Search Results for author: Artur Souza

Found 7 papers, 3 papers with code

BaCO: A Fast and Portable Bayesian Compiler Optimization Framework

1 code implementation1 Dec 2022 Erik Hellsten, Artur Souza, Johannes Lenfers, Rubens Lacouture, Olivia Hsu, Adel Ejjeh, Fredrik Kjolstad, Michel Steuwer, Kunle Olukotun, Luigi Nardi

We introduce the Bayesian Compiler Optimization framework (BaCO), a general purpose autotuner for modern compilers targeting CPUs, GPUs, and FPGAs.

Compiler Optimization

$π$BO: Augmenting Acquisition Functions with User Beliefs for Bayesian Optimization

1 code implementation23 Apr 2022 Carl Hvarfner, Danny Stoll, Artur Souza, Marius Lindauer, Frank Hutter, Luigi Nardi

To address this issue, we propose $\pi$BO, an acquisition function generalization which incorporates prior beliefs about the location of the optimum in the form of a probability distribution, provided by the user.

Bayesian Optimization Hyperparameter Optimization

$\pi$BO: Augmenting Acquisition Functions with User Beliefs for Bayesian Optimization

no code implementations ICLR 2022 Carl Hvarfner, Danny Stoll, Artur Souza, Luigi Nardi, Marius Lindauer, Frank Hutter

To address this issue, we propose $\pi$BO, an acquisition function generalization which incorporates prior beliefs about the location of the optimum in the form of a probability distribution, provided by the user.

Bayesian Optimization Hyperparameter Optimization

Prior-guided Bayesian Optimization

no code implementations28 Sep 2020 Artur Souza, Luigi Nardi, Leonardo Oliveira, Kunle Olukotun, Marius Lindauer, Frank Hutter

While Bayesian Optimization (BO) is a very popular method for optimizing expensive black-box functions, it fails to leverage the experience of domain experts.

Bayesian Optimization

Bayesian Optimization with a Prior for the Optimum

no code implementations25 Jun 2020 Artur Souza, Luigi Nardi, Leonardo B. Oliveira, Kunle Olukotun, Marius Lindauer, Frank Hutter

We show that BOPrO is around 6. 67x faster than state-of-the-art methods on a common suite of benchmarks, and achieves a new state-of-the-art performance on a real-world hardware design application.

Bayesian Optimization

DeepFreak: Learning Crystallography Diffraction Patterns with Automated Machine Learning

1 code implementation26 Apr 2019 Artur Souza, Leonardo B. Oliveira, Sabine Hollatz, Matt Feldman, Kunle Olukotun, James M. Holton, Aina E. Cohen, Luigi Nardi

In this paper, we introduce a new serial crystallography dataset comprised of real and synthetic images; the synthetic images are generated through the use of a simulator that is both scalable and accurate.

AutoML BIG-bench Machine Learning +1

DiffraNet: Automatic Classification of Serial Crystallography Diffraction Patterns

no code implementations27 Sep 2018 Artur Souza, Leonardo B. Oliveira, Sabine Hollatz, Matt Feldman, Kunle Olukotun, James M. Holton, Aina E. Cohen, Luigi Nardi

In this paper, we introduce a new serial crystallography dataset generated through the use of a simulator; the synthetic images are labeled and they are both scalable and accurate.

AutoML Classification

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