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Klaus-Robert Müller

Researcher at Technical University of Berlin

Publications -  799
Citations -  98394

Klaus-Robert Müller is an academic researcher from Technical University of Berlin. The author has contributed to research in topics: Artificial neural network & Computer science. The author has an hindex of 129, co-authored 764 publications receiving 79391 citations. Previous affiliations of Klaus-Robert Müller include Korea University & University of Tokyo.

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Understanding Machine-learned Density Functionals

TL;DR: In this article, kernel ridge regression is used to approximate the kinetic energy of non-interacting fermions in a one-dimensional box as a functional of their density, and the properties of different kernels and methods of cross-validation are explored.
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Improved decoding of neural activity from fMRI signals using non-separable spatiotemporal deconvolutions

TL;DR: Results show that abandoning the spatiotemporal separability assumption consistently improves the decoding accuracy of neural signals from fMRI data, and are compared with results from optical imaging and fMRI studies.
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Noise robust estimates of correlation dimension and K2 entropy.

TL;DR: Using Gaussian kernels to define the correlation sum, it is shown theoretically that the estimates, which are derived for additive white Gaussian noise, are also robust for moderately colored noise and underline the usefulness of the proposed correction schemes.
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Directional Variance Adjustment: Bias Reduction in Covariance Matrices Based on Factor Analysis with an Application to Portfolio Optimization

TL;DR: In a thorough empirical study for the US, European, and Hong Kong stock market, it is shown that the proposed method leads to improved portfolio allocation and introduces the Directional Variance Adjustment (DVA) algorithm, which diminishes the systematic error.