
Dr.-Ing. Siming Bayer
Chair of Computer Science 5 (Pattern Recognition)
Visiting researchers
Contact
- Since 11/2019: Researcher at Pattern Recognition Lab, Department of Computer Science, Friedrich-Alexander University
- 01/2015 to 10/2019: Doctoral Researcher at Pattern Recognition Lab, Department of Computer Science, Friedrich-Alexander University in collaboration with Siemens Healthineers AG
- 09/2016 to 12/2016: Researcher at Molecular Imaging Lab, Department of Biomedical Engineering, Peking University
- 10/2009 t0 09/2015: Student at Friedrich-Alexander University (B.Sc and M.Sc Biomedical Engineering)
2025
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Erforschung und Entwicklung von hybriden Netzmodellen
(Third Party Funds Group – Sub project)
Overall project: Hybride Netzmodelle als Basis für den optimalen Betrieb von Fernwärmenetzen
Project leader:
Term: September 1, 2025 - August 31, 2028
Acronym: Hyb_Mod_Net
Funding source: Bundesministerium für Wirtschaft und Energie (BMWE)
2024
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Coordinated grid protection based on machine learning methods
(Third Party Funds Single)
Project leader: , ,
Term: July 1, 2024 - June 30, 2027
Acronym: Netzschutz-KI
Funding source: DFG-Einzelförderung / Sachbeihilfe (EIN-SBH) -
Teilvorhaben: KI gestütztes Engpassmanagement und Netzwiederaufbau
(Third Party Funds Group – Sub project)
Overall project: GridAssist - Assistenzsysteme für eine optimierte automatisierte Systemführung in Verteilnetzen
Project leader: , , ,
Term: December 1, 2024 - November 30, 2027
Acronym: GridAssist
Funding source: Bundesministerium für Wirtschaft und Energie (BMWE)TP3: Automated Optimal System Management in MS/HS Networks & Network Restoration
AP 3.1: Automated Bottleneck and Fault Management Based on Machine Learning Methods
AP 3.2: Stable Grid and Supply Restoration
TP5: Competence Team for Interfaces and Databases
AP 5.1: Creation of a Knowledge Database for Heterogeneous Power Grid Data Sources
Automated Grid Management and Restoration through AI and Data Integration
The increasing complexity and volatility of modern power grids necessitate intelligent, automated systems for optimal operation and rapid restoration. In TP3, we develop AI-driven solutions for automated bottleneck and fault management (AP 3.1) as well as stable and systematic grid restoration (AP 3.2) in medium- and high-voltage (MS/HS) networks. These systems leverage machine learning techniques—ranging from supervised and unsupervised learning to reinforcement learning—with a hybrid training approach incorporating domain knowledge via Physics-Informed Neural Networks (PINNs) and Known-Operator Learning. This ensures reliable, explainable decision-making in real-time operations and minimizes data requirements in safety-critical environments.
In bottleneck management, predictive and event-triggered AI models autonomously suggest topology adjustments and flexibility deployment, factoring in a wide range of grid constraints and operational targets. Fault management employs multi-source data analysis for real-time fault detection, location, isolation, and resupply, utilizing both existing sensors and proposed novel measurements. For restoration, a dedicated assistance system is developed using a two-stage training process: supervised learning of standardized grid restoration procedures followed by reinforcement learning in a high-fidelity simulation environment. A single-agent model competes across simulation instances to evolve optimized strategies for power system recovery.
To support these applications, TP5 (AP 5.1) establishes a unified graph-based knowledge database for integrating heterogeneous data sources—from GIS, SCADA, and metering systems—into a cohesive representation. This structure enables complex system queries and machine-readable context for AI models, forming the backbone of advanced operational analytics.
The entire system architecture and algorithms are tested in AP 6.3 through a hybrid field test utilizing real-time simulation with OPAL-RT and live grid snapshots from Lechwerke’s control center. Assistance systems interface with the simulation via standard protocols, ensuring vendor-independent implementation and practical transferability. Experienced grid operators validate the system in realistic operational conditions, ensuring alignment with the requirements of future grid operations and energy transition goals.
2023
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Artificial Intelligent as a Market Participant – Implications for Antitrust Law
(FAU Funds)
Project leader:
Term: January 15, 2023 - January 14, 2024Introduction: Antitrust laws (also known ascompetition laws) are designed to encourage strong competition and are designedto protect consumers from predatory commercial practices. The primary goals ofantitrust law are to ensure the functioning of the markets and to ensure faircompetition. A prominent example of an antitrust violation is illegal pricefixing. By definition, it is an agreement between competitors that fixes pricesor other competitive conditions, and thus violates the principle of the pricingmechanism through free market forces. A typical feature of illegal price fixingis verifiable communication (written or verbal) between human marketparticipants. However, in the age of artificial intelligence and e-commerce,the definition and the detection of this illegal practice faces new challengesas collusive behaviors that violate antitrust laws, such as the pricingmechanism, can be partially or fully automated [1]. Furthermore, thecommunications between market participants can be both overt and covert. Finally,market participants can be artificial agents which might affected by perverseinstantiation [2]. In other words, new technological possibilities areavailable to disguise illegal pricing policies and business practices.
Recent research, mainly from theeconomic and jurisprudence point of view, concludes the intensive applicationof AI algorithms in E-commerce will increase the extend of known forms ofanticompetitive behaviors [3][4]. However, the questions regarding whether andto which extent collusive behaviors will emerge by AI itself (which is anunknown form of anticompetitive behaviors) are rarely understood. Feasibilitystudies and comprehensive analysis comprising the implementation of AI methods andvalidation of the derived hypothesis has not been conducted so far. Therefore,the main goals of this project are to investigate the possibilities of collusivebehaviors stimulated and/or emerged by AI algorithms on digital marketplace andderive consequences on the antitrust law as well as competition policies. Tothe best of our knowledge, this is the first time that a research project inthe field of Antitrust and AI (AAI) is focusing on the mathematical andalgorithmic perspective of the question to which extend the utilization of AImethods is facilitating the collusive behaviors in the era of digital economy.
Objectives: In order to validate the hypothesesthat AI algorithms is able to develop and communicate collusive behaviors ondigital marketplaces both in overt and covert fashion, comprehensive emulatorsof online marketplaces in different setups will be implemented. Furthermore, different communication channels(both overt and covert) of digital marketplaces will be discovered and understood,as it is highly relevant to the detection of collusive practices. Finally, differentonline trading scenarios utilizing AI algorithms will be established and theimpact on antitrust law and competition polices will be derived. In total, the mainaspects in the intended DFG-application can be summarized as follows:
1. Asthe research topic belongs to a highly interdisciplinary field, a comprehensiveliterature review is necessary to define the problem space of the research andis of great importance to conduct the subsequent experiments successfully.Therefore, a comprehensive literature review on the aspects of antitrust law, gametheory, artificial intelligence and cyber security will be conducted.
2. Firststep of the implementation is the holistic emulation of the digitalmarketplace. The market emulator should have the capability to emulate the digitalmarket following various rules (e.g., Cournot vs. collusive competition) indifferent size (i.e., with different amount of market participants). Moreover,state-of-the-art algorithms for dynamic pricing should be replicated andintegrated into the market emulator as well.
3. Afurther aspect of this project is the communication mechanism in the era of E-commerceand AI. The know form of collusions mostly utilize overt communications.However, covert communication channels (i.e., communication channels that are notoriginally designed for the communication purpose, therefore hardly to bedetected [5][6]) poses further vulnerabilities of online marketplaces. The mechanismsand capacities of covert channels facilitating the collusive behaviors (e.g.,illegal price fixing) as should be investigated with the implemented marketemulator.
4. Finally,artificial agents for price definition of different products should be proposedand implemented following different competition models as well as marketcomplexities, aiming at understanding the central research questions of thisresearch project, i.e., capabilities and conditions of emerging collusivebehaviors of artificial agents by themselves. This particular step can beachieved by using reinforcement learning techniques. Technical opportunitiesand challenges for the discrimination of collusive and non-collusive behaviorsthat are potentially emerged by the artificial agents should be explored aswell.
The entire project will besupervised by experts from three disciplines. Prof. Jochen Hoffmann (chair of Private Business Law) will support this research project with his knowledges and expertiseon antitrust law, Prof. Felix Feilling (chair of Cyber Security) will advise onthe aspects that are related to covert communication and cyber security, andProf. Andreas Maier (pattern recognition lab) will mentor this project from theAI point of view.
[1] KünstlicheIntelligenz als Marktteilnehmer – Technische Möglichkeiten, Maier A., Bayer S.,Mohr Verlag. Submitted, unpublished.
[2] BostromN. Superintelligence: Paths, Dangers, Strategies. Minds & Machines 25, Seite 285–289 (2015).
[3] Petit, N. Antitrust andartificial intelligence: A research agenda. In: Journal of European CompetitionLaw and Practice. Vol. 8, Issue 6, pp. 361–362. Oxford University Press.(2017)
[4] Beneke, F., Mackenrodt, M.,Remedies for algorithmic tacit collusion, Journal of Antitrust Enforcement,Volume 9, Issue 1, Pages 152–176 (2021).
[5]Hans-Georg Eßer, Felix C. Freiling. Kapazitätsmessung eines verdecktenZeitkanals über HTTP, Univ. Mannheim,Technischer Bericht TR-2005-10, November 2005. (2005)
[6] Freiling F.C., Schinzel S.Detecting Hidden Storage Side Channel Vulnerabilities in NetworkedApplications. In: Camenisch J., Fischer-Hübner S., Murayama Y., Portmann A.,Rieder C. (eds) Future Challenges in Security and Privacy for Academia andIndustry. SEC 2011. IFIP Advances in Information and Communication Technology,vol 354. Springer, Berlin, Heidelberg. (2011)
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AI-refined thermo-hydraulic model for the improvement of the efficiency and quality of water supply
(Third Party Funds Single)
Project leader: ,
Term: November 1, 2023 - October 31, 2026
Acronym: OptiHyd
Funding source: Bayerisches Staatsministerium für Wirtschaft, Landesentwicklung und Energie (StMWi) (seit 2018)The United Nations' goals for sustainable development have made improving quality of life and access to clean drinking water a political priority. However, in recent decades, the water cycle in Bavaria has also been significantly affected by climate change. Two important aspects of daily drinking water supply and distribution are the assurance of water quality and the increase in usage efficiency. To enhance the resilience and capacity of the water supply in general, numerical simulation, data integration, and artificial intelligence (AI) are necessary. In this project, we aim to develop an AI-refined temperature-hydraulic model using heterogeneous data sources from a Bavarian water supply network. Hybrid AI methods are employed to model the complex relationship between water and soil temperature. The resulting model will serve as the basis for various real applications such as leak detection, anomaly recognition, and monitoring of drinking water quality, with the overarching goal of increasing the efficiency and quality of the water supply while simultaneously contributing to the containment of the impact of climate change on drinking water supply
2021
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UtilityTwin
(Third Party Funds Group – Overall project)
Project leader: , ,
Term: September 1, 2021 - August 31, 2024
Acronym: UtilityTwin
Funding source: Bayerisches Staatsministerium für Wirtschaft, Landesentwicklung und Energie (StMWi) (seit 2018)In the UtilityTwin research project, an intelligent digital twin for any energy or water supply network is to be researched and developed on the basis of adaptive high-resolution sensor data (down to the sub-second range) and machine learning techniques. Overall, the technology concepts BigData and AI are to be combined in an innovative way in this research project in order to make positive contributions to the implementation of the energy transition and to counteract climate change.
2016
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Intraoperative brain shift compensation and point-based vascular registration
(Non-FAU Project)
Project leader: ,
Term: May 1, 2016 - October 31, 2019
2026
Journal Articles
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Early Detection of DMA-Level Leaks in Water Networks Using Robust Regression Ensemble Framework
In: Water 18 (2026), Article No.: 563
ISSN: 2073-4441
DOI: 10.3390/w18050563
BibTeX: Download - , , , , , :
A deep learning framework for heat demand forecasting using time–frequency representations of decomposed features
In: Energy and AI (2026), Article No.: 100704
ISSN: 2666-5468
DOI: 10.1016/j.egyai.2026.100704
BibTeX: Download
Conference Contributions
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Robust AI-Based Chest Radiograph Classification Without Prior Task Training via Improved Vision-Language Alignment
European Congress of Radiology (Vienna, March 4, 2026 - March 8, 2026)
In: European Society of Radiologists, ESR: 2026
DOI: https://dx.doi.org/10.26044/ecr2026/C-12946
BibTeX: Download - , , , , , , , :
Physics-informed GNN for medium-high voltage AC power flow with edge-aware attention and line search correction operator
In: 2026 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Barcelona, Spain: 2026
URL: https://arxiv.org/abs/2509.22458
BibTeX: Download - , , , , , , , :
LSTT: Latent Spatio-Temporal Transformer for Non-rigid Motion Compensation in CBCT
1st International Workshop on Reconstruction and Imaging Motion Estimation, RIME 2025, and 7th International Workshop on Graphs in Biomedical Image Analysis, GRAIL 2025, held in conjunction with the 28th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2025 (Daejeon, September 27, 2025 - September 27, 2025)
In: Lina Felsner, Thomas Küstner, Andreas Maier, Chen Qin, Seyed-Ahmad Ahmadi, Anees Kazi, Xiaoling Hu (ed.): Lecture Notes in Computer Science 2026
DOI: 10.1007/978-3-032-06103-4_8
BibTeX: Download
Unpublished Publications
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Feature Selection for Fault Prediction in Distribution Systems
(2026)
DOI: 10.48550/arXiv.2603.25274
BibTeX: Download - , , , , , , :
Robustness Evaluation of Machine Learning Models for Fault Classification and Localization in Power System Protection (Conference contribution, accepted)
20th International Conference on Developments in Power System Protection (DPSP 2026) (London, UK, March 2, 2026 - March 6, 2026)
DOI: 10.48550/arXiv.2512.15385
BibTeX: Download
2025
Journal Articles
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A self-supervised multimodal deep learning approach to differentiate post-radiotherapy progression from pseudoprogression in glioblastoma
In: Scientific Reports 15 (2025), Article No.: 17133
ISSN: 2045-2322
DOI: 10.1038/s41598-025-02026-7
BibTeX: Download - , , , , , , :
Deep learning-based classification of coronary arteries and left ventricle using multimodal data for autonomous protocol selection or adjustment in angiography
In: Scientific Reports 15 (2025), Article No.: 15186
ISSN: 2045-2322
DOI: 10.1038/s41598-025-99651-z
BibTeX: Download - , , , , , , :
A Scoping Review of Machine Learning Applications in Power System Protection and Disturbance Management
In: International Journal of Electrical Power & Energy Systems Volume 172 (2025), Article No.: 111257
ISSN: 0142-0615
DOI: 10.1016/j.ijepes.2025.111257
URL: https://www.sciencedirect.com/science/article/pii/S0142061525008051
BibTeX: Download - , , , , , :
Attention-guided erasing for enhanced transfer learning in breast abnormality classification
In: International Journal of Computer Assisted Radiology and Surgery (2025)
ISSN: 1861-6410
DOI: 10.1007/s11548-024-03317-6
BibTeX: Download - , , , , , , , , , :
EAGLE: an edge-aware gradient localization enhanced loss for CT image reconstruction
In: Journal of Medical Imaging 12 (2025), Article No.: 014001
ISSN: 2329-4310
DOI: 10.1117/1.JMI.12.1.014001
BibTeX: Download
Conference Contributions
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Impact of Data Sparsity on Machine Learning for Fault Detection in Power System Protection
33rd European Signal Processing Conference (EUSIPCO 2025) (Palermo, September 8, 2025 - September 12, 2025)
In: 2025 33rd European Signal Processing Conference (EUSIPCO) 2025
URL: https://ieeexplore.ieee.org/document/11226584
BibTeX: Download - , , , , :
Impact of Training Dataset Size for ML Load Flow Surrogates
Oberlausitzer Energiesymposium 2025 & Zittauer Energieseminar (Zittau, November 25, 2025 - November 26, 2025)
DOI: 10.48550/arXiv.2509.22458
BibTeX: Download - , , , , :
A Graph Neural Network-Based Approach for Power System Protection
IEEE Kiel PowerTech (Kiel, June 29, 2025 - July 3, 2025)
In: PowerTech 2025, Kiel: 2025
DOI: 10.1109/PowerTech59965.2025.11180650
URL: https://ieeexplore.ieee.org/document/11180650
BibTeX: Download - , , , , :
MM-DETR: Emulating the Diagnostic Clinical Workflow in Multi-view Multi-modal Mammography Mass Detection
MICCAI Deep Breath Workshop (Daejeon, South Korea, September 23, 2025 - September 27, 2025)
In: Artificial Intelligence and Imaging for Diagnostic and Treatment Challenges in Breast Care 2025
DOI: 10.1007/978-3-032-05559-0_26
URL: https://link.springer.com/chapter/10.1007/978-3-032-05559-0_26
BibTeX: Download - , , , , , , , , , , :
Exemplar Med-DETR: Toward Generalized and Robust Lesion Detection in Mammogram Images and Beyond
MICCAI (Daejeon, September 23, 2025 - September 27, 2025)
In: 28th International Conference of Medical Image Computing and Computer Assisted Intervention – MICCAI 2025
DOI: 10.1007/978-3-032-04978-0_20
URL: https://link.springer.com/chapter/10.1007/978-3-032-04978-0_20#chapter-info
BibTeX: Download - , , , , :
Water Demand Forecasting of District Metered Areas through Learned Consumer Representations
The 33rd European Signal Processing Conference (EUSIPCO 2025) (Palermo, Italy, September 8, 2025 - September 12, 2025)
In: Water Demand Forecasting of District Metered Areas through Learned Consumer Representations 2025
URL: https://eusipco2025.org/wp-content/uploads/pdfs/0001842.pdf
BibTeX: Download - , , :
Digitization Framework of Water Utility Documents for Digital Twins
21st International Computing & Control in the Water Industry Conference (Sheffield, United Kingdom, September 1, 2025 - September 3, 2025)
In: Digitization Framework of Water Utility Documents for Digital Twins 2025
BibTeX: Download - , , , , , , :
Learning Wavelet-Sparse FDK for 3D Cone-Beam CT Reconstruction
International Conference on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine (, May 27, 2025 - May 30, 2025)
BibTeX: Download - , , , , :
Unsupervised Clustering for Fault Analysis in High-Voltage Power Systems Using Voltage and Current Signals
Fault and Disturbance Analysis Conference (Atlanta, GA, May 5, 2025 - May 6, 2025)
In: Fault and Disturbance Analysis Conference 2025 2025
DOI: 10.48550/arXiv.2505.17763
BibTeX: Download - , , , , , :
Verification of neural network based power system protection schemes
19th IET Conference on Developments in Power System Protection (DPSP Europe 2025) (Bilbao, April 1, 2025 - April 3, 2025)
DOI: 10.1049/icp.2025.1062
BibTeX: Download - , , , , , , :
A Systematic Evaluation of Machine Learning Methods for Fault Detection and Line Identification in Electrical Power Grids
ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (Hyderabad, April 6, 2025 - April 11, 2025)
In: ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), New York City: 2025
DOI: 10.1109/ICASSP49660.2025.10890544
BibTeX: Download - , , , :
Link Prediction on Water Distribution Networks using Graph Neural Networks
21st International Computing & Control in the Water Industry Conference (Sheffield, September 1, 2025 - September 3, 2025)
In: Link Prediction on Water Distribution Networks using Graph Neural Networks <


