Search Results for author: Lennart Schäpermeier

Found 4 papers, 4 papers with code

HPO X ELA: Investigating Hyperparameter Optimization Landscapes by Means of Exploratory Landscape Analysis

1 code implementation30 Jul 2022 Lennart Schneider, Lennart Schäpermeier, Raphael Patrick Prager, Bernd Bischl, Heike Trautmann, Pascal Kerschke

We identify a subset of BBOB problems that are close to the HPO problems in ELA feature space and show that optimizer performance is comparably similar on these two sets of benchmark problems.

Hyperparameter Optimization

To Boldly Show What No One Has Seen Before: A Dashboard for Visualizing Multi-objective Landscapes

1 code implementation29 Nov 2020 Lennart Schäpermeier, Christian Grimme, Pascal Kerschke

Simultaneously visualizing the decision and objective space of continuous multi-objective optimization problems (MOPs) recently provided key contributions in understanding the structure of their landscapes.

One PLOT to Show Them All: Visualization of Efficient Sets in Multi-Objective Landscapes

1 code implementation20 Jun 2020 Lennart Schäpermeier, Christian Grimme, Pascal Kerschke

Therefore, we build on the GFH approach but apply a new technique for approximating the location of locally efficient points and using the divergence of the multi-objective gradient vector field as a robust second-order condition.

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