A. Almomani, Akram Al-Sukkar, Adnan Mukkatash   +7 more
doaj   +1 more source

Improving Stock Price Prediction Using Combining Forecasts Methods

IEEE Access, 2021
This study presents an outcome of pursuing better and effective forecasting methods. The study primarily focuses on the effective use of divide-and-conquer strategy with Empirical Mode Decomposition or briefly EMD algorithm.
Mohammad Raquibul Hossain, Mohd Tahir Ismail, Samsul Ariffin Bin Abdul Karim   +2 more
doaj   +1 more source

Simulation Study for Parametric EWMA and NPWEWPA-SR Control Charts Against Non-Normality Assumptions

Cauchy: Jurnal Matematika Murni dan Aplikasi, 2023
Common control chart types such as EWMA require assumptions to have valid information.  The study compares IC robustness and OOC performance for parametric EWMA and NPEWMA-SR control charts in violation of symmetrical assumption.
Anwar Fitrianto, Lai Ming Choon, Wan Zuki Azman Wan Muhamad   +2 more
doaj   +1 more source