2016
DOI: 10.1016/j.aca.2016.03.046
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Fusion strategies for selecting multiple tuning parameters for multivariate calibration and other penalty based processes: A model updating application for pharmaceutical analysis

Abstract: New multivariate calibration methods and other processes are being developed that require selection of multiple tuning parameter (penalty) values to form the final model. With one or more tuning parameters, using only one measure of model quality to select final tuning parameter values is not sufficient. Optimization of several model quality measures is challenging. Thus, three fusion ranking methods are investigated for simultaneous assessment of multiple measures of model quality for selecting tuning paramet… Show more

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Cited by 29 publications
(32 citation statements)
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“…The processes known as sum of ranking differences (SRD) is used in this study with numerous model quality measures to automatically select calibration tuning parameter values for λ , η , and the number of eigenvectors. The SRD has been shown to be effective in selecting up to 2 calibration tuning parameters and has been well described. Briefly, a matrix of model quality measures is formed with rows designating respective model quality measures and a column for each tuning parameter (tuning parameter triplet in this study).…”
Section: Sample‐wise Calibrationmentioning
confidence: 99%
See 1 more Smart Citation
“…The processes known as sum of ranking differences (SRD) is used in this study with numerous model quality measures to automatically select calibration tuning parameter values for λ , η , and the number of eigenvectors. The SRD has been shown to be effective in selecting up to 2 calibration tuning parameters and has been well described. Briefly, a matrix of model quality measures is formed with rows designating respective model quality measures and a column for each tuning parameter (tuning parameter triplet in this study).…”
Section: Sample‐wise Calibrationmentioning
confidence: 99%
“…In previous SRD tuning parameter selection studies, filtering mechanisms were used to eliminate some models from consideration by SRD . Specifically, models were removed from all the possible models across all tuning parameter values not passing specified thresholds.…”
Section: Sample‐wise Calibrationmentioning
confidence: 99%
“…Therefore, the smallest SRD value was identified. It should be noted that because of the different scales of the merit value will affect on the ranking results, therefore, the data of each row in the SRD input matrix are normalized with a mean value of 0 and a standard deviation of 1 before SRD computation …”
Section: Theorymentioning
confidence: 99%
“…The sum of ranking differences (SRD) is a recently proposed method to determine the similarity between models and facilitate the selection of models based on their own evaluation merits without considering weight allocation problems . Accordingly, the SRD method was employed to objectively select the optimal parameter combination of the latent variable and the threshold value of the variable importance index in this work.…”
Section: Introductionmentioning
confidence: 99%
“…It has been applied to various problems so far: from checking the multi-class classification performance in the case of tobacco leaf grades [37] via ranking and classifying chromatographic systems [38,39], to selection of multiple tuning parameters for multivariate calibration [40].…”
Section: Sum Of Ranking Differencesmentioning
confidence: 99%