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Forecasting and Granger Modelling with Non-linear Dynamical Dependencies

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Published in Machine Learning and Knowledge Discovery in Databases, European Conference, ECML PKDD 2017, Proceedings, Part II. Skopje, Macedonia - 18-22 September 2017 - Cham: Springer. 2017, p. 544-558
Abstract Traditional linear methods for forecasting multivariate time series are not able to satisfactorily model the non-linear dependencies that may exist in non-Gaussian series. We build on the theory of learning vector-valued functions in the reproducing kernel Hilbert space and develop a method for learning prediction functions that accommodate such non-linearities. The method not only learns the predictive function but also the matrix-valued kernel underlying the function search space directly from the data. Our approach is based on learning multiple matrix-valued kernels, each of those composed of a set of input kernels and a set of output kernels learned in the cone of positive semi-definite matrices. In addition to superior predictive performance in the presence of strong non-linearities, our method also recovers the hidden dynamic relationships between the series and thus is a new alternative to existing graphical Granger techniques.
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ISBN: 978-3-319-71245-1
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Research groups Computer Vision and Multimedia Laboratory
Viper group
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GREGOROVA, Magda, KALOUSIS, Alexandros, MARCHAND-MAILLET, Stéphane. Forecasting and Granger Modelling with Non-linear Dynamical Dependencies. In: Machine Learning and Knowledge Discovery in Databases, European Conference, ECML PKDD 2017, Proceedings, Part II. Skopje, Macedonia. Cham : Springer, 2017. p. 544-558. https://archive-ouverte.unige.ch/unige:119715

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Deposited on : 2019-06-19

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