Portrait of Bram van Es

Bram van Es

machine learner · computational physicist · open-source contributor

Building intelligent systems at the intersection of physics, language and data. Bridging academic research with real-world impact through open science and open code.


Who I am

I sit at the crossroads of physics and machine learning — using mathematical rigour to design models that actually work, and making them openly available for the community.

⚛️ Background

Trained as a computational physicist, I apply simulation, inference and probabilistic reasoning to hard real-world problems. Currently active in natural language processing and clinical AI at UMCU.

🔬 Interests

Technical areas I work in and care about:

NLP LLMs Bayesian methods Clinical AI Computational physics Open source Python PyTorch

🌍 Open Science

I believe research and tooling should be freely available. Pre-trained models, datasets and libraries I build are released publicly on GitHub and Hugging Face.

✍️ Communication

I write about machine learning, physics and their intersections on Medium to make complex ideas accessible to a wider audience.


Physics-trained, ML-focused

A concise view of the path from computational and statistical physics to machine learning for language and healthcare.

Profile

Experienced data scientist and machine learner with a PhD in applied mathematics and an MSc in aerospace engineering. I combine numerical modelling and scientific computing with applied AI for healthcare.

01Healthcare AI cardiovascular prediction, ECG models and biomarker discovery
02Language intelligence Dutch clinical language models, NER and information extraction
03Scientific computing numerical methods, simulation and anisotropic diffusion
  1. 2019–present · UMCU

    Clinical machine learning

    Lead developer of Argus for cardiovascular disease prediction, with additional work on ECG foundation models, multi-omics biomarker discovery and time-series clustering.

  2. 2019–present · clinical NLP

    Dutch medical language models

    Training language models from scratch and developing clinical NER, entity classification, embeddings and summarisation workflows for healthcare data.

  3. 2014–2019 · telecom & data science

    Machine learning in the telecom industry

    Applied machine learning and data science to network quality, customer experience, market segmentation, anomaly detection and operational decision-making at Tele2 and VEON.

  4. 2010–2014 · PhD

    Numerical methods for fusion plasma

    Research at CWI/FOM DIFFER on finite-volume and finite-difference methods for highly anisotropic diffusion in nuclear-fusion plasma simulations.

Toolkit
Python PyTorch NLP Transformers Bayesian inference Simulation Clinical AI Open science

Code & Models

Building from first principles: training Dutch medical language models from scratch, alongside NLP pipelines and general machine learning tooling.

bramiozo on GitHub
Repositories covering machine learning experiments, NLP tooling, computational physics simulations and data pipelines.
🤗
UMCU on Hugging Face
Dutch medical language models trained from scratch, plus NLP assets released by the Utrecht University Medical Center AI group.
🧩
Selected highlights
  • Applied ML — lead developer of Argus, an AI system for cardiovascular disease prediction, with work spanning ECG foundation models, multi-omics biomarker discovery and time-series clustering.
  • Clinical NLP — trained Dutch medical language models from scratch and developed clinical NER, entity-classification, embeddings and summarisation workflows.
  • Computational physics — PhD research on numerical methods for highly anisotropic diffusion in nuclear-fusion plasma simulations, including finite-volume and finite-difference schemes.

Research & Publications

Peer-reviewed work spanning clinical NLP, information extraction and computational methods. Full list on Google Scholar.

📄 View all publications on Google Scholar →

Public Discourse

Accessible articles on machine learning, AI and physics — bridging the gap between cutting-edge research and curious minds.