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Conference Paper

Long Term Prediction of Product Quality in a Glass Manufacturing Process Using a Kernel Based Approach

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons84193

Schölkopf,  B
Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Jung, T., Herrera, L., & Schölkopf, B. (2005). Long Term Prediction of Product Quality in a Glass Manufacturing Process Using a Kernel Based Approach. In IWANN 2005 (pp. 960-967). Berlin Heidelberg, Germany: Springer-Verlag.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-D6E3-3
Abstract
In this paper we report the results obtained using a kernel-based approach to predict the temporal development of four response signals in the process control of a glass melting tank with 16 input parameters. The data set is a revised version1 from the modelling challenge in EUNITE-2003. The central difficulties are: large time-delays between changes in the inputs and the outputs, large number of data, and a general lack of knowledge about the relevant variables that intervene in the process. The methodology proposed here comprises Support Vector Machines (SVM) and Regularization Networks (RN). We use the idea of sparse approximation both as a means of regularization and as a means of reducing the computational complexity. Furthermore, we will use an incremental approach to add new training examples to the kernel-based method and efficiently update the current solution. This allows us to use a sophisticated learning scheme, where we iterate between prediction and training, with good computational efficiency and satisfactory results.