Welcome to my site
I started building this site for two reasons. First of all, because I like trying something new and it had been years since I last toyed around with website building. Secondly, because I wanted a place where I could share my academic interests with the rest of the world. I am well aware that I will probably not reach a lot of people, but even if nobody reads my blogs, it still makes for a nice place to write up stuff for myself and find out what I still do not fully understand.
I am using MathJax to typeset all equations so as to obtain a nice LateX feel. As a test, the Dirac action on a general spin manifold should be nicely rendered here:
\[S_\text{Dirac}[\psi] := \int_M \bar{\psi}(i/\!\!\!\partial-m)\psi\,\mathrm{Vol}_M\,.\]However, not all operators or packages are implemented in MathJax, so it is possible that certain formulas do not look as clean as they would when using ordinary $\LaTeX$.
Research projects
- Structured conformal prediction for partially observed data
- A metric interpretation of popular nonconformity scores
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The abstract nonsense of conformal prediction:
Super cool update! When I was writing and defending my PhD dissertation, I had some intuition about why category theory might have been useful for conformal prediction, but I had no clue whether this would eventually lead to something. However, on October 1st, 2025, I attended a SIPTA seminar on the paper The Joys of Categorical Conformal Prediction by M. Caprio. In this paper, the author rephrases an essential part of conformal prediction in a categorical way!
- Hierarchical side-information for clusterwise conformal prediction: A continuation of the last chapter in my PhD thesis.
Pinned posts
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Frieze patterns, quantum information theory and group cohomology
In 2019, I successfully defended my Master’s thesis on matrix product states and symmetry-protected phases topological phases (see here). Now, almost 5 years later, I think it is the perfect time to write down a (short) introduction and overview of what I did during my thesis and how it relates to various fields of science.
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Public PhD Defense (Ongoing)
This post contains the content of my PhD defense, together with some extra information and (personal) ideas for further work.
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Cournot and the frequentist's secret
This post contains the content of a talk, titled “Cournot and the frequentist’s secret”, that I gave for the Statistics Discussion Group at the Faculty of Bioscience Engineering (UGent). This topic arose in a very natural way during my research on conformal prediction, since two of the most influential researchers in the field of conformal prediction are the very same people that have written most of the recent papers on Cournot’s principle (Vladimir Vovk and Glenn Shafer).
Recent posts
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Game development
A story about childhood dreams, a love for software development and some funky mathematics. For the people who have read my other posts on modal type theory and quantum logic, this post will also contain type theory and monads. 😁
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This Month's Read IV: Ghosts, jets and other shenigans (Ongoing)
“This month’s read” will cover some interesting, but fascinating concepts in field theory and the calculus of variations. Most physicists have encountered the notion of (Faddeev–Popov) ‘ghost’ at some point or another in there carreer and might have thought “What in the world is this? Do we really need this?” On the other hand, science aficionados might have encountered that same term in (popular) science news, where it is often depicted as some mysterious and magical thing. This post aims to clear up some of the mystery and explain why these objects are ‘necessary’ for a rigorous mathematical treatment of the subject.
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This Month's Read III: Electric-magnetic duality
The previous “This month’s read” posts were about probability theory and (quantum) logic. This month’s post will cover something completely different: electromagnetism (and some generalizations). Although we have experimentally discovered only electric charges (magnetic fields are generated by moving or ‘spinning’ electric charges), the laws of electromagnetism exhibit a variety of beautiful symmetries and duality relations when we introduce magnetic charges as well!
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Climbing in Fontainebleau
As tradition requires, we went bouldering in the woods of Fontainebleau. This time, our group counted over ten people!