Search Results for author: Georg Hahn

Found 5 papers, 1 papers with code

Penalized Principal Component Analysis using Nesterov Smoothing

no code implementations25 Sep 2023 Rebecca M. Hurwitz, Georg Hahn

In this paper, we explore the penalized eigenvalue problem (PEP) which reformulates the computation of the first eigenvector as an optimization problem and adds an L1 penalty constraint.

Sampling binary sparse coding QUBO models using a spiking neuromorphic processor

no code implementations2 Jun 2023 Kyle Henke, Elijah Pelofske, Georg Hahn, Garrett T. Kenyon

We demonstrate neuromorphic computing is suitable for sampling low energy solutions of binary sparse coding QUBO models, and although Loihi 1 is capable of sampling very sparse solutions of the QUBO models, there needs to be improvement in the implementation in order to be competitive with simulated annealing.

Boolean Hierarchical Tucker Networks on Quantum Annealers

1 code implementation12 Mar 2021 Elijah Pelofske, Georg Hahn, Daniel O'Malley, Hristo N. Djidjev, Boian S. Alexandrov

Quantum annealing is an emerging technology with the potential to solve some of the computational challenges that remain unresolved as we approach an era beyond Moore's Law.

Quantum Physics

Reducing quantum annealing biases for solving the graph partitioning problem

no code implementations8 Mar 2021 Elijah Pelofske, Georg Hahn, Hristo N. Djidjev

We first quantify the bias of the implementation of the constraint on the quantum annealer, that is, we require, in an unbiased implementation, that any two vertices have the same likelihood of being assigned to the same or to different parts of the partition.

graph partitioning Quantum Physics

Optimizing embedding-related quantum annealing parameters for reducing hardware bias

no code implementations2 Nov 2020 Aaron Barbosa, Elijah Pelofske, Georg Hahn, Hristo N. Djidjev

One way to deal with these imperfections and to improve the quality of the annealing results is to apply a variety of pre-processing techniques such as spin reversal (SR), anneal offsets (AO), or chain weights (CW).

graph partitioning

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