Search Results for author: Timo M. Deist

Found 7 papers, 4 papers with code

Multi-Objective Learning to Predict Pareto Fronts Using Hypervolume Maximization

1 code implementation8 Feb 2021 Timo M. Deist, Monika Grewal, Frank J. W. M. Dankers, Tanja Alderliesten, Peter A. N. Bosman

We discuss and illustrate why training processes to approximate Pareto fronts need to optimize on fronts of individual training samples instead of on only the front of average losses.

Multi-objective Optimization by Uncrowded Hypervolume Gradient Ascent

3 code implementations9 Jul 2020 Timo M. Deist, Stefanus C. Maree, Tanja Alderliesten, Peter A. N. Bosman

On several bi-objective benchmarks, we find that gradient-based algorithms outperform the tested EAs by obtaining a better hypervolume with fewer evaluations whenever exact gradients of the multiple objective functions are available and in case of small evaluation budgets.

Optimization and Control

Towards Realistic Optimization Benchmarks: A Questionnaire on the Properties of Real-World Problems

no code implementations14 Apr 2020 Koen van der Blom, Timo M. Deist, Tea Tušar, Mariapia Marchi, Yusuke Nojima, Akira Oyama, Vanessa Volz, Boris Naujoks

This work aims to identify properties of real-world problems through a questionnaire on real-world single-, multi-, and many-objective optimization problems.

An End-to-end Deep Learning Approach for Landmark Detection and Matching in Medical Images

2 code implementations21 Jan 2020 Monika Grewal, Timo M. Deist, Jan Wiersma, Peter A. N. Bosman, Tanja Alderliesten

We tested the approach on 22, 206 pairs of 2D slices with varying levels of intensity, affine, and elastic transformations.

Computed Tomography (CT)

Simulation assisted machine learning

1 code implementation15 Feb 2018 Timo M. Deist, Andrew Patti, Zhaoqi Wang, David Krane, Taylor Sorenson, David Craft

When sufficient system details are not known, one typically turns to machine learning, which builds a black-box model of the system using a large dataset of input sample features and outputs.

BIG-bench Machine Learning

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