@article{Weigand1994, author = {Weigand, Christoph}, title = {Optimal Production Schedule for a K Products Single Machine Problem}, series = {Economic Quality Control. 9 (1994)}, journal = {Economic Quality Control. 9 (1994)}, isbn = {0940-5151}, pages = {91 -- 101}, year = {1994}, language = {en} } @article{WeigandCollaniSaniga1994, author = {Weigand, Christoph and Collani, E. v. and Saniga, E.M.}, title = {Economic Adjustment Design for -Control Charts. E.v.Collani, E.M. Saniga, Ch. Weigand}, series = {IIE Transactions / Institute of Industrial Engineers. 26 (1994), H. 6}, journal = {IIE Transactions / Institute of Industrial Engineers. 26 (1994), H. 6}, isbn = {0569-5554}, year = {1994}, language = {en} } @article{Weigand1991, author = {Weigand, Christoph}, title = {Optimale Maschinenjustierung}, series = {Technische Hochschule / Bibliothek: Wissenschaftliche Zeitschrift. 37 (1991)}, journal = {Technische Hochschule / Bibliothek: Wissenschaftliche Zeitschrift. 37 (1991)}, isbn = {0043-6917}, pages = {167 -- 175}, year = {1991}, language = {de} } @article{Weigand1991, author = {Weigand, Christoph}, title = {A Solution to the Scheduling Problem Taking into Account Quality}, series = {Operations research '91 : extended abstracts of the 16th Symposium on Operations Research held at the University of Trier at September 9 - 11, 1991 / [GM{\"O}OR]. Peter Gritzmann ... (eds.)}, journal = {Operations research '91 : extended abstracts of the 16th Symposium on Operations Research held at the University of Trier at September 9 - 11, 1991 / [GM{\"O}OR]. Peter Gritzmann ... (eds.)}, publisher = {Physica-Verl.}, address = {Heidelberg}, isbn = {3790806080}, pages = {373 -- 375}, year = {1991}, language = {en} } @article{Weigand1990, author = {Weigand, Christoph}, title = {Optimal Adjustment Policies}, series = {Proceedings of the First Ume{\aa}-W{\"u}rzburg Conference in Statistics : Kronlund Conference Center and University of Ume{\aa}, September 10 - 14, 1990 / ed. by Kurt Br{\"a}nn{\"a}s}, journal = {Proceedings of the First Ume{\aa}-W{\"u}rzburg Conference in Statistics : Kronlund Conference Center and University of Ume{\aa}, September 10 - 14, 1990 / ed. by Kurt Br{\"a}nn{\"a}s}, publisher = {Univ. of Ume{\aa}}, address = {Ume{\aa}}, isbn = {91-7174-564-5}, pages = {147 -- 158}, year = {1990}, language = {en} } @book{Weigand2006, author = {Weigand, Christoph}, title = {Statistik mit und ohne Zufall : eine anwendungsorientierte Einf{\"u}hrung ; mit 10 Tabellen / Christoph Weigand}, publisher = {Physica-Verl.}, address = {Heidelberg}, isbn = {3-7908-1693-0}, pages = {XIII, 421 S. : graph. Darst.}, year = {2006}, language = {de} } @article{Weigand2003, author = {Weigand, Christoph}, title = {Technically Optimal Inspection Policy with Arithmetical Adaption}, series = {IMA Journal of Management Mathematics. 14 (2003), H. 4}, journal = {IMA Journal of Management Mathematics. 14 (2003), H. 4}, isbn = {1471-678X}, pages = {357 -- 371}, year = {2003}, language = {en} } @article{Weigand2003, author = {Weigand, Christoph}, title = {Economically Optimal Inspection Policy with Geometrical Adaption}, series = {Journal of Applied Statistics. 30 (2003), H. 5}, journal = {Journal of Applied Statistics. 30 (2003), H. 5}, isbn = {0266-4763}, pages = {555 -- 569}, year = {2003}, language = {en} } @article{Weigand2001, author = {Weigand, Christoph}, title = {Economically Optimal Inspection Policy with Arithmetical Adaption}, series = {Applied stochastic models and data analysis / [10th International Symposium on Applied Stochastic Models and Analysis, June 12-15 2001, Universit{\´e} Technologique de Compi{\`e}gne] ; editors G{\´e}rard Govaert, Jacques Janssen, Nikolaos Limnios.}, journal = {Applied stochastic models and data analysis / [10th International Symposium on Applied Stochastic Models and Analysis, June 12-15 2001, Universit{\´e} Technologique de Compi{\`e}gne] ; editors G{\´e}rard Govaert, Jacques Janssen, Nikolaos Limnios.}, publisher = {Universit{\´e} Technologique de Compi{\`e}gne}, address = {Compi{\`e}gne}, pages = {1010 -- 1015}, year = {2001}, language = {en} } @article{Weigand2000, author = {Weigand, Christoph}, title = {Economically Optimal Adaptive Inspection Policies}, series = {Economic Quality Control. 15 (2000), H. 1/2}, journal = {Economic Quality Control. 15 (2000), H. 1/2}, isbn = {0940-5151}, pages = {55 -- 77}, year = {2000}, language = {en} } @article{Weigand1992, author = {Weigand, Christoph}, title = {Economic Machine Adjustment in the Case of Product Screening .E.v.Collani, Ch. Weigand}, series = {Statistical Papers. 33 (1992)}, journal = {Statistical Papers. 33 (1992)}, pages = {171 -- 184}, year = {1992}, language = {en} } @article{Weigand1993, author = {Weigand, Christoph}, title = {On the Effects of SPC on Production Time}, series = {Economic Quality Control. 8 (1993)}, journal = {Economic Quality Control. 8 (1993)}, isbn = {0940-5151}, pages = {23 -- 61}, year = {1993}, language = {en} } @article{Weigand1992, author = {Weigand, Christoph}, title = {A new Approach for Optimal Control of a Production process}, series = {Economic Quality Control. 7 (1992)}, journal = {Economic Quality Control. 7 (1992)}, isbn = {0940-5151}, pages = {225 -- 251}, year = {1992}, language = {en} } @book{Weigand2009, author = {Weigand, Christoph}, title = {Statistik mit und ohne Zufall : Eine anwendungsorientierte Einf{\"u}hrung . 2. Aufl.}, publisher = {Physica-Verlag}, address = {Heidelberg}, isbn = {978-3-7908-2346-2}, pages = {XIII, 469 S. : Ill., graph. Darst.}, year = {2009}, language = {de} } @article{Weigand2009, author = {Weigand, Christoph}, title = {Defining Precisions for Reliable Measurement and Estimation Procedures}, series = {Economic Quality Control. 24 (2009), H. 1}, journal = {Economic Quality Control. 24 (2009), H. 1}, publisher = {De Gruyter}, address = {Berlin}, isbn = {0940-5151}, pages = {5 -- 33}, year = {2009}, language = {en} } @article{Weigand2012, author = {Weigand, Christoph}, title = {Statistical Tests Based on Reliability and Precision}, series = {Economic Quality Control : EQC ; international journal for quality and reliability}, volume = {27}, journal = {Economic Quality Control : EQC ; international journal for quality and reliability}, number = {1}, publisher = {De Gruyter}, address = {Berlin}, issn = {1869-6147}, doi = {10.1515/eqc-2012-0002}, pages = {43 -- 64}, year = {2012}, abstract = {The construction of a statistical test is investigated which is based only on "reliability" and "precision" as quality criteria. The reliability of a statistical test is quantifiedin a straightforward way by the probability that the decision of the test is correct. However, the quantification of the precision of a statistical test is not at all evident. Thereforethe paper presents and discusses several approaches. Moreover the distinction of "nullhypothesis" and "alternative hypothesis" is not necessary any longer.}, language = {en} } @book{Weigand2019, author = {Weigand, Christoph}, title = {Statistik mit und ohne Zufall : Eine anwendungsorientierte Einf{\"u}hrung}, edition = {3. Aufl.}, publisher = {Springer Spektrum}, address = {Berlin, Heidelberg}, isbn = {978-3-662-59309-7}, doi = {10.1007/978-3-662-59309-7}, pages = {499 S.}, year = {2019}, language = {de} } @article{MuellerSeginWeigandetal.2022, author = {Mueller, Tobias and Segin, Alexander and Weigand, Christoph and Schmitt, Robert H.}, title = {Feature selection for measurement models}, series = {International journal of quality \& reliability management}, journal = {International journal of quality \& reliability management}, number = {Vol. ahead-of-print, No. ahead-of-print.}, publisher = {Emerald Group Publishing Limited}, address = {Bingley}, issn = {0265-671X}, doi = {10.1108/IJQRM-07-2021-0245}, year = {2022}, abstract = {Purpose 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. Design/methodology/approach 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. Findings 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. Originality/value 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.}, language = {en} }