Applied Mathematics and Machine Learning
Research Group

News

2026 24. August
Bruno Viti and Hendrik Kleikamp contributed to a new preprint, written together with Dilara Kılınç from Budapest University of Technology and Economics, that is now available on arXiv under the title Robust lane-change intention anticipation under uncertainty based on a recursive Bayesian filtering approach. The work mainly emerged during a Short Term Scientific Mission of Dilara Kılınç at IDea_Lab from June 29 to July 10, which was supported by the InterCoML COST Action.
Dilara Kılınç visiting IDea_Lab < >
17. August Erion Morina is visiting the Cambridge Image Analysis Group of Prof. Carola-Bibiane Schönlieb at the Department of Applied Mathematics and Theoretical Physics, University of Cambridge, from August 17 to October 10, 2026. The research stay is funded by the "Visiting Award for High Potentials 2026", which he received from the University of Graz.
12. August
The working group went on a research retreat to Horní Věstonice, southern Czechia, to perform team building activities and discuss organizational matters.
Group photo during the partial solar eclipse < >
Group photo during a bike tour at the lake < >
29. July A new preprint on Data-Driven Model Order Reduction with pyMOR by Petar Mlinarić, Stephan Rave, Felix Schindler and Hendrik Kleikamp, is available on arXiv.
22. July
Matthias Höfler, Erion Morina and Hendrik Kleikamp presented their work at the World Congress on Computational Mechanics and the European Congress on Computational Methods in Applied Sciences and Engineering (WCCM-ECCOMAS) in Munich.
hoeflerm, morinae and kleikamph at WCCM-ECCOMAS 2026 < >
17. July
Erion Morina defended his PhD thesis on "Learning Nonlinear Differential-Equation-Based Models from Data". Congratulations!
morinae receiving a picture of the outside work activities < >
16. July
The preprint Overcoming slow Kolmogorov width decay in parametric optimal control via neural network surrogates, co-authored by Hendrik Kleikamp, is now available on arXiv. The paper originated during a visit of Dr. Juan Ricardo Muñoz at IDea_Lab in April this year, which was supported by the InterCoML COST Action.
Dr. Juan Ricardo Muñoz visiting IDea_Lab < >
10. July
Štěpán Zapadlo presented his work at the Foundations of Computational Mathematics (FoCM) in Vienna.
zapadlos with his poster at FoCM 2026 < >
zapadlos at FoCM 2026 < >
07. July Paul Brandstätter started as a new PhD student in the group. Welcome Paul!
19. June The article "On parameter identification in three-dimensional elasticity and discretisation with physics-informed neural networks" by Federica Caforio, Martin Holler, and Matthias Höfler was accepted in Inverse Problems.
18. June
The working group played a round of Disc Golf at Rosenhain in Graz.
Disc Golf round at Rosenhain < >
17. June pyMOR School 2026 is taking place at IDea_Lab from September 14 to September 18. Registration is open until August 24 and free of charge. See here for more information!
05. June
Matthias Höfler and Richard Huber joined the 12th international conference "Inverse Problems: Modeling and Simulation" in Malta and shared their research on physics-informed neural networks and discretizations in tomography, respectively.
huberr, hoeflerm, and other colleagues from University of Graz at IPMS 2026 < >
02. June
Erion Morina, Štěpán Zapadlo and Hendrik Kleikamp participated at the SIAM Conference on Optimization in Edinburgh and presented their research in three interesting talks.
morinae, zapadlos and kleikamph at SIAM Conference on Optimization 2026 < >
morinae, zapadlos and kleikamph at SIAM Conference on Optimization 2026 < >
04. May The article "Symbolic Recovery of PDEs from Measurement Data" by Erion Morina, Philipp Scholl and Martin Holler was accepted in Transactions on Machine Learning Research.
27. March
The workgroup played 3D black light mini golf in Gössendorf and had a great dinner afterwards.
3D black light mini golf < >
19. March The article "CONSIGN: Conformal Segmentation Informed by Spatial Groupings via Decomposition" by Bruno Viti and Martin Holler, was accepted at ICLR.
03. March The article "Determination of Range Conditions for General Projection Pair Operators" by Richard Huber, Rolf Clackdoyle and Laurent Desbat was accepted in Inverse Problems.
03. March Martin Holler joined the editorial board of the SIAM journal of Imaging Sciences.
24. February
At the end of an intense board game night with snacks, drinks and a lot of fun, Richard Huber was able to beat the whole working group in monopoly. Let's see who is going to win next time!
Snacks and drinks at the monopoly gaming night < >
Monopoly gaming night < >
Monopoly gaming night < >
17. February Erion Morina and Martin Holler uploaded their preprint on "Symbolic recovery of PDEs from measurement data", co-authored with Philipp Scholl, to arXiv.
13. February
Hendrik Kleikamp and Richard Huber participated in the Styrian Modelling Week -- a mathematical project week for high school students -- supervising students working on the topics 'Tournament Graphs' and 'Bridging the Abyss with Mathematics', respectively.
Particpants of the Modelling Week < >
Supervisors of the Modelling Week < >
Building Bridges group supervised by huberr < >
Tournament Graphs group supervised by kleikamph < >
11. February Martin Holler gave an Arqus JAI lecture on "The mathematics behind generative AI models in imaging".
22. January Richard Huber submitted his work "Systematic Analysis of Penalty-Optimised Illumination Design for Tomographic Volumetric Additive Manufacturing via the Extendable Framework TVAM AID Using the Core Imaging Library" to Additive Manufacturing, see the preprint on https://arxiv.org/abs/2602.12178.
19. January
Professor Leon Bungert from the University of Würzburg visited the group from January 19 to January 20, 2026, and gave an inspiring IDea_Lab lecture on "Robustness on the interface of geometry and probability". The slides of the presentation can be found here.
IDea_Lab lecture of Professor Leon Bungert < >
09. January A new version of the model order reduction Python library pyMOR is available. Hendrik Kleikamp contributed as a main developer to pyMOR 2025.2 by adding the vectorial kernel orthogonal greedy algorithm (VKOGA) and reductors for data-driven model order reduction using different machine learning methods.
2025 19. December
Erion Morina was awarded the Doctoral School Award 2025 by the "Doctoral School Mathematics and Scientific Computing in Graz" for the paper "On uniqueness in structured model learning". Congratulations!
Paper Award Picture < >
17. December Erion Morina and Martin Holler uploaded their preprint on "Physically consistent model learning for reaction-diffusion systems" to arXiv.
17. December
Martin Holler and Richard Huber attended the Finnish Inverse Days 2025 in Helsinki, presenting their work on "Exact Parameter Identification in PET Pharmacokinetic Modeling" and "The L2-Optimal Discretization of Tomographic Projection Operators".
hollerm and huberr at the Finnish Inverse Days 2025 < >
08. December Richard Huber published his article "Convergence of ray- and pixel-driven discretization frameworks in the strong operator topology" in the journal Inverse Problems and Imaging.
25. November Martin Holler gave a talk at the ÖAW Workshop ÖAW Workshop on Machine-Learning Assisted Image Reconstruction in Vienna.
20. November The Technology Impact Summit was happening in Graz, with many great talks on artificial intelligence and implications for industry and society.
17. November This week, Sascha Beutler from the Univeristy of Münster was visiting the workgroup, giving a talk and collaborating with Matthias Höfler, Hendrik Kleikamp and Martin Holler on motion estimation and correction in dynamic imaging.
14. November Richard Huber gave a talk at the Interdisciplinary Research Seminar "Mathematics meets Magnetic Resonance Imaging" organized by our Special Research Area (SFB).
29. October Matthias Höfler, Štěpán Zapadlo and Erion Morina participated in the COLIBRI PhD retreat near Mariazell.
29. October Richard Huber participated in the PICOF Conference in Hammamet in Tunisia presenting his research in the minisymposium on structured inverse source problems.
21. October Our Workgroup participated in an IDea_Lab-internal research workshop together with the groups of Jana Lasser and Markus Kneer.
18. October
The workgroup went for a trip to the Buschenschank Kieslinger in Kogelberg.
Group picture at the Buschenschank < >
17. October Martin Holler gave his inaugural lecture on "From Prior Knowledge to Posterior Insight: Probabilistic Models in Machine Learning" as part of the AI Innovation Day. Congratulations!
08. October Richard Huber submitted the article "Determination of Range Conditions for General Projection Pair Operators" to Inverse Problems, see the preprint on https://arxiv.org/abs/2510.07480.
03. October
Erion Morina, Hendrik Kleikamp, Matthias Höfler, Štěpán Zapadlo and Richard Huber participated in the EUCCO and AAIP conferences in Klagenfurt to present their research.
Group picture at EUCCO 2025 < >
24. September Several members of the workgroup attended the status seminar of the SFB "Mathematics of Reconstruction in Dynamical and Active Models" in Leibnitz.
01. September Martin Holler, Erion Morina and Richard Huber participated in the ENUMATH conference in Heidelberg, presenting their research and organizing the mini symposium "MS03 Learning PDE-Based Models from Data".
15. July The workgroup participated in a workshop on "Remote Development using Docker and PyCharm" by Shabab Bazrafkan.
09. July
The workgroup had a group retreat in Donnersbachwald to get to know each other and to discuss several organizational issues.
Group picture rafting tour < >
Group picture hiking < >
04. July Some members of our group took part in a meeting of the SFB "Mathematics of Reconstruction in Dynamical and Active Models" and a tour in the MRI Lab @ TU Graz.