Refine my results

Specific Collection

Language

Università della Svizzera italiana

Block-enhanced precision matrix estimation for large-scale datasets

Eftekhari, Aryan ; Pasadakis, Dimosthenis ; Bollhöfer, Matthias ; Scheidegger, Simon ; Schenk, Olaf

In: Journal of computational science, 2021, vol. 53, p. 13

The ℓ1-regularized Gaussian maximum likelihood method is a common approach for sparse precision matrix estimation, but one that poses a computational challenge for high-dimensional datasets. We present a novel ℓ1- regularized maximum likelihood method for performant large-scale sparse precision matrix estimation utilizing the block structures in the underlying computations. We identify the...

Consortium of Swiss Academic Libraries

Approximate maximum likelihood estimation for population genetic inference

Bertl, Johanna ; Ewing, Gregory ; Kosiol, Carolin ; Futschik, Andreas

In: Statistical Applications in Genetics and Molecular Biology, 2017, vol. 16, no. 5-6, p. 291-312

Consortium of Swiss Academic Libraries

Fast Update of Conditional Simulation Ensembles

Chevalier, Clément ; Emery, Xavier ; Ginsbourger, David

In: Mathematical Geosciences, 2015, vol. 47, no. 7, p. 771-789

Consortium of Swiss Academic Libraries

Convex geodesic bicombings and hyperbolicity

Descombes, Dominic ; Lang, Urs

In: Geometriae Dedicata, 2015, vol. 177, no. 1, p. 367-384

Università della Svizzera italiana

Gaussian mean field regularizes by limiting learned information

Kunze, Julius ; Kirsch, Louis ; Ritter, Hippolyt ; Barber, David

In: Entropy, 2019, vol. 21, no. 8, p. 758

Variational inference with a factorized Gaussian posterior estimate is a widely-used approach for learning parameters and hidden variables. Empirically, a regularizing effect can be observed that is poorly understood. In this work, we show how mean field inference improves generalization by limiting mutual information between learned parameters and the data through noise. We quantify a...

Consortium of Swiss Academic Libraries

On Piterbarg Max-Discretisation Theorem for Standardised Maximum of Stationary GaussianProcesses

Tan, Zhongquan ; Hashorva, Enkelejd

In: Methodology and Computing in Applied Probability, 2014, vol. 16, no. 1, p. 169-185

Consortium of Swiss Academic Libraries

On the mod-Gaussian convergence of a sum over primes

Wahl, Martin

In: Mathematische Zeitschrift, 2014, vol. 276, no. 3-4, p. 635-654

Consortium of Swiss Academic Libraries

Local Stereology of Tensors of Convex Bodies

Jensen, Eva ; Ziegel, Johanna

In: Methodology and Computing in Applied Probability, 2014, vol. 16, no. 2, p. 263-282