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Dr. rer. nat.

Christian Johannes Gölz

Postdoc @ LMU Hospital · Medical AI · Privacy-Preserving Computing

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About

I build machine learning systems that turn physiological signals and medical images into clinical intelligence.

As a Postdoc at LMU University Hospital Munich, my research centers on machine learning for clinical signals and images: representation learning on ECG, wearables, and coronary angiography; LLM systems for structured extraction and quality appraisal in clinical research; benchmarking, validation, and explainability of time-series models; and privacy-preserving computation across institutions.

Dr. rer. nat. (summa cum laude); doctoral research in computational neuroscience. Interdisciplinary background in engineering, medicine, and sport science.

Research Focus

Perceive

Representation learning on clinical signals and images: self-supervised video models on coronary angiography, ECG foundation model adaptation, and multimodal wearable biosignals (ECG, PPG, EDA, accelerometry) for seizure detection and prediction

Trustworthy

Systems whose certainty and reasoning can be checked: benchmarking and validation against clinical references, explainability for time-series models, systematic evidence appraisal, and privacy-preserving computation across institutions (SMPC, federated computing)

Communicate (in progress)

LLMs as a communication and reasoning layer over perception models, literature, and clinical tools — following a propose–verify–approve pattern already piloted in LLM-assisted evidence workflows

Open Source Projects

A selection of recent work — more on GitHub

Publication Code

Experience

Oct 2023 – Present

Postdoctoral Researcher — AI-Based Telemonitoring

LMU University Hospital Munich

Sep – Dec 2022

Visiting Scientist — DAAD Fellow

Universidad Francisco de Vitoria & Hospital Universitario La Paz, Madrid

Apr 2018 – Jul 2023

Research Associate

Paderborn University, Institute of Sports Medicine

Sep 2016 – Apr 2018

Student Research Assistant

Paderborn University, Institute of Sports Medicine

Education

Dr. rer. nat.
Sport Science
Paderborn University · 2024 · Summa Cum Laude
Doctoral research in computational neuroscience — EEG-based neural decoding and machine-learning analysis of brain activity. Thesis: Decoding the Functional Reorganization of the Aging Brain.
M.Sc.
Movement and Technology
Karlsruhe Institute of Technology (KIT) · 2018 · Grade 1.3
B.A.
Applied Sport Sciences
Paderborn University · 2014

Selected Publications

  1. Goelz, C., Sams, L., Idakwo, V. O., Moehrle, P., Freyer, L., Rizas, K., & Vieluf, S.

    Toward clinical-grade deep learning in coronary angiography: a systematic review

    Under review at npj Digital Medicine

  2. Goelz, C., Schlichtiger, J., Lang, S., Brunner, S., & Vieluf, S. (2026)

    Challenges in the application of ECG foundation models to out-of-domain populations: an evaluation in professional athletes

    EHJ – Digital Health, 7(Suppl. 1), ztaf143.017

    DOI
  3. Ballhausen, H., ..., Goelz, C., et al. (2024)

    Privacy-friendly evaluation of patient data with secure multiparty computation in a European pilot study

    npj Digital Medicine, 7(1), 280

    DOI
  4. Goelz, C., Vieluf, S., & Ballhausen, H. (2024)

    A Secure Median Implementation for the Federated Secure Computing Architecture

    Appl. Sci., 14(17), 7891

    DOI
  5. Goelz, C., Reuter, E.-M., et al. (2023)

    Classification of age groups and task conditions provides additional evidence for differences in electrophysiological correlates of inhibitory control across the lifespan

    Brain Inform, 10(1), 11

    DOI
  6. Gaidai, R.*, Goelz, C.*, et al. (2022) [*Shared first]

    Classification characteristics of fine motor experts based on electroencephalographic and force tracking data

    Brain Res, 1792, 148001

    DOI
  7. Goelz, C., Mora, K., et al. (2021)

    Classification of visuomotor tasks based on electroencephalographic data depends on age-related differences in brain activity patterns

    Neural Netw, 142

    DOI

Selected Talks

  • 2025 Challenges in the application of ECG foundation models to out-of-domain populations ESC Digital Health / AI Summit, Berlin
  • 2025 Collaboration without data sharing: the Federated Secure Computing architecture deRSE25, Karlsruhe
  • 2024 Machine learning approaches to study signatures of age-related brain alterations Colloquium, Universidad Francisco de Vitoria, Madrid
  • 2024 Decoding the aging brain Seminar Series AI and Data Science, LMU Munich

Technical Skills

Languages

Python Bash MATLAB C

ML / DL

PyTorch Scikit-learn SciPy NumPy MNE-Python MLflow

LLM Engineering

Self-hosted LLM Services (vLLM, Ollama) Multi-step Pipeline Design Structured Outputs & Validation Retrieval & Embeddings LLM Evaluation & Human-in-the-loop QC

Infrastructure

SLURM Docker Singularity Git HPC