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Maximilian Krahn
I am a PhD student at Imperial College London, co-supervised by Dr. Björn Schuller and Dr. Tolga Birdal.
My research is on geometric and topological deep learning and on generative models — spectral operators for graphs and higher-order structures, and diffusion and flow matching for discrete and scientific domains, with applications from quantum computing to imaging.
I am currently a research intern at Quantinuum, working on quantum error correction. Feel free to drop me an email if you are interested.
Email  / 
Scholar  / 
Github  / 
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Experience
- [06/2026 - 09/2026] Research Intern at Quantinuum, London, UK, working on fault-tolerant state preparation for quantum error correction.
- [05/2025 - 10/2025] Summer Research Intern at Huawei Camera Lab in Tampere, Finland, working on efficient neural frontends for SPAD image restoration.
- [06/2024 - 08/2024] Summer Quantum Student at Los Alamos National Laboratory, USA.
- [08/2023 - 12/2023] Visiting Student Researcher at KAUST, Saudi Arabia in Prof. Peter Wonka's lab working on 3D neural representation.
- [10/2022 - 12/2022] Research Assistant at Aalto University, Finland in Vesa Hirvisalo's lab working on Reinforcement Learning methods.
- [06/2022 - 08/2022] Summer Research Intern at École Polytechnique in Maks Ovsjanikov's lab working on graph diffusion methods.
- [08/2021 - 09/2021] Research Intern at CYENS Centre of Excellence, Cyprus working on auditing social biases in commercial image-tagging services.
- [08/2020 - 07/2021] Research Assistant at MPI-Inf in Dr. Vladislav Golyanik's group working on Quantum Computer Vision algorithms.
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Collapsed Effective Operators for Higher-order Structures
Krahn M*,
Bastian L.*,
Garg V.,
Schuller B.,
Birdal T.
(* denotes shared first author) ICML, 2026
project page
A vertex-level spectral operator that condenses higher-order topology via Schur complementation of a graded Laplacian
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Projected Stochastic Gradient Descent with Quantum Annealed Binary Gradients
Krahn M,
Sasdelli M.,
Yang F,
Golyanik V.,
Kannala J.,
Chin T.,
Birdal T.
BMVC, 2024
project page
A quantum annealer deployable optimiser for binary neural networks
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Scheduling conditional task graphs with deep reinforcement learning
Debner A.,
Krahn M,
Hirvisalo V.
NLDL, 2024
code
A reinforcement learning based scheduler for conditional task graphs
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TIDE: Time Derivative Diffusion for Deep Learning on Graphs
Behmanesh M*,
Krahn M*,
Ovsjanikov M.
(* denotes shared first author) ICML, 2023
code
A new graph neural network architecture based on time derivative diffusion for node classification
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QuAnt: Quantum Annealing with Learnt Couplings
Benkner, M. S.,
Krahn M.,
Tretschk, E.,
Lähner, Z.,
Moeller, M. ,
Golyanik V.
ICLR, 2023 as spotlight (top 20%)
project website
A deep learning framework to learn QUBO representations for computer vision problems
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Shifting our Awareness, Taking Back Tags: Temporal Changes in Computer Vision Services' Social Behaviors
Barlas P., Krahn M., Kleanthous S., Kyriakou K., Otterbacher J.
ICWSM, 2022
A study of biases of commercially available image tagging services
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Convex Joint Graph Matching and Clustering via Semidefinite Relaxations
Krahn M,
Bernard F.,
Golyanik V.
3DV, 2021
project page
A SDP formulation for joint graph matching and clustering
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Academic Services
- Conference Reviewer
- NeurIPS: 2022, 2023, 2025, 2026
- ICML: 2025, 2026
- ICLR: 2025, 2026
- CVPR: 2023, 2024
- ICCV: 2023
- ICWSM: 2021
- Supervision
- Co-supervisor of an MSc research project at Imperial College London (2026)
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