New paper with @davidleeftink.bsky.social and @marcelvangerven.bsky.social! A very interesting insight connects theoretical optimal control with practical deep RL. Check it out!

@marcelvangerven.bsky.social · 3mo ago

Proud to share a new pre-print by @davidleeftink.bsky.social and with @maxhinne.bsky.social. We make a formal connection between the Pontryagin minimum principle and deep recurrent reinforcement learning, improving performance on challenging control tasks! arxiv.org/pdf/2605.05373

“Het volk is het zat!!!” Ondertussen:

Please spread as far as you can. My thread of very very stupid questions. Is there something like hugging face for chemical simulations ? I e things like DFT force fields in MD etc ?

Very happy to share David's new work on Bayesian optimization for laser dicing processes in semiconductor manufacturing, now out in Control Engineering Practice! www.sciencedirect.com/science/arti...

Automated discovery of laser dicing processes with Bayesian optimization for semiconductor manufacturing

Laser dicing of semiconductor wafers is a critical step in microelectronic manufacturing, where multiple sequential laser passes precisely separate in…

sciencedirect.com

David Leeftink@davidleeftink.bsky.social · 4mo ago

How can Bayesian optimization enable the discovery of complex laser processes in semiconductor manufacturing?

If you are a PhD student in cognitive science, psychology or linguistics, come visit us in Potsdam! We have short fellowships available for this year (deadline is in two weeks). Shoot me an email if you are interested. Here is the call: linguistlist.org/issues/36/38...

LINGUIST List 36.3850 Internships: Cognitive Science, General Linguistics, Language Acquisition, Neurolinguistics, Psycholinguistics: 3- to 4-month Fellowships at the University of Potsdam, CRC1287 L...

The LINGUIST List, International Linguistics Community Online.

linguistlist.org

Opbouw naar aanloop van de grote HO staking is begonnen - tot op de Dam! Buildup for the HE strike at Dam square - see you in a bit! @aob.nl @fnv.bsky.social @lsvb.bsky.social @universiteitennl.bsky.social @0pointseven.akademienl.social.ap.brid.gy @hetpnn.nl #stopdesloop

Proud to share a preprint by Hester Huijsdens, and with Linda Geerligs, on frequentist and Bayesian methods for testing for dynamic brain connectivity! Check it out here: arxiv.org/abs/2512.01513

Proud to share a new pre-print by @davidleeftink.bsky.social and with @marcelvangerven.bsky.social on Bayesian optimization for automatic laser dicing in semiconductor manufacturing! arxiv.org/abs/2511.23141

Wat mij het meest raakt in dit heftige verhaal over de meest zieke long covid patiënten is de genoemde tien gevallen van euthanasie. Zelfs heb ik als mede long covid patiënt met name in de eerste jaren van mijn ziekte, toen nog op Twitter, veel energie gestopt.. www.volkskrant.nl/kijkverder/v...

667 dagen in het donker: hoe postcovidpatiënten uit de maatschappij verdwenen

Ze leven achter gesloten gordijnen, aan bed gekluisterd. Voor de allerziekste postcovidpatiënten in Nederland is er nog steeds geen passende hulp of zicht op genezing. Vier van hen gunden ons een blik...

volkskrant.nl

Just published in JOSS: 'Bamojax: Bayesian Modelling with JAX' https://doi.org/10.21105/joss.08642

Bamojax (Bayesian modelling with JAX) v0.3.10 is out! Next to increased support for distributions and bijectors, several marginal likelihood estimators are now available, such as bridge sampling and truncated harmonic mean estimation (THAMES). Check it out on github.com/UncertaintyI...!

GitHub - UncertaintyInComplexSystems/bamojax: Bayesian Modelling using Jax

Bayesian Modelling using Jax. Contribute to UncertaintyInComplexSystems/bamojax development by creating an account on GitHub.

github.com

Very proud on David Leeftink's first PhD thesis paper on optimal control of probabilistic dynamics models! Check it out here: arxiv.org/abs/2504.02543

David Leeftink@davidleeftink.bsky.social · 11mo ago

Our recent paper “Optimal Control of Probabilistic Dynamics Models via Mean Hamiltonian Minimization,” has been accepted to CDC 2025! We demonstrate how applying optimal control principles can significantly improve planning in deep model-based reinforcement learning with epistemic uncertainty.

After five years of confused staring at Greek letters, it is my absolute pleasure to finally share our (with @smfleming.bsky.social) computational model of mental imagery and reality monitoring: Perceptual Reality Monitoring as Higher-Order inference on Sensory Precision ✨ osf.io/preprints/ps...

Na een lange en chaotische avond, stemde de Tweede Kamer voor de asielwetten van minister Faber. Het wordt zélfs strafbaar om ongedocumenteerde mensen te helpen met onderdak, een maaltijd of kleding. Help ons dit beleid tegen te houden, teken én deel de petitie: groenlinkspvda.nl/petitie/stop...

Teken de petitie: Stop de asielwetten | GroenLinks-PvdA

Stop de asielwetten! Deze wetten van het kabinet Wilders-Yesilgöz zijn asociaal, onverantwoord en onmenselijk. Teken de petitie en hou ze tegen.

groenlinkspvda.nl

I am in downtown Los Angeles right now and it is completely surreal to hear that Trump is sending Marines here. We are listening to mariachi music. People have dogs. There are teenagers here. It is utterly and completely peaceful. Please tell your friends.

Job Alert! Two PhD positions in the Probabilistic Graphical Models group of the @DondersInst at @RadboudU. Both PhDs are part of the ELSA lab on Legal, Regulatory, and Policy Aspects of Clinical Decision Support Systems. 1/8

🎉 Effects of climate protests by scientists paper published! Our findings suggest that scientists can engage in public protest without compromising their credibility, but that such actions alone may have less impact than one would like to believe: royalsocietypublishing.org/doi/10.1098/...

My lab is looking for a PhD candidate, in collaboration with ​Bernhard Englitz​'s lab. www.ru.nl/en/working-a...

"...for every £1 of public money invested into UK universities, £14 of economic benefit is generated" www.universitiesuk.ac.uk/latest/news/...

New report reveals key role universities play in boosting growth and productivity across the UK

The higher education sector contributes more than £265 billion to the UK economy.

universitiesuk.ac.uk

Long COVID advocates and researchers in the United States have done the extraordinary. After a bruising battle, they managed to revive some of the research grants cancelled by the administration of President Donald Trump. https://go.nature.com/3RKg5tP

Long COVID activists fought Trump team’s research cuts and won ― for now

Success gives hope to scientists and advocates who managed to get millions of dollars in grants restored.

go.nature.com

David Leeftink's first PhD thesis work is now available on arXiv! Probabilistic Pontryagin's Maximum Principle for Continuous-Time Model-Based Reinforcement Learning, check it out!

@marcelvangerven.bsky.social · last yr.

New preprint out! arxiv.org/abs/2504.02543

Join us in Amsterdam for the 11th Model-Based Neuroscience & Cognition Summer School. Gain a solid foundation in Bayesian evidence-accumulation modeling and explore its integration with neuroscience or advanced computational frameworks, including reinforcement-learning models. modelbasedneurosci.com

Model-Based Neuroscience and Cognition Summer School

Visit the post for more.

modelbasedneurosci.com

My tutorial on Sequentual Monte Carlo for psychology and behavioural science is out now in Behavior Research Methods! Check it out at link.springer.com/article/10.3...

An introduction to Sequential Monte Carlo for Bayesian inference and model comparison—with examples for psychology and behavioral science - Behavior Research Methods

Bayesian inference is becoming an increasingly popular framework for statistics in the behavioral sciences. However, its application is hampered by its computational intractability – almost all Bayesi...

link.springer.com

🧵 Introducing *bamojax* v0.1 --- Bayesian Modelling in JAX! https://github.com/uncertaintyincomplexsystems/bamojax