no code implementations • 1 Dec 2023 • John D. Lee, Jakob Richter, Martin R. Pfaller, Jason M. Szafron, Karthik Menon, Andrea Zanoni, Michael R. Ma, Jeffrey A. Feinstein, Jacqueline Kreutzer, Alison L. Marsden, Daniele E. Schiavazzi
The substantial computational cost of high-fidelity models in numerical hemodynamics has, so far, relegated their use mainly to offline treatment planning.
no code implementations • 15 Jun 2022 • Florian Karl, Tobias Pielok, Julia Moosbauer, Florian Pfisterer, Stefan Coors, Martin Binder, Lennart Schneider, Janek Thomas, Jakob Richter, Michel Lang, Eduardo C. Garrido-Merchán, Juergen Branke, Bernd Bischl
Hyperparameter optimization constitutes a large part of typical modern machine learning workflows.
no code implementations • 13 Jul 2021 • Bernd Bischl, Martin Binder, Michel Lang, Tobias Pielok, Jakob Richter, Stefan Coors, Janek Thomas, Theresa Ullmann, Marc Becker, Anne-Laure Boulesteix, Difan Deng, Marius Lindauer
Most machine learning algorithms are configured by one or several hyperparameters that must be carefully chosen and often considerably impact performance.
1 code implementation • 29 Mar 2018 • Patrick Schratz, Jannes Muenchow, Eugenia Iturritxa, Jakob Richter, Alexander Brenning
Results show that GAM and RF (mean AUROC estimates 0. 708 and 0. 699) outperform all other methods in predictive accuracy.
4 code implementations • 9 Mar 2017 • Bernd Bischl, Jakob Richter, Jakob Bossek, Daniel Horn, Janek Thomas, Michel Lang
We present mlrMBO, a flexible and comprehensive R toolbox for model-based optimization (MBO), also known as Bayesian optimization, which addresses the problem of expensive black-box optimization by approximating the given objective function through a surrogate regression model.
no code implementations • 18 Sep 2016 • Julia Schiffner, Bernd Bischl, Michel Lang, Jakob Richter, Zachary M. Jones, Philipp Probst, Florian Pfisterer, Mason Gallo, Dominik Kirchhoff, Tobias Kühn, Janek Thomas, Lars Kotthoff
This document provides and in-depth introduction to the mlr framework for machine learning experiments in R.