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Chair of Visual Computing

The Visual Computing Group focuses on computer vision and machine learning. One of our main areas of research is the automated development of neural networks. Our goal is to determine how such networks can be made more efficient while remaining robust in the face of image noise. We are also exploring new approaches to better understand how neural networks make decisions—and how these processes can be brought closer to human decision-making.

Visual Computing

Our Research Profile

Development of efficient machine learning approaches for various tasks in the field of computer vision.

Our group's research focuses on machine learning and computer vision methods, with an emphasis on:

  • Efficient search for neural architectures

    We focus on advancing the automated design and optimization of neural networks to reduce manual trial-and-error processes through efficient search strategies. Our group develops acceleration methods—often using predictive models—to explore extensive search spaces and minimize costly evaluations, thereby optimizing the path to high-performance architectures.

     

  • Parameter Generation and Transfer Learning

    Our research extends transfer learning beyond traditional pre-trained weights to the generation of network parameters from learned distributions and the use of large language models. We aim to improve the efficiency and adaptability of neural networks across various domains while carefully considering the number of parameters and resource constraints.

     

  • Improving the Robustness of Neural Networks

    An important aspect of our research is improving the robustness of neural networks against image noise and other disturbances that can lead to incorrect predictions. We investigate strategies such as emphasizing object recognition and controlling frequency distortions in network weights to reduce vulnerabilities and strengthen the reliability of the models.

Research Focus

  • Automated Design of Neural Architectures
  • Robustness of deep learning models
  • Object re-identification
  • Efficiency of neural networks
  • Joint hardware-software optimization (Learning2Sense)
  • Learning and generating weights

 

Courses

Courses

We offer the following courses:

  • Automated Machine Learning (Summer Semester)
  • Digital Image Processing (Summer Semester)
  • Deep Learning Practicum (Winter Semester)
  • Unsupervised Deep Learning (Winter Semester)

 

Master’s and Bachelor’s Theses

If you are interested in writing a bachelor’s or master’s thesis or joining a project group with us, please feel free to contact us. The following list contains only a small selection of the topics currently offered by our group. Please contact us for further topics and additional information. Your own ideas and interests are also welcome. Please note that we do not supervise external projects that require signing a non-disclosure agreement. 

  • Alexander Auras:
    • NAS for Inverse Problems 
  • Penelope Natusch:
    • Robustness Predictions
    • Object Re-Identification

Publications

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Conference paper
2025

Can we talk models into seeing the world differently?

Conference paper
2025

Transferrable Surrogates in Expressive Neural Architecture Search Spaces

Journal article
2025

An Evaluation of Zero-Cost Proxies - from Neural Architecture Performance Prediction to Model Robustness

Conference paper
2024

Implicit Representations for Constrained Image Segmentation

Conference paper
2024

Surprisingly Strong Performance Prediction with Neural Graph Features

Book chapter
2024

An Evaluation of Zero-Cost Proxies - From Neural Architecture Performance Prediction to Model Robustness

Conference paper
2023

Neural Architecture Design and Robustness: A Dataset

Other
2023

Improving Native CNN Robustness with Filter Frequency Regularization

Book chapter
2022

Learning Where to Look – Generative NAS is Surprisingly Efficient

Conference paper
2022

Surrogate NAS Benchmarks: Going Beyond the Limited Search Spaces of Tabular NAS Benchmarks

Conference paper
2021

Smooth Variational Graph Embeddings for Efficient Neural Architecture Search

Book chapter
2021

Neural Architecture Performance Prediction Using Graph Neural Networks

Current Research Projects

KiwiSiwi Logo
Tree

KIWI@SIWI

KIWI@SIWI is a project focused on detecting bison using AI technology. The goal is to use this technology to better identify the animals and thereby support herd management. The project is being carried out by the University of Siegen and NanoGiant GmbH. It has received funding from the NEXT.IN.NRW funding program. 

Portait Jovita Lukasik

Jun.-Prof. Dr. Jovita Lukasik

Chair holder

I am the head of the Visual Computing Group at the University of Siegen since September 2025.  Before becoming the head of the Visual Computing Group, I did my PhD with Margret Keuper at the University of Mannheim in 2023.

 

SarahWagener

Sarah Christine Wagener M.A.

Secretariat

I'm the Secretary of the Computergraphics&Multimedia Systems Group, the Computer Vision Group, the Visual Computing Group and I'm also responsible for the Prorectorate RIC (Andreas Kolb).

Alexander Auras

Alexander Auras M.Sc.

Research assistant

I’m a PhD student and research associate at the groups for Computer Vision and Visual Computing. My research concerns the usage of machine learning approaches for inverse problems in imaging, with a focus on hybrid methods.

Foto einer Frau

Penelope Natusch

Research assistant

I am a PhD student at the Visual Computing group. My research focuses on object re-identification and robustness-prediction.

Personal profile photo

Kıvanç Tezören

Wissenschaftlicher Mitarbeiter
Ulrich Schipper

Dipl.-Inform. Ulrich Schipper

Technical employee

Contact the Working Group

Postal address

University of Siegen
Visual Computing Group
Hölderlinstraße 3
57076 Siegen

Visitor address

University of Siegen
Visual Computing Group
H-A Level 7
Room: H-A 7107
57076 Siegen

Secretariat

Secretary: Sarah Wagener
Phone: +49 (0)271 / 740-3315

Room: H-A 7107
Email: sarah-chr.wagener@uni-siegen.de