Search Results for author: Alexander Asteroth

Found 11 papers, 6 papers with code

Efficient Quality Diversity Optimization of 3D Buildings through 2D Pre-optimization

1 code implementation28 Mar 2023 Alexander Hagg, Martin L. Kliemank, Alexander Asteroth, Dominik Wilde, Mario C. Bedrunka, Holger Foysi, Dirk Reith

For a use case to design buildings that minimize wind nuisance, we show that we can predict flow features around 3D buildings from 2D flow features around building footprints.

Designing Air Flow with Surrogate-assisted Phenotypic Niching

no code implementations10 May 2021 Alexander Hagg, Dominik Wilde, Alexander Asteroth, Thomas Bäck

In complex, expensive optimization domains we often narrowly focus on finding high performing solutions, instead of expanding our understanding of the domain itself.

Expressivity of Parameterized and Data-driven Representations in Quality Diversity Search

1 code implementation10 May 2021 Alexander Hagg, Sebastian Berns, Alexander Asteroth, Simon Colton, Thomas Bäck

We consider multi-solution optimization and generative models for the generation of diverse artifacts and the discovery of novel solutions.

Discovering Representations for Black-box Optimization

1 code implementation9 Mar 2020 Adam Gaier, Alexander Asteroth, Jean-Baptiste Mouret

Our second insight is that this representation can be used to scale quality diversity optimization to higher dimensions -- but only if we carefully mix solutions generated with the learned representation and those generated with traditional variation operators.

Modeling User Selection in Quality Diversity

no code implementations16 Jul 2019 Alexander Hagg, Alexander Asteroth, Thomas Bäck

The initial phase in real world engineering optimization and design is a process of discovery in which not all requirements can be made in advance, or are hard to formalize.

Prototype Discovery using Quality-Diversity

no code implementations25 Jul 2018 Alexander Hagg, Alexander Asteroth, Thomas Bäck

An iterative computer-aided ideation procedure is introduced, building on recent quality-diversity algorithms, which search for diverse as well as high-performing solutions.

Dimensionality Reduction

Data-Efficient Design Exploration through Surrogate-Assisted Illumination

2 code implementations15 Jun 2018 Adam Gaier, Alexander Asteroth, Jean-Baptiste Mouret

Design optimization techniques are often used at the beginning of the design process to explore the space of possible designs.

Data-efficient Neuroevolution with Kernel-Based Surrogate Models

1 code implementation15 Apr 2018 Adam Gaier, Alexander Asteroth, Jean-Baptiste Mouret

Surrogate-assistance approaches have long been used in computationally expensive domains to improve the data-efficiency of optimization algorithms.

Evolving Parsimonious Networks by Mixing Activation Functions

no code implementations21 Mar 2017 Alexander Hagg, Maximilian Mensing, Alexander Asteroth

Neuroevolution methods evolve the weights of a neural network, and in some cases the topology, but little work has been done to analyze the effect of evolving the activation functions of individual nodes on network size, which is important when training networks with a small number of samples.

Data-Efficient Exploration, Optimization, and Modeling of Diverse Designs through Surrogate-Assisted Illumination

4 code implementations13 Feb 2017 Adam Gaier, Alexander Asteroth, Jean-Baptiste Mouret

The MAP-Elites algorithm produces a set of high-performing solutions that vary according to features defined by the user.

Efficient Exploration

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