Leiv Rønneberg
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ltronneberg.bsky.social
Leiv Rønneberg
@ltronneberg.bsky.social
Postdoctoral fellow @ University of Oslo (back home in 🏔️🇳🇴🏔️), Bayesian stats (high-dimensional, nonparametric, ML), biostatistics, computation. Previously @ MRC Biostatistics Unit, University of Cambridge 🇬🇧
autodiff is cool and all, but have you tried manually computing the gradient to avoid too many variables on the autodiff tape..??? (screenshot of me trying to avoid autodiffing through large Gram matrices)
October 27, 2025 at 8:17 PM
Reposted by Leiv Rønneberg
I'm looking for a Doctoral Researcher (PhD student) to work with me on simulation-based inference at Data Science Research Centre, Tampere University Check the link for details and send an application before October 10th.

tuni.rekrytointi.com/paikat/?o=A_...
Doctoral Researcher (simulation-based inference) / Väitöskirjatutkija (simulaatio-pohjainen päättely)
tuni.rekrytointi.com
September 1, 2025 at 6:51 AM
Playing around plotting some chemical structure embeddings coming from a VAE, and colouring by local intrinsic dimension looks almost like these colour blind test images.
July 3, 2025 at 7:40 AM
«– Når det ikkje er nokon risiko for å bli avslørt, og inga form for straff for å lyge, ventar vi frå standard økonomisk teori at alle skulle ha loge, seier Bjorvatn.»

Økonom overrasket at folk flest ikke tenker som økonomer
Éin av fire er villig til å lyge for ein tusenlapp
­
www.nrk.no
May 30, 2025 at 7:49 AM
Reposted by Leiv Rønneberg
JOBS ALERT! PhD position & 3-y postdoc position in statistics within my research group at @ocbe.bsky.social @uio.no
Both are linked to a project funded from the Research Council of Norway on Integrative Bayesian clustering for high-dim data in omics

Deadline: 13 June 2025

More info & links below!
May 27, 2025 at 8:00 PM
Glad to see this happening! I never understood why UK dads were not marching in the street already when I saw that my UK employer only offered *two weeks* paternity leave. Coming from Norway I had to trade in a minimum 4 months leave for a measly two weeks -- time with my daughter I won't get back.
British men urged to join ‘Dad strike’ calling for more paternity leave
Exclusive: Fathers planning protest with babies in London on 11 June to highlight UK’s ‘rubbish’ statutory leave, least generous in Europe
www.theguardian.com
May 2, 2025 at 8:12 PM
Working on a model involving some GP regression, coupled with a horseshoe prior for variable selection. In an attempt at counting the number of effective parameters of my model, the following quantity pops out quite naturally. Is this a well known quantity? 1/2
February 3, 2025 at 8:17 PM
Second call for the DSTrain Postdoctoral programme @uio.no is up! The university is hiring 18 postdocs across 9 research areas and over 60 loosely defined projects.

Come work on Bayesian machine learning with us in beautiful Oslo

Deadline April 6th, please share!
DSTrain - dScience – Centre for Computational and Data Science
DSTrain is a 5-year postdoctoral programme that will award 36 postdoctoral fellowship positions of 36 months each in two calls over the programme period within the overarching frame of data science. T...
www.uio.no
January 13, 2025 at 12:15 PM
Klassisk økonomfjas. Det er ikke modellene våre eller måleinstrumentene det er noe galt med — folk lider av «fantomfattigdom» borsen.dagbladet.no/nyheter/nord...
December 26, 2024 at 10:20 AM
Great department, great group, great city!
Want to do a postdoc in Oslo? We're seeking candidates for a four year postdoc position in causal inference/time-to-event analysis.

Application deadline is January 31. See below for more information and feel free to take contact if you have any questions! www.jobbnorge.no/en/available...
Four year postdoc position at the Oslo Centre for Biostatistics and Epidemiology (OCBE) (272144) | University of Oslo
Job title: Four year postdoc position at the Oslo Centre for Biostatistics and Epidemiology (OCBE) (272144), Employer: University of Oslo, Deadline: Friday, January 31, 2025
www.jobbnorge.no
December 17, 2024 at 10:47 AM
Reposted by Leiv Rønneberg
Tvert i mot, dette er på alle måter et skattemessig smutthull. Det er faktisk nøyaktig hva det er: Noe som teknisk sett ikke er ulovlig, men åpenbart heller ikke i tråd med intensjonen. Intensjonen er neppe at eiendomsbaroner skal få skattefritak.
December 17, 2024 at 8:37 AM
Always fun little tidbits on the wikis of famous mathematicians. Here on Riesz Frigyes' (*of the* Riesz representation theorem) lecturing style
December 5, 2024 at 4:36 PM
Reposted by Leiv Rønneberg
December 1, 2024 at 9:14 PM
Like, I get that I shouldn't, but it is surprisingly easy to do inference for a very basic BNN in Stan. Just standard NUTS. The sampler complains a lot, but intervals and mean look sensible enough
December 1, 2024 at 9:03 PM
Reposted by Leiv Rønneberg
Cross-posting this - please join us!

Mailing List link: groups.google.com/g/internatio...
YouTube Channel link: www.youtube.com/@MonteCarloS...
November 30, 2024 at 8:51 PM
Reposted by Leiv Rønneberg
Hi BlueSky 👋😀

This is the new official BlueSky account for the MRC Biostatistics Unit.

Follow us for research, news and events on all things biostatistics and data science.
November 25, 2024 at 4:29 PM
Reposted by Leiv Rønneberg
subscribe the Bayes Nordics email list, for Bayes-related events & jobs in the (European) Nordic countries.
sites.google.com/site/bayesno...

(scope and etiquette at sites.google.com/site/bayesno...)
November 25, 2024 at 9:17 AM
I love these clear, crisp, cold winter mornings. As long as there is no snow.
November 23, 2024 at 8:46 AM
Reposted by Leiv Rønneberg
D&D Combinatorics xkcd.com/3015
November 23, 2024 at 12:59 AM
This looks interesting! (and congratulations to the new doctor in the linked thread) I’ve been trying to implement a version of the Automatic ZigZag of Corbella et al. myself and wondering about this t_max parameter. Will have to read this more closely
November 22, 2024 at 9:16 PM
Very excited for this!
📢 Post-Bayesian online seminar series coming!📢
To stay posted, sign up at
tinyurl.com/postBayes
We'll discuss cutting-edge methods for posteriors that no longer rely on Bayes Theorem.
(e.g., PAC-Bayes, generalised Bayes, Martingale posteriors, ...)
Pls circulate widely!
Mailing list contact information
Information to be added to the post-Bayes mailing list.
tinyurl.com
November 21, 2024 at 9:43 PM
Reposted by Leiv Rønneberg
For those who don’t know yet, I am organising an online talk series together with Arno Solin on “Advances in Probabilistic Machine Learning (APML)”.

It’s free for everyone to join and support early career researchers!

You can register and check out the schedule here: aaltoml.github.io/apml/
Seminar on Advances in Probabilistic Machine Learning
This seminar series aims to provide a platform for young researchers (PhD student or post-doc level) to give invited talks about their research, intending to have a diverse set of talks & speakers on ...
aaltoml.github.io
November 20, 2024 at 8:33 PM
Having a lot of fun implementing various versions of the Zig-Zag sampler these days, keen to see how it performs on some more complex models. Screenshot from a "sticky" implementation in linear regression with a spike-and-slab prior
November 21, 2024 at 8:13 PM
Reposted by Leiv Rønneberg
initial attempt at ML for health starter pack, still missing a lot so contributions welcome go.bsky.app/N5UUARF
November 16, 2024 at 10:05 PM