Filed 3 patent applications and owned dataset/model licensing compliance — including identifying a licensing issue tainting training data and derived models, and driving a full re-annotation remediation.
Designed a multi-camera 3D pose auto-annotation pipeline: cross-camera association, uncertainty-weighted triangulation in JAX, and optimisation-based temporal filtering. Over 95% of frames met or exceeded human annotation quality on many sequences.
Patched YOLO26 and RTMO to expose per-keypoint uncertainty at inference; calibrated raw outputs to pixel-scale errors for downstream 3D reconstruction.
Built an internal MLOps platform over PostgreSQL — deterministic, cached, distributed component execution powering annotation, evaluation, and training-data pipelines.
Owned pose-model training end-to-end: custom dataset loaders, augmentations, and fine-tuning for production conditions.
Built full-stack internal tools (Python + Svelte): a multi-camera ArUco calibration tool (sub-cm accuracy at 5–10 m, patent filed) and a microservice orchestration manager UI.
Co-maintained core infrastructure as one of two go-to engineers: PostgreSQL, Docker, GitHub Actions, Grafana, and MLflow.
Tracked CV/ML literature and presented internal deep-dives on pose estimation, tracking, and monocular 3D methods.
Edit layperson summaries of peer-reviewed research for clarity and style.
Pivoted from pure to applied mathematics ~2 years in. Thesis on low-rank tensor methods, randomized linear algebra, and applications to machine learning.
Published 5 papers; 3 accompanied by open-source Python libraries (computational algebra, numerical linear algebra, and machine learning).
Taught 3 courses per year as an assistant, receiving consistent positive feedback from students.
2018/03—2022/12
PhD in Applied Mathematics
|
University of Geneva
2015—2018
Msc. Mathematical Sciences
|
Utrecht University (cum laude)
2012—2015
Bsc. Mathematics and Physics & Astronomy (double degree)
|
Utrecht University (cum laude)
Streaming Tensor Train Approximation
published in
SIAM Journal on Scientific Computing
joined work with
Bart Vandereycken and Daniel Kressner
TTML: tensor trains for general supervised machine learning
joined work with
Bart Vandereycken
On certain Hochschild cohomology groups for the small quantum group
published in
Journal of Algebra
joined work with
Nicolas Hemelsoet
A computer algorithm for the BGG resolution
published in
Journal of Algebra
joined work with
Nicolas Hemelsoet
Parallel 2-transport and 2-group torsors
2021/02
Neuroscience and Neuroimaging Specialization
|
John Hopkins University (Coursera certificate )
2020/09
Genomic Datascience Specialization
|
John Hopkins University (Coursera certificate )
2019/08
Advanced Machine Learning Specialization
|
Higher School of Economics (Coursera certificate )
Rik Voorhaar © 2026