no code implementations • 3 May 2024 • Moritz Herrmann, F. Julian D. Lange, Katharina Eggensperger, Giuseppe Casalicchio, Marcel Wever, Matthias Feurer, David Rügamer, Eyke Hüllermeier, Anne-Laure Boulesteix, Bernd Bischl
We warn against a common but incomplete understanding of empirical research in machine learning (ML) that leads to non-replicable results, makes findings unreliable, and threatens to undermine progress in the field.
no code implementations • 28 Feb 2024 • Lasai Barreñada, Paula Dhiman, Dirk Timmerman, Anne-Laure Boulesteix, Ben van Calster
For the case studies, risk estimates were visualised using heatmaps in a 2-dimensional subspace.
no code implementations • 23 Oct 2023 • Roman Hornung, Malte Nalenz, Lennart Schneider, Andreas Bender, Ludwig Bothmann, Bernd Bischl, Thomas Augustin, Anne-Laure Boulesteix
Our findings corroborate the concern that standard resampling methods often yield biased GE estimates in non-standard settings, underscoring the importance of tailored GE estimation.
1 code implementation • 8 Feb 2023 • Roman Hornung, Frederik Ludwigs, Jonas Hagenberg, Anne-Laure Boulesteix
Frequently, however, in the training data and the data to which automatic prediction rules should be applied, the test data, the different omics data types are not available for all patients.
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 • 7 Mar 2020 • Moritz Herrmann, Philipp Probst, Roman Hornung, Vindi Jurinovic, Anne-Laure Boulesteix
The Kaplan-Meier estimate and a Cox model using only clinical variables were used as reference methods.
1 code implementation • 3 Dec 2018 • Lukas M. Weber, Wouter Saelens, Robrecht Cannoodt, Charlotte Soneson, Alexander Hapfelmeier, Paul Gardner, Anne-Laure Boulesteix, Yvan Saeys, Mark D. Robinson
In computational biology and other sciences, researchers are frequently faced with a choice between several computational methods for performing data analyses.
1 code implementation • 10 Apr 2018 • Philipp Probst, Marvin Wright, Anne-Laure Boulesteix
In a benchmark study on several datasets, we compare the prediction performance and runtime of tuneRanger with other tuning implementations in R and RF with default hyperparameters.
2 code implementations • 26 Feb 2018 • Philipp Probst, Bernd Bischl, Anne-Laure Boulesteix
Firstly, we formalize the problem of tuning from a statistical point of view, define data-based defaults and suggest general measures quantifying the tunability of hyperparameters of algorithms.
1 code implementation • 16 May 2017 • Philipp Probst, Anne-Laure Boulesteix
The number of trees T in the random forest (RF) algorithm for supervised learning has to be set by the user.
no code implementations • 30 Oct 2013 • Mathias Fuchs, Roman Hornung, Riccardo De Bin, Anne-Laure Boulesteix
Thus, it has minimal variance among all unbiased estimators and is asymptotically normally distributed.