Results 11 to 20 of about 5,687 (280)

On Model Selection for Autocorrelated Processes in Statistical Process Control

open access: yesQuality and Reliability Engineering International, 2016
Using traditional control charts to monitor autocorrelated processes is not beneficial, because it will lead us to misleading detections in the processes. One of the methods used to deal with the control charts for autocorrelated process is the model‐based approach.
Abdaljbbar B. A. Dawod   +2 more
openaire   +4 more sources

Packet dropping characteristics in a queue with autocorrelated arrivals

open access: yesJournal of Communications Software and Systems, 2008
This paper provides a detailed description of the packet dropping process connected with the buffer overflows in a network node. Namely, we show the formulas for the most important loss characteristics, both in the transient and the stationary regime and
Andrzej Chydzinski   +2 more
doaj   +4 more sources

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   +1 more source

On-line recognition of abnormal patterns in bivariate autocorrelated process using random forest [PDF]

open access: yes, 2022
It is not uncommon that two or more related process quality characteristics are needed to be monitored simultaneously in production process for most of time.
Chen, Chunmei   +3 more
core   +1 more source

Autocorrelated Error with AR(1) Process

open access: yes, 2023
The autoregressive data set indicates data generated with autocorrelated error with AR ...
Isiaka Oloyede (15361816)
core   +1 more source

A Novel Scheme of Control Chart Patterns Recognition in Autocorrelated Processes

open access: yesMathematics, 2023
Control chart pattern recognition (CCPR) can quickly recognize anomalies in charts, making it an important tool for narrowing the search scope of abnormal causes.
Cang Wu   +4 more
doaj   +1 more source

Nonparametric performance hypothesis testing with the information ratio

open access: yesCogent Economics & Finance, 2021
This study proposes a nonparametric bootstrap-based test to compare performances between two portfolios in terms of their information ratio. This serves as an extension to the literature that tests performance between two portfolio investment strategies ...
Jacque Bon-Isaac Aboy, Joselito Magadia
doaj   +1 more source

Process incapability index for autocorrelated data in the presence of measurement errors

open access: yes, 2023
Process incapability index is a useful tool for measuring the performance of a process to maintain the quality of products. In this article, we discuss some statistical properties of the estimator of process incapability index when process observations ...
Anis, M. Z.   +3 more
core   +1 more source

Can crude oil prices predict world tuna prices? [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2020
World tuna prices exhibit substantial fluctuations over time. We studied monthly tuna and preceding crude oil prices from 1986 to 2018, using linear regression models with autoregressive and moving average (ARMA) errors.
Boonmee Lee   +3 more
doaj   +1 more source

Rates and Rocks: Strengths and Weaknesses of Molecular Dating Methods

open access: yesFrontiers in Genetics, 2020
I present here an in-depth, although non-exhaustive, review of two topics in molecular dating. Clock models, which describe the evolution of the rate of evolution, are considered first.
Stéphane Guindon
doaj   +1 more source

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