Search Results for author: Jaehoon Koo

Found 7 papers, 2 papers with code

Transfer-Learning-Based Autotuning Using Gaussian Copula

2 code implementations9 Jan 2024 Thomas Randall, Jaehoon Koo, Brice Videau, Michael Kruse, Xingfu Wu, Paul Hovland, Mary Hall, Rong Ge, Prasanna Balaprakash

We introduce the first generative TL-based autotuning approach based on the Gaussian copula (GC) to model the high-performing regions of the search space from prior data and then generate high-performing configurations for new tasks.

Transfer Learning

ytopt: Autotuning Scientific Applications for Energy Efficiency at Large Scales

1 code implementation28 Mar 2023 Xingfu Wu, Prasanna Balaprakash, Michael Kruse, Jaehoon Koo, Brice Videau, Paul Hovland, Valerie Taylor, Brad Geltz, Siddhartha Jana, Mary Hall

As we enter the exascale computing era, efficiently utilizing power and optimizing the performance of scientific applications under power and energy constraints has become critical and challenging.

Bayesian Optimization

HPC Storage Service Autotuning Using Variational-Autoencoder-Guided Asynchronous Bayesian Optimization

no code implementations3 Oct 2022 Matthieu Dorier, Romain Egele, Prasanna Balaprakash, Jaehoon Koo, Sandeep Madireddy, Srinivasan Ramesh, Allen D. Malony, Rob Ross

Distributed data storage services tailored to specific applications have grown popular in the high-performance computing (HPC) community as a way to address I/O and storage challenges.

Bayesian Optimization Transfer Learning

Customized Monte Carlo Tree Search for LLVM/Polly's Composable Loop Optimization Transformations

no code implementations10 May 2021 Jaehoon Koo, Prasanna Balaprakash, Michael Kruse, Xingfu Wu, Paul Hovland, Mary Hall

The search space exposed by the transformation pragmas is a tree, wherein each node represents a specific combination of loop transformations that can be applied to the code resulting from the parent node's loop transformations.

Inverse Classification with Limited Budget and Maximum Number of Perturbed Samples

no code implementations29 Sep 2020 Jaehoon Koo, Diego Klabjan, Jean Utke

In this study, we propose a new framework to solve inverse classification that maximizes the number of perturbed samples subject to a per-feature-budget limits and favorable classification classes of the perturbed samples.

Classification General Classification

Improved Classification Based on Deep Belief Networks

no code implementations25 Apr 2018 Jaehoon Koo, Diego Klabjan

For better classification generative models are used to initialize the model and model features before training a classifier.

Classification General Classification

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