Search Results for author: Daniel Horn

Found 6 papers, 1 papers with code

RODD: Robust Outlier Detection in Data Cubes

no code implementations14 Mar 2023 Lara Kuhlmann, Daniel Wilmes, Emmanuel Müller, Markus Pauly, Daniel Horn

We propose a general type of test data and examine all methods in a simulation study.

Outlier Detection

Using Sequential Statistical Tests for Efficient Hyperparameter Tuning

no code implementations23 Dec 2021 Philip Buczak, Andreas Groll, Markus Pauly, Jakob Rehof, Daniel Horn

Hyperparameter tuning is one of the the most time-consuming parts in machine learning.

Random boosting and random^2 forests -- A random tree depth injection approach

no code implementations13 Sep 2020 Tobias Markus Krabel, Thi Ngoc Tien Tran, Andreas Groll, Daniel Horn, Carsten Jentsch

A Monte Carlo simulation, in which tree-shaped data sets with different numbers of final partitions are built, suggests that there are several scenarios where \emph{Random Boost} and \emph{Random$^2$ Forest} can improve the prediction performance of conventional hierarchical boosting and random forest approaches.

A First Analysis of Kernels for Kriging-based Optimization in Hierarchical Search Spaces

no code implementations3 Jul 2018 Martin Zaefferer, Daniel Horn

Many real-world optimization problems require significant resources for objective function evaluations.

Evolutionary Algorithms

mlrMBO: A Modular Framework for Model-Based Optimization of Expensive Black-Box Functions

4 code implementations9 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.

Bayesian Optimization regression +1

Fast model selection by limiting SVM training times

no code implementations10 Feb 2016 Aydin Demircioglu, Daniel Horn, Tobias Glasmachers, Bernd Bischl, Claus Weihs

Kernelized Support Vector Machines (SVMs) are among the best performing supervised learning methods.

Model Selection

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