Magnus Ross
@magnusar.bsky.social
Postdoc at UCL AI Center. Currently work on: forecasting, uncertainty quantification, antimicrobial resistance. Previously: Gaussian processes, physics informed ML, trading power.
https://magnusross.github.io
https://magnusross.github.io
I wrote something about building systems people actually want as an academic in ML. It's pretty much an open letter to 6-months-ago me.
magnusross.github.io/posts/moms-m...
magnusross.github.io/posts/moms-m...
Moms, Models and Medicine | Magnus Ross
A good friend of mine is deep in the world of startups and spends a lot of his time doing idea validation—that is, trying to understand if there is a market for a given idea or product. Despite the fact that in the startup world success is eventually judged by sales or profits, whereas in ML4H it is more likely to be adoption by clinicians and, hopefully, an associated improvement in clinical outcomes, both rely on designing something that people actually want and will use. Therefore, I think many of the tools that help entrepreneurs validate ideas can be repurposed to help researchers undertake projects with real impact.
magnusross.github.io
August 29, 2025 at 1:12 PM
I wrote something about building systems people actually want as an academic in ML. It's pretty much an open letter to 6-months-ago me.
magnusross.github.io/posts/moms-m...
magnusross.github.io/posts/moms-m...
Reposted by Magnus Ross
The American guns turning Haiti’s gangs into an army https://on.ft.com/4lVGHFY
The American guns turning Haiti’s gangs into an army
Weapons smuggled from Florida are empowering the country’s militias and enabling them to challenge a fragile government
on.ft.com
July 30, 2025 at 4:03 AM
The American guns turning Haiti’s gangs into an army https://on.ft.com/4lVGHFY
Come to our seminar with @wessel.ai on "Foundation Models for the Earth System", it's going to be a cracker! It's open to non-UCL people also.
July 8, 2025 at 2:16 PM
Come to our seminar with @wessel.ai on "Foundation Models for the Earth System", it's going to be a cracker! It's open to non-UCL people also.
Good to get some recognition for my incessant posting of Ben's blogs in the Alphaville comments section!
Testing the waters of finance blogging, I wrote about deep learning memes, random features, and the glory of kernel smoothing.
You keep using that word
Can you use deep learning memes to pick meme stocks?
www.argmin.net
July 7, 2025 at 3:30 PM
Good to get some recognition for my incessant posting of Ben's blogs in the Alphaville comments section!
Reposted by Magnus Ross
Take note of the legal advice from Amnesty International and more detailed information from @netpol.org below. CND supporters should be aware that point 4 could impact on how supporters refer to non-violent direct action.
July 7, 2025 at 1:15 PM
Take note of the legal advice from Amnesty International and more detailed information from @netpol.org below. CND supporters should be aware that point 4 could impact on how supporters refer to non-violent direct action.
Reposted by Magnus Ross
ChatGPT is down but The Museum of English Rural Life still stands, proving once again that Silicon Valley cannot compete with the history of rural England and its people.
June 10, 2025 at 12:41 PM
ChatGPT is down but The Museum of English Rural Life still stands, proving once again that Silicon Valley cannot compete with the history of rural England and its people.
Reposted by Magnus Ross
What news editors and politicians think people want: "Just tell them they'll get a tram somewhere in their city if they're nice."
What people really want: "SHOW ME THE FULL GPS ROUTE PLAN COMPLETE WITH LINKS TO THE WIKIPEDIA PAGES OF THE DISUSED RAILWAY LINES THAT COULD COME BACK INTO USE."
What people really want: "SHOW ME THE FULL GPS ROUTE PLAN COMPLETE WITH LINKS TO THE WIKIPEDIA PAGES OF THE DISUSED RAILWAY LINES THAT COULD COME BACK INTO USE."
June 4, 2025 at 6:25 AM
What news editors and politicians think people want: "Just tell them they'll get a tram somewhere in their city if they're nice."
What people really want: "SHOW ME THE FULL GPS ROUTE PLAN COMPLETE WITH LINKS TO THE WIKIPEDIA PAGES OF THE DISUSED RAILWAY LINES THAT COULD COME BACK INTO USE."
What people really want: "SHOW ME THE FULL GPS ROUTE PLAN COMPLETE WITH LINKS TO THE WIKIPEDIA PAGES OF THE DISUSED RAILWAY LINES THAT COULD COME BACK INTO USE."
Reposted by Magnus Ross
Cancer Research UK today published a report which highlights changes in cancer survival rates over the last 50 years.
Many headlines (like this one from the Guardian) have chosen to report the ‘doubling of cancer survival rates’ since the 1970s.
But that's misleading...
1/18
Many headlines (like this one from the Guardian) have chosen to report the ‘doubling of cancer survival rates’ since the 1970s.
But that's misleading...
1/18
June 3, 2025 at 7:21 AM
Cancer Research UK today published a report which highlights changes in cancer survival rates over the last 50 years.
Many headlines (like this one from the Guardian) have chosen to report the ‘doubling of cancer survival rates’ since the 1970s.
But that's misleading...
1/18
Many headlines (like this one from the Guardian) have chosen to report the ‘doubling of cancer survival rates’ since the 1970s.
But that's misleading...
1/18
Reposted by Magnus Ross
Reposted by Magnus Ross
the inexplicable core of Starmerism, as a truly new formation in world politics, is seeing governance as wholly an extension of general election campaign messaging
this is a very strange message from Starmer. First, you're boosting the far right which is, uh, risky. Second, your government was elected LAST YEAR why are you talking like the election campaign is under way?!?!!
*STARMER: TORIES SLIDING INTO ABYSS, CHOICE IS LABOUR OR REFORM
*STARMER: TORIES SLIDING INTO ABYSS, CHOICE IS LABOUR OR REFORM
May 29, 2025 at 10:58 AM
the inexplicable core of Starmerism, as a truly new formation in world politics, is seeing governance as wholly an extension of general election campaign messaging
Reposted by Magnus Ross
Big news!! 🚀 Aurora, a foundation model for the Earth system, has been published in @nature.com.
A massive congrats to the whole team! Very proud of this achievement, and thrilled to see that it’s finally out there. 😊
www.nature.com/articles/s41...
A massive congrats to the whole team! Very proud of this achievement, and thrilled to see that it’s finally out there. 😊
www.nature.com/articles/s41...
A foundation model for the Earth system - Nature
Aurora, a new large-scale foundation model trained on more than one million hours of diverse geophysical data, outperforms operational forecasts in predicting air quality, ocean wave dynamics, tropica...
www.nature.com
May 21, 2025 at 4:10 PM
Big news!! 🚀 Aurora, a foundation model for the Earth system, has been published in @nature.com.
A massive congrats to the whole team! Very proud of this achievement, and thrilled to see that it’s finally out there. 😊
www.nature.com/articles/s41...
A massive congrats to the whole team! Very proud of this achievement, and thrilled to see that it’s finally out there. 😊
www.nature.com/articles/s41...
Reposted by Magnus Ross
Short write-up about how I got xAI to briefly add "white genocide" stuff back into Grok's system prompt.
smol.news/p/the-utter-...
smol.news/p/the-utter-...
The Utter Flimsiness of xAI’s Processes
xAI's was happy to put "white genocide" stuff back into Grok's system prompt without second thought.
smol.news
May 16, 2025 at 5:36 PM
Short write-up about how I got xAI to briefly add "white genocide" stuff back into Grok's system prompt.
smol.news/p/the-utter-...
smol.news/p/the-utter-...
Reposted by Magnus Ross
it's very odd watching the election news in the UK when Labour still has *years* left on their massive governing majority
they can just ignore this stuff and create prosperity and get popular
and what's particularly weird is that it's not just commentators it's Labour themselves that don't get it
they can just ignore this stuff and create prosperity and get popular
and what's particularly weird is that it's not just commentators it's Labour themselves that don't get it
May 2, 2025 at 2:52 PM
it's very odd watching the election news in the UK when Labour still has *years* left on their massive governing majority
they can just ignore this stuff and create prosperity and get popular
and what's particularly weird is that it's not just commentators it's Labour themselves that don't get it
they can just ignore this stuff and create prosperity and get popular
and what's particularly weird is that it's not just commentators it's Labour themselves that don't get it
You know you're in for a banger paper when the this is the first line of the abstract...
April 28, 2025 at 9:17 AM
You know you're in for a banger paper when the this is the first line of the abstract...
Reposted by Magnus Ross
Stealing from X for clout, but someone bought a staggering 25% of the *entire* open interest of a semiconductor ETF (which is 20% NVDA) in a single OTM put option yesterday and today. $3.7 billion of underlying stock, 8ish delta, $23 mil of premium, so levered 15:1 betting on the NVDA embargo news.
April 16, 2025 at 12:07 AM
Stealing from X for clout, but someone bought a staggering 25% of the *entire* open interest of a semiconductor ETF (which is 20% NVDA) in a single OTM put option yesterday and today. $3.7 billion of underlying stock, 8ish delta, $23 mil of premium, so levered 15:1 betting on the NVDA embargo news.
one for the debtors!
I recently reviewed The Paradox of Debt by Richard Vague for the Society of Professional Economists.
Check it out at the links below ⤵️
Check it out at the links below ⤵️
April 16, 2025 at 10:22 AM
one for the debtors!
Reposted by Magnus Ross
A new Python edition of "Forecasting: Principles and Practice" is now available online at otexts.com/fpppy/. Thanks to @azulgarza.bsky.social, Cristian Challu, Max Mergenthaler, Kin Olivares & Nixtla for making this happen. #forecasting #python
Forecasting: Principles and Practice, the Pythonic Way
otexts.com
April 11, 2025 at 12:25 AM
A new Python edition of "Forecasting: Principles and Practice" is now available online at otexts.com/fpppy/. Thanks to @azulgarza.bsky.social, Cristian Challu, Max Mergenthaler, Kin Olivares & Nixtla for making this happen. #forecasting #python
I just came across this paper from ICLR 2024 which proposes an intricate combination of transformers and diffusion models to generate forecasts with these uncertainty bounds (red box), which are clearly inappropriate and could likely be outperformed by modelling the data as a random walk...
March 31, 2025 at 8:41 AM
I just came across this paper from ICLR 2024 which proposes an intricate combination of transformers and diffusion models to generate forecasts with these uncertainty bounds (red box), which are clearly inappropriate and could likely be outperformed by modelling the data as a random walk...
CUDA mode -> Triton mode
I've been diving into the "black magic" world of CUDA recently. More posts may follow, but I think we're at an interesting point. Perhaps the "CUDA moat" is under pressure and perhaps changing how we interact with GPU programming. 🧵
March 26, 2025 at 10:56 AM
CUDA mode -> Triton mode
Reposted by Magnus Ross
13. Third, that because this is a new _social_ technology, its uses involve human relationships mediated through technology. When someone uses ChatGPT to craft a resume, they are engaged via an LLM in a social relationship with all the other humans who wrote the resumes etc in training set ...
March 14, 2025 at 12:57 PM
13. Third, that because this is a new _social_ technology, its uses involve human relationships mediated through technology. When someone uses ChatGPT to craft a resume, they are engaged via an LLM in a social relationship with all the other humans who wrote the resumes etc in training set ...
Reposted by Magnus Ross
This blog on the North Korean Bybit hack — what they reckon is the largest heist of all time — is pretty cool www.elliptic.co/blog/bybit-h...
March 13, 2025 at 9:22 AM
This blog on the North Korean Bybit hack — what they reckon is the largest heist of all time — is pretty cool www.elliptic.co/blog/bybit-h...
Reposted by Magnus Ross
Multi-Head Latent Attention vs Group Query Attention: We break down why MLA is a more expressive memory compression technique AND why naive implementations can backfire. Check it out!
⚡️Multi-Head Latent Attention is one of the key innovations that enabled @deepseek_ai's V3 and the subsequent R1 model.
⏭️ Join us as we continue our series into efficient AI inference, covering both theoretical insights and practical implementation:
🔗 datacrunch.io/blog/deepsee...
⏭️ Join us as we continue our series into efficient AI inference, covering both theoretical insights and practical implementation:
🔗 datacrunch.io/blog/deepsee...
DeepSeek + SGLang: Multi-Head Latent Attention
Multi-Head Latent Attention (MLA) improves upon Group Query Attention (GQA), enabling long-context reasoning models and wider adoption across open-source LLMs.
datacrunch.io
March 12, 2025 at 7:01 PM
Multi-Head Latent Attention vs Group Query Attention: We break down why MLA is a more expressive memory compression technique AND why naive implementations can backfire. Check it out!
Reposted by Magnus Ross
1/ Introducing ACE (Amortized Conditioning Engine)! Our new AISTATS 2025 paper presents a transformer framework that unifies tasks from image completion to BayesOpt & simulator-based inference under *one* probabilistic conditioning approach. It's Bayes all the way down!
March 6, 2025 at 10:32 AM
1/ Introducing ACE (Amortized Conditioning Engine)! Our new AISTATS 2025 paper presents a transformer framework that unifies tasks from image completion to BayesOpt & simulator-based inference under *one* probabilistic conditioning approach. It's Bayes all the way down!