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Feature selection for measurement models

Tobias Mueller (Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen University, Aachen, Germany)
Alexander Segin (FH Aachen, Aachen, Germany)
Christoph Weigand (FH Aachen, Aachen, Germany)
Robert H. Schmitt (Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen University, Aachen, Germany) (Fraunhofer Institute for Production Technology IPT, Aachen, Germany)

International Journal of Quality & Reliability Management

ISSN: 0265-671X

Article publication date: 25 January 2022

Issue publication date: 24 February 2023




In the determination of the measurement uncertainty, the GUM procedure requires the building of a measurement model that establishes a functional relationship between the measurand and all influencing quantities. Since the effort of modelling as well as quantifying the measurement uncertainties depend on the number of influencing quantities considered, the aim of this study is to determine relevant influencing quantities and to remove irrelevant ones from the dataset.


In this work, it was investigated whether the effort of modelling for the determination of measurement uncertainty can be reduced by the use of feature selection (FS) methods. For this purpose, 9 different FS methods were tested on 16 artificial test datasets, whose properties (number of data points, number of features, complexity, features with low influence and redundant features) were varied via a design of experiments.


Based on a success metric, the stability, universality and complexity of the method, two FS methods could be identified that reliably identify relevant and irrelevant influencing quantities for a measurement model.


For the first time, FS methods were applied to datasets with properties of classical measurement processes. The simulation-based results serve as a basis for further research in the field of FS for measurement models. The identified algorithms will be applied to real measurement processes in the future.



The authors would like to thank the German Research Foundation DFG for the support and the funding of the depicted research within the research project MUKOM (SCHM 1856/87-1).


Mueller, T., Segin, A., Weigand, C. and Schmitt, R.H. (2023), "Feature selection for measurement models", International Journal of Quality & Reliability Management, Vol. 40 No. 3, pp. 777-800.



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