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Partial Least Squares for Heterogeneous Data

  • Peter BühlmannEmail author
Conference paper
Part of the Springer Proceedings in Mathematics & Statistics book series (PROMS, volume 173)

Abstract

Large-scale data, where the sample size and the dimension are high, often exhibits heterogeneity. This can arise for example in the form of unknown subgroups or clusters, batch effects or contaminated samples. Ignoring these issues would often lead to poor prediction and estimation. We advocate the maximin effects framework (Meinshausen and Bühlmann, Maximin effects in inhomogeneous large-scale data. Preprint arXiv:1406.0596, 2014) to address the problem of heterogeneous data. In combination with partial least squares (PLS) regression, we obtain a new PLS procedure which is robust and tailored for large-scale heterogeneous data. A small empirical study complements our exposition of new PLS methodology.

Keywords

Partial least square regression (PLSR) Heterogeneous data Big data Minimax Maximin 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Seminar for Statistics, ETH ZurichZürichSwitzerland

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