Tim Bray
timbray.bsky.social
Tim Bray
@timbray.bsky.social
Radiologist & MRI scientist at UCL in London - #MRI, #qMRI and #AI-assisted radiology
Reposted by Tim Bray
Are you interested in developing new deep learning and MRI technology for faster, more accurate whole-body MRI scans? Here is an exciting PhD opportunity to do this, and to join an outstanding interdisciplinary imaging research team! Please get in touch.

ucl-epsrc-dtp.github.io/2026-27-proj...
Mapping the spread of cancer with deep learning-powered whole-body magnetic resonance imaging
ucl-epsrc-dtp.github.io
October 27, 2025 at 4:02 PM
Are you interested in developing new deep learning and MRI technology for faster, more accurate whole-body MRI scans? Here is an exciting PhD opportunity to do this, and to join an outstanding interdisciplinary imaging research team! Please get in touch.

ucl-epsrc-dtp.github.io/2026-27-proj...
Mapping the spread of cancer with deep learning-powered whole-body magnetic resonance imaging
ucl-epsrc-dtp.github.io
October 27, 2025 at 4:02 PM
Reposted by Tim Bray
Yet again, machine learning — even gussied up via the transformer architecture — encodes and reinforces societal biases.

This study reveals that LLM-based peer review relies heavily on author institution in its decisions.

arxiv.org/abs/2509.15122
Prestige over merit: An adapted audit of LLM bias in peer review
Large language models (LLMs) are playing an increasingly integral, though largely informal, role in scholarly peer review. Yet it remains unclear whether LLMs reproduce the biases observed in human de...
arxiv.org
September 22, 2025 at 6:11 AM
Reposted by Tim Bray
New AJR Accepted Manuscript:

"Clinical Training As the Foundation for Responsible Artificial Intelligence Use in Radiology: A Perspective From Industry to Fellowship"

By Dr Hong #BrighamRad

ajronline.org/doi/10.2214/...

@ajrradiology.bsky.social
September 8, 2025 at 3:49 PM
Reposted by Tim Bray
Brock et al investigated inflammation-induced changes in femoral hematopoietic bone marrow using advancing MRI techniques - they highlight the potential of advanced MRI T2 analysis and machine learning

#EuropeanRadiologyExperimental

eurradiolexp.springeropen.com/articles/10....
May 21, 2025 at 1:03 PM
Reposted by Tim Bray
Can statistics be fun? You might find it hard to believe, but I had a blast giving this talk on #statistics of quantitative MR methods at the latest @ismrm.bsky.social conference. And judging from the reactions, people had fun too. Have a look: www.youtube.com/watch?v=2ZTT...
Stats Talk - The Characterization of a Quantitative Imaging Method
YouTube video by BAMM
www.youtube.com
May 21, 2025 at 10:02 AM
Reposted by Tim Bray
Fantastic industry panel on sustainability in MRI at #ismrm
May 14, 2025 at 9:45 PM
Reposted by Tim Bray
A great place to hear about some of the latest ones (with short accessible summaries attached) is @prelights.bsky.social! 👀
Read preprints. Cite preprints. Email people and tell them you loved their preprint. Email people you hated their preprint. Embrace preprints, preprints are good.
April 22, 2025 at 7:51 PM
Reposted by Tim Bray
We’re capturing high-resolution 3D images of their internal structures, fully non-invasively — using a scanner originally designed for imaging human 👫 and small animal 🐷🐭…
…and recently used on Egyptian mummies 👀!

📌 A promising step forward for plant studies using multi-energy imaging 🌱
April 17, 2025 at 12:18 PM
Reposted by Tim Bray
Preparing a GenAI class for the medical students :)
April 2, 2025 at 8:07 AM
Reposted by Tim Bray
THREAD

The numbers are in. @bsky.app research sharing volumes vs X Formerly Twitter

In March 2024, on most days, Bluesky hosts more posts linked to research published in 2025 than X.

By quite a lot.

Release the Kraken...

#AcademicSky #HigherEd #Altmetrics
1/11
March 27, 2025 at 5:22 PM
Reposted by Tim Bray
Sakana’s AI Scientist V2 generated a paper that passed peer review in an ICLR workshop. sakana.ai/ai-scientist...

This was done with ICLR workshop organizers’ blessing, and the paper was withdrawn after acceptance.
Sakana AI
The AI Scientist Generates its First Peer-Reviewed Scientific Publication
sakana.ai
March 12, 2025 at 11:34 AM
Reposted by Tim Bray
Great piece
Perspective from 17 years as a scholarly editor -

“…things will get worse before they get better — as evidenced by the recent resignation of an entire board ... We must be very careful, for we are losing something precious.”

scholarlykitchen.sspnet.org/2025/01/15/g...
Guest Post: An Editor’s Perspective on “My Very Last Issue.” - The Scholarly Kitchen
BMJ's Medical Humanities Editor-in-Chief Brandy Schillace reflects on changes in publishing that are making important work harder to do.
scholarlykitchen.sspnet.org
January 15, 2025 at 6:35 PM
Reposted by Tim Bray
Perspective from 17 years as a scholarly editor -

“…things will get worse before they get better — as evidenced by the recent resignation of an entire board ... We must be very careful, for we are losing something precious.”

scholarlykitchen.sspnet.org/2025/01/15/g...
Guest Post: An Editor’s Perspective on “My Very Last Issue.” - The Scholarly Kitchen
BMJ's Medical Humanities Editor-in-Chief Brandy Schillace reflects on changes in publishing that are making important work harder to do.
scholarlykitchen.sspnet.org
January 15, 2025 at 6:30 PM
Reposted by Tim Bray
Want to develop exciting new deep learning and MRI technology for faster, better whole-body MRI scans? Here is an exciting PhD opportunity to do this! If you are interested, please do get in touch. @garyhuizhang @CMI_UCL @David1Atkinson

ucl-epsrc-dtp.github.io/2025-26-proj...
Mapping the spread of cancer with deep learning-powered whole-body magnetic resonance imaging
ucl-epsrc-dtp.github.io
January 10, 2025 at 10:49 AM
Reposted by Tim Bray
"AI" creative writing looks passable to people who don't look at writing all day long. To editors, it pops out like a sore thumb. LLMs are glorified predictive text machines and they predict, well, predictably. PS: if you submit an "AI" story, the editor WILL remember you, and not in a good way.
I can usually tell if something was written by AI in the 1st paragraph. I don’t know if it’s my divergence or the fact that I’ve read a ridiculous amount 🤷🏻‍♀️
January 12, 2025 at 5:18 PM
Want to develop exciting new deep learning and MRI technology for faster, better whole-body MRI scans? Here is an exciting PhD opportunity to do this! If you are interested, please do get in touch. @garyhuizhang @CMI_UCL @David1Atkinson

ucl-epsrc-dtp.github.io/2025-26-proj...
Mapping the spread of cancer with deep learning-powered whole-body magnetic resonance imaging
ucl-epsrc-dtp.github.io
January 10, 2025 at 10:49 AM
Reposted by Tim Bray
New Year, new blogpost ...We haven't had enough of experts - and the civil service is one place we definitely need them occamstypewriter.org/athenedonald...
We Haven’t Had Enough of Experts | Athene Donald's Blog
occamstypewriter.org
January 4, 2025 at 9:31 AM
Reposted by Tim Bray
I do not want AI-generated media.

I want more human-created content.

I want to see and experience things that humans have created.
December 13, 2024 at 6:13 PM
Reposted by Tim Bray
Some fairy parachutes from yesterday’s hike, a close-up, and a fairy parachute condo! Lol
#fungifriends #fungi #mycology #naturephotography
December 12, 2024 at 6:04 PM
Reposted by Tim Bray
Experiments in k-space.

I call this one "explosion-02".
December 11, 2024 at 4:30 PM
Reposted by Tim Bray
Happy #MushroomMonday #FungiFriends #Fungi #Nature #Mushrooms from Hocking Hills in Ohio.🍁🍄‍🟫🍂
December 9, 2024 at 3:26 PM
Reposted by Tim Bray
For Christmas I want a dragon.
Be realistic.
OK. I want my paper to be accepted without revisions.
What colour do you want your dragon.
December 9, 2024 at 8:00 AM
Reposted by Tim Bray
Which one are you?
Among scientists are collectors, classifiers, and compulsive tidiers-up; many are detectives by temperament and many are explorers; some are artists and others artisans. There are poet-scientists and philosopher-scientists and even a few mystics.
–Peter Medawar
November 29, 2024 at 11:47 PM