Results 61 to 70 of about 30,909 (252)

The GLRT for statistical process control of autocorrelated processes [PDF]

open access: yesIIE Transactions, 1999
This paper presents an on-line Statistical Process Control (SPC) technique, based on a Generalized Likelihood Ratio Test (GLRT), for detecting and estimating mean shifts in autocorrelated processes that follow a normally distributed Autoregressive Integrated Moving Average (ARIMA) model.
Apley, Daniel W., Shi, Jianjun
openaire   +2 more sources

Persistence and cycles in the US Federal Funds rate [PDF]

open access: yes, 2012
This paper uses long-range dependence techniques to analyse two important features of the US Federal Funds effective rate, namely its persistence and cyclical behaviour. It examines annual, monthly, bi-weekly and weekly data, from 1954 until 2010.
Caporale, GM, Gil-Alana, LA
core   +3 more sources

A CNN Approach for Simultaneous Spatiotemporal Fault Interpretation

open access: yesQuality and Reliability Engineering International, EarlyView.
ABSTRACT Convolutional Neural Networks (CNNs) have emerged as one of the most effective tools for image analysis. In this study, we propose a custom‐designed CNN architecture to construct a process control scheme based on image data. The product image is partitioned into equal‐sized grids, each comprising three channels: (i) reference image, (ii ...
Hamed Sabahno
wiley   +1 more source

Process Capability Analysis in the Presence of Autocorrelation [PDF]

open access: yesJournal of Optimization in Industrial Engineering, 2011
The classical method of process capability analysis necessarily assumes that collected data are independent; nonetheless, some processes such as biological and chemical processes are autocorrelated and violate the independency assumption.
Mohsen Mohamadi   +2 more
doaj  

Multioutput least square SVR-based multivariate EWMA control chart: The performance evaluation and application

open access: yesCogent Engineering, 2018
Autocorrelation leads to a bias estimator of standard control charts. It is important to develop control chart that allows autocorrelation and to evaluate its performance.
Hidayatul Khusna   +4 more
doaj   +1 more source

Variation Pattern Recognition of the BIW OCMM Online Measurement Data Based on LSTM NN

open access: yesIEEE Access, 2019
An accurate recognition of a dimensional variation pattern is very important for producing high-quality body-in-white (BIW). The wide application of optical coordination measurement machines (OCMM) in vehicle factory provided massive online dimensional ...
Changhui Liu, Kun Chen, Sun Jin, Yuan Qu
doaj   +1 more source

Women's Empowerment, Governance, and the Economics of Clean Cooking Transitions in Africa

open access: yesSustainable Development, EarlyView.
ABSTRACT Over the past few decades, the global economy, particularly in developing nations, has persistently grappled with rising dependence on conventional energy resources, thus rendering the realization of Sustainable Development Goals 5 and 7 (SDGs 5 and 7) an elusive aspiration for the international community.
Stephen Kelechi Dimnwobi   +2 more
wiley   +1 more source

Distributed Fusion Filtering in Networked Systems with Random Measurement Matrices and Correlated Noises

open access: yesDiscrete Dynamics in Nature and Society, 2015
The distributed fusion state estimation problem is addressed for sensor network systems with random state transition matrix and random measurement matrices, which provide a unified framework to consider some network-induced random phenomena.
Raquel Caballero-Águila   +2 more
doaj   +1 more source

Variation in perceptions of pain and attitudes towards non‐steroidal anti‐inflammatory drug use for different lameness scenarios in dairy cattle

open access: yesVeterinary Record, EarlyView.
Abstract Background Lameness diagnosis and treatment have important welfare and production consequences in dairy farming. Methods A questionnaire examining factors affecting non‐steroidal anti‐inflammatory drug (NSAID) use and pain scores associated with 16 lameness scenarios was distributed among UK farmers, veterinarians, veterinary technicians and ...
Emily Craven   +3 more
wiley   +1 more source

Comparison of Process Capability Indices under Autocorrelated Data Comparación de índices de capacidad de procesos con datos autocorrelacionados

open access: yesRevista Colombiana de Estadística, 2007
The process capability indices provide a measure of how a process fits within the specification limits. In calculating indices is usual to assume that the process data are independent.
JOSÉ ALBERTO VARGAS   +1 more
doaj  

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