Results 11 to 20 of about 416,034 (304)

On Computing Average Common Substring Over Run Length Encoded Sequences [PDF]

open access: yesFundamenta Informaticae, 2018
The Average Common Substring (ACS) is a popular alignment-free distance measure for phylogeny reconstruction. The ACS of a sequence X[1, x] w.r.t. another sequence Y[1, y] is ACS(X, Y) =  1 x ∑ i=1 x max j lcp(X[i, x], Y[j, y]) The lcp(·, ·) of two input sequences is the length of their longest common prefix.
Sahar Hooshmand   +3 more
openaire   +4 more sources

Standard Deviation of the Run Length (SDRL) and Average Run Length (ARL) Performances of EWMA and Synthetic Charts [PDF]

open access: yesInternational Journal of Engineering and Technology, 2015
Statistical process control (SPC) techniques are applied to monitor a process. The control chart is a valuable tool in SPC. the shewhart control chart was the first chart proposed in the literature of SPC and it is still used in process monitoring in today's manufacturing and service industries. both the exponentially weighted moving average (EWMA) and
Michael B. C. Khoo   +3 more
openaire   +2 more sources

The Expected Average Run Length of the EWMA Median Chart with Estimated Process Parameters [PDF]

open access: yesAustrian Journal of Statistics, 2020
The performance of a control chart is commonly investigated based on the assumption of known process parameters. Nevertheless, in most manufacturing and service applications, the process parameters are usually unknown to practitioners.
Huay Woon You   +3 more
doaj   +2 more sources

Performance of Synthetic Double Sampling Chart with Estimated Parameters Based on Expected Average Run Length

open access: yesJournal of Probability and Statistics, 2018
A synthetic double sampling (SDS) chart is commonly evaluated based on the assumption that process parameters (namely, mean and standard deviation) are known.
Huay Woon You
doaj   +2 more sources

Optimal designs of the median run length based double sampling X chart for minimizing the average sample size. [PDF]

open access: yesPLoS ONE, 2013
Designs of the double sampling (DS) X chart are traditionally based on the average run length (ARL) criterion. However, the shape of the run length distribution changes with the process mean shifts, ranging from highly skewed when the process is in ...
Wei Lin Teoh   +2 more
doaj   +2 more sources

Monitoring Betaine Using Interval Time Between Events Control Chart

open access: yesFrontiers in Nutrition, 2022
A generalization of moving average (MA) control chart for the exponential distribution under classical statistics is presented in this article. The designing of the MA control chart for the exponential distribution under neutrosophic statistics is also ...
Muhammad Saleem   +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]

open access: yesSongklanakarin 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   +3 more
doaj   +1 more source

A New Attribute Control Chart Using Multiple Dependent State Repetitive Sampling

open access: yesIEEE Access, 2017
In this paper, a new attribute control chart using multiple-dependent state repetitive sampling is designed. The operational procedure and structure of the proposed control chart is given.
Mansour Sattam Aldosari   +2 more
doaj   +1 more source

A New Control Chart for Monitoring Reliability Using Sudden Death Testing Under Weibull Distribution

open access: yesIEEE Access, 2017
In this paper, a new control chart using sudden death testing is designed by assuming that the lifetime/failure time of the product follows the Weibull distribution. The structure of the proposed chart is presented.
Muhammad Aslam   +2 more
doaj   +1 more source

A Comparison of Shewhart-Type Time-Between-Events Control Charts Based on the Renewal Process

open access: yesIEEE Access, 2020
To study the high quality processes, time-between-events (TBE) control charts have several advantages over the ordinary control charts. However, the existing TBE charts are based on the exponential distribution, which limit the application of these ...
Sajid Ali   +3 more
doaj   +1 more source

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