Search Results for author: Ewout van den Berg

Found 7 papers, 1 papers with code

Model-free readout-error mitigation for quantum expectation values

no code implementations17 Dec 2020 Ewout van den Berg, Zlatko K. Minev, Kristan Temme

Here, we propose a very simple method that forces the bias in the expectation value to appear as a multiplicative factor that can be measured directly and removed at the cost of an increase in the sampling complexity for the observable.

Quantum Physics

The Ocean Tensor Package

1 code implementation20 Oct 2018 Ewout van den Berg

Matrix and tensor operations form the basis of a wide range of fields and applications, and in many cases constitute a substantial part of the overall computational complexity.

Estimating Information Flow in Deep Neural Networks

no code implementations12 Oct 2018 Ziv Goldfeld, Ewout van den Berg, Kristjan Greenewald, Igor Melnyk, Nam Nguyen, Brian Kingsbury, Yury Polyanskiy

We then develop a rigorous estimator for $I(X;T)$ in noisy DNNs and observe compression in various models.

Clustering

Training variance and performance evaluation of neural networks in speech

no code implementations14 Jun 2016 Ewout van den Berg, Bhuvana Ramabhadran, Michael Picheny

In this work we study variance in the results of neural network training on a wide variety of configurations in automatic speech recognition.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +1

Some Insights into the Geometry and Training of Neural Networks

no code implementations2 May 2016 Ewout van den Berg

Neural networks have been successfully used for classification tasks in a rapidly growing number of practical applications.

Classification General Classification

SLOPE - Adaptive variable selection via convex optimization

no code implementations14 Jul 2014 Małgorzata Bogdan, Ewout van den Berg, Chiara Sabatti, Weijie Su, Emmanuel J. Candès

SLOPE, short for Sorted L-One Penalized Estimation, is the solution to \[\min_{b\in\mathbb{R}^p}\frac{1}{2}\Vert y-Xb\Vert _{\ell_2}^2+\lambda_1\vert b\vert _{(1)}+\lambda_2\vert b\vert_{(2)}+\cdots+\lambda_p\vert b\vert_{(p)},\] where $\lambda_1\ge\lambda_2\ge\cdots\ge\lambda_p\ge0$ and $\vert b\vert_{(1)}\ge\vert b\vert_{(2)}\ge\cdots\ge\vert b\vert_{(p)}$ are the decreasing absolute values of the entries of $b$.

Methodology

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