Search Results for author: Bas van Stein

Found 13 papers, 6 papers with code

Deep-BIAS: Detecting Structural Bias using Explainable AI

1 code implementation4 Apr 2023 Bas van Stein, Diederick Vermetten, Fabio Caraffini, Anna V. Kononova

Recently, the BIAS toolbox was introduced as a behaviour benchmark to detect structural bias (SB) in search algorithms.

Explainable Artificial Intelligence (XAI)

DoE2Vec: Deep-learning Based Features for Exploratory Landscape Analysis

1 code implementation31 Mar 2023 Bas van Stein, Fu Xing Long, Moritz Frenzel, Peter Krause, Markus Gitterle, Thomas Bäck

We propose DoE2Vec, a variational autoencoder (VAE)-based methodology to learn optimization landscape characteristics for downstream meta-learning tasks, e. g., automated selection of optimization algorithms.

Feature Engineering Meta-Learning

Multi-surrogate Assisted Efficient Global Optimization for Discrete Problems

no code implementations13 Dec 2022 Qi Huang, Roy de Winter, Bas van Stein, Thomas Bäck, Anna V. Kononova

Decades of progress in simulation-based surrogate-assisted optimization and unprecedented growth in computational power have enabled researchers and practitioners to optimize previously intractable complex engineering problems.

Management

BBOB Instance Analysis: Landscape Properties and Algorithm Performance across Problem Instances

no code implementations29 Nov 2022 Fu Xing Long, Diederick Vermetten, Bas van Stein, Anna V. Kononova

Benchmarking is a key aspect of research into optimization algorithms, and as such the way in which the most popular benchmark suites are designed implicitly guides some parts of algorithm design.

Benchmarking

Deep Learning based pipeline for anomaly detection and quality enhancement in industrial binder jetting processes

no code implementations21 Sep 2022 Alexander Zeiser, Bas van Stein, Thomas Bäck

Anomaly detection describes methods of finding abnormal states, instances or data points that differ from a normal value space.

Anomaly Detection

Explainable Artificial Intelligence for Exhaust Gas Temperature of Turbofan Engines

no code implementations24 Mar 2022 Marios Kefalas, Juan de Santiago Rojo Jr., Asteris Apostolidis, Dirk van den Herik, Bas van Stein, Thomas Bäck

Data-driven modeling is an imperative tool in various industrial applications, including many applications in the sectors of aeronautics and commercial aviation.

Explainable artificial intelligence Symbolic Regression

Using Machine Learning to Detect Rotational Symmetries from Reflectional Symmetries in 2D Images

1 code implementation17 Jan 2022 Koen Ponse, Anna V. Kononova, Maria Loleyt, Bas van Stein

We demonstrate and analyze the performance of the extended algorithm to detect localised symmetries and the machine learning model to classify rotational symmetries.

BIG-bench Machine Learning Symmetry Detection

Emergence of Structural Bias in Differential Evolution

no code implementations10 May 2021 Bas van Stein, Fabio Caraffini, Anna V. Kononova

Heuristic optimisation algorithms are in high demand due to the overwhelming amount of complex optimisation problems that need to be solved.

Neural Network Design: Learning from Neural Architecture Search

1 code implementation1 Nov 2020 Bas van Stein, Hao Wang, Thomas Bäck

Neural Architecture Search (NAS) aims to optimize deep neural networks' architecture for better accuracy or smaller computational cost and has recently gained more research interests.

Benchmarking Image Classification +1

A Tailored NSGA-III Instantiation for Flexible Job Shop Scheduling

no code implementations14 Apr 2020 Yali Wang, Bas van Stein, Michael T. M. Emmerich, Thomas Bäck

A customized multi-objective evolutionary algorithm (MOEA) is proposed for the multi-objective flexible job shop scheduling problem (FJSP).

Job Shop Scheduling Scheduling

Automatic Configuration of Deep Neural Networks with EGO

1 code implementation10 Oct 2018 Bas van Stein, Hao Wang, Thomas Bäck

In this paper an Efficient Global Optimization (EGO) algorithm is adapted to automatically optimize and configure convolutional neural network architectures.

Data Augmentation Image Classification

Cluster-based Kriging Approximation Algorithms for Complexity Reduction

no code implementations4 Feb 2017 Bas van Stein, Hao Wang, Wojtek Kowalczyk, Michael Emmerich, Thomas Bäck

In addition, four Kriging approximation algorithms are proposed as candidate algorithms within the new framework.

regression

Local Subspace-Based Outlier Detection using Global Neighbourhoods

1 code implementation1 Nov 2016 Bas van Stein, Matthijs van Leeuwen, Thomas Bäck

In highly complex and high-dimensional data, however, existing methods are likely to overlook important outliers because they do not explicitly take into account that the data is often a mixture distribution of multiple components.

Fraud Detection Outlier Detection

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