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Omar Rivasplata

@omarrivasplata.bsky.social
1.8K followers 4.5K following 164 posts

Machine Learning Theory | Maths & Stats Deep Thinker | Posts/reposts might be non-deep Carpe espresso ☕

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Omar Rivasplata @omarrivasplata.bsky.social · 8h
This message I like
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Omar Rivasplata @omarrivasplata.bsky.social · 02/09/2026
This work was done with a fantastic set of collaborators: Jin Zhu (U Birmingham), Chengchun Shi (LSE), Gholamali Aminian (The Alan Turing Institute), Xin Zhou, Lexin Li (UC Berkeley), Jiaang Yao, Simon Little (UC San Francisco)
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Omar Rivasplata @omarrivasplata.bsky.social · 02/09/2026
🚨 A follow-up note on my paper "Semi-pessimistic Reinforcement Learning" which was accepted in the Journal of the American Statistical Association (JASA) The accepted manuscript is now publicly available, here's the link, for anyone interested: www.tandfonline.com/doi/full/10....
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👻 Dead Chachra 💀 @debcha.bsky.social · 23/08/2026
This explainer out of Australia is genuinely useful background and analysis of what happened with the Canada-US trade deal last night. Note that it is extremely and delightfully sweary. Also there’s an appended glossary of Australian slang. ifloz.substack.com/p/king-carne...
ifloz.substack.com
KING CARNEY ACTIVATES KONG MODE WITH ZERO FUCKS
Carney Reads the Clock Like a Pro Wrestler
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Omar Rivasplata @omarrivasplata.bsky.social · 15/08/2026
Heron photo, in Manchester, by Monica Naughton Crimmins
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Omar Rivasplata @omarrivasplata.bsky.social · 12/08/2026
📢 Fantastic opportunity to apply to join the Department of Computer Science at The University of Manchester as a Lecturer or Senior Lecturer in AI/Machine Learning ✨ www.linkedin.com/jobs/view/44...
linkedin.com
The University of Manchester hiring Lecturer or Senior Lecturer in Artificial Intelligence/Machine Learning in Manchester, England, United Kingdom | LinkedIn
Posted 4:49:38 PM. The Department of Computer Science seeks to strengthen and expand its research in AI & Machine…See this and similar jobs on LinkedIn.
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Omar Rivasplata @omarrivasplata.bsky.social · 03/08/2026
📢 The Department of Computer Science at The University of Manchester is hiring a Lecturer or Senior Lecturer in AI/Machine Learning ✨ Further details in the LinkedIn job advert: www.linkedin.com/jobs/view/44...
linkedin.com
The University of Manchester hiring Lecturer or Senior Lecturer in Artificial Intelligence/Machine Learning in Manchester, England, United Kingdom | LinkedIn
Posted 4:49:38 PM. The Department of Computer Science seeks to strengthen and expand its research in AI & Machine…See this and similar jobs on LinkedIn.
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Omar Rivasplata @omarrivasplata.bsky.social · 01/08/2026
This invitation I like
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Omar Rivasplata @omarrivasplata.bsky.social · 22/07/2026
merci beaucoup!
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Omar Rivasplata @omarrivasplata.bsky.social · 21/07/2026
📣 News flash: My offline reinforcement learning paper (with collaborators) has been accepted in JASA, the Journal of the American Statistical Association. Shared in case anyone missed the Sunday news ☺️ PS. I'll be sharing the camera-ready paper later on.
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Omar Rivasplata @omarrivasplata.bsky.social · 12/07/2026
Gangnam Style ICML Loool
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ICML Conference @icmlconf.bsky.social · 12/07/2026
That's a wrap! We hope you had a fun, productive, and idea-filled Gangnam-styled #ICML2026! It's been a pleasure posting with you -- stay tuned for more content. We wish you a safe trip home, and see you next year!
static.klipy.com
Psy's Gangnam Style Dance in Horse Stable
ALT: Psy's Gangnam Style Dance in Horse Stable
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Omar Rivasplata @omarrivasplata.bsky.social · 28/05/2026
📜 PAC-Bayesian Reinforcement Learning Trains Generalizable Policies by Abdelkrim Zitouni, Mehdi Hennequin, Juba Agoun, Ryan Horache, Nadia Kabachi, Omar Rivasplata Accepted to ICML 2026 The camera ready is now available 👇 🔗 openreview.net/forum?id=5Zw...
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Omar Rivasplata @omarrivasplata.bsky.social · 24/05/2026
Plan for Monday 25 May bank holiday...
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Omar Rivasplata @omarrivasplata.bsky.social · 20/05/2026
📢 We are recruiting for a fully-funded PhD studentship (UK home students only) for a project titled: Generative and Hybrid AI for Pharmaceutical Reactors 💊 💻 To be supervised by the wonderful Nuasheen Basha, Dongda Zhang and Yours Truly. Further details: www.findaphd.com/phds/project...
findaphd.com
Generative and Hybrid AI for Pharmaceutical Reactor Design at The University of Manchester on FindAPhD.com
PhD Project - Generative and Hybrid AI for Pharmaceutical Reactor Design at The University of Manchester, listed on FindAPhD.com
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Omar Rivasplata @omarrivasplata.bsky.social · 16/05/2026
I run a google search for "if researchturer was a word, what would it mean" and the result pinned exactly the meaning I had in mind...
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Omar Rivasplata @omarrivasplata.bsky.social · 30/04/2026
Satisfying moment when seeing the news that this paper is now accepted to @icmlconf.bsky.social 📜 PAC-Bayesian Reinforcement Learning Trains Generalizable Policies 🔗 arxiv.org/abs/2510.10544 A very good collaboration between Lyon 🇫🇷 and Manchester 🇬🇧
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Omar Rivasplata @omarrivasplata.bsky.social · 09/04/2026
🔎 I google searched for "Is Manchester an attractive university for AI / Machine Learning programmes at masters and PhD levels?" I share the result to (brag and) catch the attention of qualified candidates seeking training in AI / ML at masters and PhD levels in the near future
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Omar Rivasplata @omarrivasplata.bsky.social · 07/04/2026
Is Manchester considered England's second city? www.bbc.com/news/article...
bbc.com
Is Manchester considered England's second city after London?
The question over the unofficial title has fiercely divided the Brummies and Mancunians for decades.
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Omar Rivasplata @omarrivasplata.bsky.social · 12/03/2026
Apropos my eye surgery, I got this from family
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Omar Rivasplata @omarrivasplata.bsky.social · 10/03/2026
✍ Discussion and brainstorming meetings are very good for keeping the research alive. Here is a pic taken this afternoon after such meeting in Atlas room, Kilburn building, The University of Manchester ✨
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Omar Rivasplata @omarrivasplata.bsky.social · 01/03/2026
Ooops
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Reposted by Omar Rivasplata
Magnus Rattray @mrattray.bsky.social · 01/03/2026
How to deal with clinical flow cytometry data with batch effects, changing markers, multiple panels per sample, incomplete cell-type labelling and large differences in cell-type proportions across patients? Mike Phuycharoen developed the UVAE method to solve this problem www.cell.com/iscience/ful...
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Omar Rivasplata @omarrivasplata.bsky.social · 08/02/2026
Plenty of good company in the Senior Program Committee for this year's Conference on Learning Theory #COLT2026 The picture shows part of the list only, the whole list in the link: 🔗 learningtheory.org/colt2026/pro...
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Omar Rivasplata @omarrivasplata.bsky.social · 04/02/2026
📢 The Spärck AI Scholarship is a new, prestigious UK government programme designed to attract top home and global talent to study artificial intelligence (AI) and related subjects at master's level. A great opportunity to come to #Manchester AI FUN for your MSc! www.manchester.ac.uk/study/master...
manchester.ac.uk
Spärck AI Scholarship | The University of Manchester
Research. Teaching and learning. Social responsibility. Discover more about The University of Manchester here.
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Omar Rivasplata @omarrivasplata.bsky.social · 25/01/2026
📢 Turing AI Global Fellowship - Call for EoI Excellent funding scheme to attract exceptional AI researchers currently based outside the UK to relocate to the UK, to #Manchester 🐝 obviously (!) to join the Manchester Centre for AI Fundamentals @aifunmcr.bsky.social www.linkedin.com/feed/update/...
linkedin.com
EOI: Turing AI Global Fellowship | Manchester Centre for AI Fundamentals
Turing AI Global Fellowship Call - Expression of Interest This UKRI funded scheme seeks to attract exceptional Artificial Intelligence (AI) researchers currently based outside of the UK to build new ...
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Omar Rivasplata @omarrivasplata.bsky.social · 16/01/2026
Unreasonably satisfied to notice the first couple of citations of the year
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Omar Rivasplata @omarrivasplata.bsky.social · 16/12/2025
Note to self to write short concise emails. Reason: Long emails tend to create complications. Can be obstacles to effective comms. Even if intended to explain or clarify something, the outcome of a long email can be confusion and complications
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Marco Cuturi @marcocuturi.bsky.social · 05/11/2025
We have been working with Michal Klein on pushing a module to train *flow matching* models using JAX. This is shipped as part of our new release of the OTT-JAX toolbox (github.com/ott-jax/ott) The tutorial to do so is here: ott-jax.readthedocs.io/tutorials/ne...
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Omar Rivasplata @omarrivasplata.bsky.social · 09/12/2025
Consolidator congrats!
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Michal Valko @misovalko.bsky.social · 06/12/2025
See you in January 2026 in Abu Dhabi with @yann-lecun.bsky.social @jpvert.bsky.social, Ivan Laptev, and other friends at Machine Can See!
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Omar Rivasplata @omarrivasplata.bsky.social · 07/12/2025
Miso breaks the boundary of intelligence!
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Omar Rivasplata @omarrivasplata.bsky.social · 04/12/2025
cette marge est trop étroite, monsieur
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Omar Rivasplata @omarrivasplata.bsky.social · 03/12/2025
Most decorated expectation I ever saw!
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Omar Rivasplata @omarrivasplata.bsky.social · 27/11/2025
Went to Oxford
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ELLIS @ellis.eu · 24/11/2025
👋 Meet the ELLIS Board! This episode features @samikaski.bsky.social, Director of the @ellisinstitute.fi 🇫🇮 & Prof at @aalto.fi 🇫🇮 & @manchester.ac.uk 🇬🇧 He answers rapid-fire questions about the future of #AI and recommends this paper: arxiv.org/abs/2506.07259 Watch now 👉 youtu.be/ZP7HuurCDIU
youtu.be
Meet the Board: Samuel Kaski (ELLIS Board Member | ELLIS Institute Finland)
YouTube video by ELLIS
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ELLIS @ellis.eu · 14/11/2025
🏹 Job alert: Postdocs/research fellows in probabilistic machine learning at @ellisinstitute.fi & Manchester Centre for AI Fundamentals 📍 Helsinki 🇫🇮 & Manchester 🏴󠁧󠁢󠁥󠁮󠁧󠁿 📅 Apply by Dec 1st 🔗 bit.ly/3LEl5Ri
bit.ly
Postdocs/research fellows in probabilistic machine learning
I am hiring to my group in ELLIS Institute Finland and Manchester Centre for AI Fundamentals
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Omar Rivasplata @omarrivasplata.bsky.social · 15/11/2025
Here's a shot 📸 of Sean Meyn's talk:
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Omar Rivasplata @omarrivasplata.bsky.social · 15/11/2025
Also, had a fun blackboard discussion with the great Sean Meyn, I share a few pictures 📷 playing with the blackboard signs 😄 Was very good to see Michal Valko again! @misovalko.bsky.social
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Omar Rivasplata @omarrivasplata.bsky.social · 15/11/2025
Was great to meet many excellent colleagues from around the UK and overseas, presenting their research on problems at this fascinating intersection ✨
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Omar Rivasplata @omarrivasplata.bsky.social · 15/11/2025
✍ Earlier this week I was at the Isaac Newton Institute for Mathematical Sciences in Cambridge, attending the workshop "Bridging Stochastic Control and Reinforcement Learning: Theories and Applications" 🔗 www.newton.ac.uk/event/SCLW01/
newton.ac.uk
Bridging Stochastic Control And Reinforcement Learning: Theories and Applications - Isaac Newton Institute
This workshop aims to bring together experts from diverse fields—including control theory, stochastic analysis, statistics, optimization, machine...
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Omar Rivasplata @omarrivasplata.bsky.social · 14/11/2025
What makes PhD students happy? Good supervision Supervisors who invest in positive mentoring relationships with their PhD candidates also reap the benefits for their own research. www.nature.com/articles/d41...
nature.com
What makes PhD students happy? Good supervision
Supervisors who invest in positive mentoring relationships with their PhD candidates also reap the benefits for their own research.
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Royal Statistical Society @royalstatsoc.bsky.social · 11/11/2025
🗳️ The results are in! Meet the 7 newly elected trustees joining our Council in Jan 2026: rss.org.uk/news-publica... Big congrats to all! 🎉 And thank you to everyone who voted or stood—your voice shapes our future.
rss.org.uk
Meet Your Newly Elected Council Members
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Omar Rivasplata @omarrivasplata.bsky.social · 01/11/2025
✨ Looking forward to visiting Finland 🇫🇮 this month for the AI Summit (17 Nov) and the scientific seminar and launch (18 Nov) of the ELLIS Institute Finland
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Omar Rivasplata @omarrivasplata.bsky.social · 31/10/2025
Booked my trip to Cambridge for this one
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Omar Rivasplata @omarrivasplata.bsky.social · 26/10/2025
Intriguing results of a PhD student experience survey across a number of countries. Brazil and Australia scored high on "satisfaction" and UK didn't fall too far behind. Quality of mentoring reported as very important feature, and so was quality of human connections www.nature.com/articles/d41...
nature.com
Are these the happiest PhD students in the world?
Brazil, Australia and Italy have the highest satisfaction scores in Nature’s global 2025 PhD survey — but are these nations really the best places to do a doctorate?
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Omar Rivasplata @omarrivasplata.bsky.social · 18/10/2025
Reminder of the preferred approach when sharing arXiv preprint links
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Omar Rivasplata @omarrivasplata.bsky.social · 14/10/2025
📢 New preprint alert - This work with collaborators is on Reinforcement Learning + PAC-Bayes for Markov Chain data. Had been in the oven for some months and received feedback from NeurIPS'25. We uploaded the preprint in arXiv for visibility and comments would be welcome! arxiv.org/abs/2510.10544
arxiv.org
PAC-Bayesian Reinforcement Learning Trains Generalizable Policies
We derive a novel PAC-Bayesian generalization bound for reinforcement learning that explicitly accounts for Markov dependencies in the data, through the chain's mixing time. This contributes to overco...
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Royal Statistical Society @royalstatsoc.bsky.social · 30/09/2025
If you haven't already, there's still time for members to vote in our Council elections and have your say in our future! 🗣️ Meet this year's candidates 👉 rss.org.uk/news-publica... ✉️ Check your email for your personalised voting link. Voting closes midnight on Sunday 12 October.
rss.org.uk
Meet the candidates for the 2025 RSS Council elections
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Omar Rivasplata @omarrivasplata.bsky.social · 04/10/2025
Mathematics Today dropped through the letterbox this morning. Contains a cute piece on quantum computing illustrated with maths topics taught in A-levels (UK school system). Recommendable for those who teach maths to connect with the trendy topic! ima.org.uk
ima.org.uk
IMA
The Institute of Mathematics and its Applications is the UK's chartered professional body for mathematicians and one of the UK's learned societies for mathematics.
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