Search Results for author: Stefan M. Wild

Found 13 papers, 4 papers with code

A framework for fully autonomous design of materials via multiobjective optimization and active learning: challenges and next steps

1 code implementation15 Apr 2023 Tyler H. Chang, Jakob R. Elias, Stefan M. Wild, Santanu Chaudhuri, Joseph A. Libera

In order to deploy machine learning in a real-world self-driving laboratory where data acquisition is costly and there are multiple competing design criteria, systems need to be able to intelligently sample while balancing performance trade-offs and constraints.

Active Learning Multiobjective Optimization

Numerical evidence against advantage with quantum fidelity kernels on classical data

no code implementations29 Nov 2022 Lucas Slattery, Ruslan Shaydulin, Shouvanik Chakrabarti, Marco Pistoia, Sami Khairy, Stefan M. Wild

We show that the general-purpose hyperparameter tuning techniques proposed to improve the generalization of quantum kernels lead to the kernel becoming well-approximated by a classical kernel, removing the possibility of quantum advantage.

Inductive Bias Quantum Machine Learning

Bandwidth Enables Generalization in Quantum Kernel Models

no code implementations14 Jun 2022 Abdulkadir Canatar, Evan Peters, Cengiz Pehlevan, Stefan M. Wild, Ruslan Shaydulin

Quantum computers are known to provide speedups over classical state-of-the-art machine learning methods in some specialized settings.

Inductive Bias

DeepAdversaries: Examining the Robustness of Deep Learning Models for Galaxy Morphology Classification

no code implementations28 Dec 2021 Aleksandra Ćiprijanović, Diana Kafkes, Gregory Snyder, F. Javier Sánchez, Gabriel Nathan Perdue, Kevin Pedro, Brian Nord, Sandeep Madireddy, Stefan M. Wild

On the other hand, we show that training with domain adaptation improves model robustness and mitigates the effects of these perturbations, improving the classification accuracy by 23% on data with higher observational noise.

Domain Adaptation Image Compression +1

Importance of Kernel Bandwidth in Quantum Machine Learning

1 code implementation9 Nov 2021 Ruslan Shaydulin, Stefan M. Wild

Quantum kernel methods are considered a promising avenue for applying quantum computers to machine learning problems.

BIG-bench Machine Learning Hyperparameter Optimization +2

Exploiting Symmetry Reduces the Cost of Training QAOA

1 code implementation25 Jan 2021 Ruslan Shaydulin, Stefan M. Wild

We show how by considering only the terms that are not connected by symmetry, we can significantly reduce the cost of evaluating the QAOA energy.

Quantum Physics

Adaptive Sampling Quasi-Newton Methods for Derivative-Free Stochastic Optimization

no code implementations29 Oct 2019 Raghu Bollapragada, Stefan M. Wild

We consider stochastic zero-order optimization problems, which arise in settings from simulation optimization to reinforcement learning.

reinforcement-learning Reinforcement Learning (RL) +1

Sequential Learning of Active Subspaces

no code implementations26 Jul 2019 Nathan Wycoff, Mickael Binois, Stefan M. Wild

In such cases, often a surrogate model is employed, on which finite differencing is performed.

Gaussian Processes

Bayesian optimization under mixed constraints with a slack-variable augmented Lagrangian

no code implementations NeurIPS 2016 Victor Picheny, Robert B. Gramacy, Stefan M. Wild, Sebastien Le Digabel

An augmented Lagrangian (AL) can convert a constrained optimization problem into a sequence of simpler (e. g., unconstrained) problems, which are then usually solved with local solvers.

Bayesian Optimization

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