Charlie Rahal
@crahal.com
Associate Professor of Data Science and Informatics at the University of Oxford.
Pinned
Charlie Rahal
@crahal.com
· Sep 1
🚨It's that exciting time of year!🚨
Our team has got TWO open DPhil (PhD) positions in #datascience + #health here at @oxforddemsci.bsky.social for 2026🎉! See for details:
1️⃣ 👉 crahal.com/HDS_2026.html
2️⃣ 👉 crahal.com/pophealth_2026.html
Please share and help us to find our future teammates ❤️!
Our team has got TWO open DPhil (PhD) positions in #datascience + #health here at @oxforddemsci.bsky.social for 2026🎉! See for details:
1️⃣ 👉 crahal.com/HDS_2026.html
2️⃣ 👉 crahal.com/pophealth_2026.html
Please share and help us to find our future teammates ❤️!
The quote of the year came late, but it’s good:
“This is LLM generated nonsense. You make a mockery of real research. Do not submit this again.”
If the originator of the quote sees this, you will remain entirely anonymous I assure you, but I want you to know that I appreciate you.
Happy holidays!
“This is LLM generated nonsense. You make a mockery of real research. Do not submit this again.”
If the originator of the quote sees this, you will remain entirely anonymous I assure you, but I want you to know that I appreciate you.
Happy holidays!
December 24, 2025 at 5:44 PM
The quote of the year came late, but it’s good:
“This is LLM generated nonsense. You make a mockery of real research. Do not submit this again.”
If the originator of the quote sees this, you will remain entirely anonymous I assure you, but I want you to know that I appreciate you.
Happy holidays!
“This is LLM generated nonsense. You make a mockery of real research. Do not submit this again.”
If the originator of the quote sees this, you will remain entirely anonymous I assure you, but I want you to know that I appreciate you.
Happy holidays!
Reposted by Charlie Rahal
📖👨💻🎓 New Courses Alert 🎓👨💻📖
The Leverhulme Centre for Demographic Science is launching three upcoming short courses designed for researchers across health, economics, and the social sciences. Led by experts in the field — including @crahal.com — these courses are now open for registration.👇
The Leverhulme Centre for Demographic Science is launching three upcoming short courses designed for researchers across health, economics, and the social sciences. Led by experts in the field — including @crahal.com — these courses are now open for registration.👇
November 24, 2025 at 12:03 PM
📖👨💻🎓 New Courses Alert 🎓👨💻📖
The Leverhulme Centre for Demographic Science is launching three upcoming short courses designed for researchers across health, economics, and the social sciences. Led by experts in the field — including @crahal.com — these courses are now open for registration.👇
The Leverhulme Centre for Demographic Science is launching three upcoming short courses designed for researchers across health, economics, and the social sciences. Led by experts in the field — including @crahal.com — these courses are now open for registration.👇
Reposted by Charlie Rahal
A pleasure to host @philipncohen.com this week for a fantastic talk on pronatalism & many more engaging discussions about open science, public engagment, and more!
#demography @nuffieldcollege.bsky.social @drjenndowd.bsky.social @melindacmills.bsky.social @crahal.com @ridhikashyap.bsky.social
#demography @nuffieldcollege.bsky.social @drjenndowd.bsky.social @melindacmills.bsky.social @crahal.com @ridhikashyap.bsky.social
November 14, 2025 at 1:42 PM
A pleasure to host @philipncohen.com this week for a fantastic talk on pronatalism & many more engaging discussions about open science, public engagment, and more!
#demography @nuffieldcollege.bsky.social @drjenndowd.bsky.social @melindacmills.bsky.social @crahal.com @ridhikashyap.bsky.social
#demography @nuffieldcollege.bsky.social @drjenndowd.bsky.social @melindacmills.bsky.social @crahal.com @ridhikashyap.bsky.social
i don’t want to be a vibe cop, but please stop vibe coding
November 13, 2025 at 6:15 PM
i don’t want to be a vibe cop, but please stop vibe coding
We're holding brief/extremely informal 15 minute meetings with anyone who is interested in either of these positions, scheduled for 19.11.2025 and 17.11.2025, respectively. Email or DM for more information!
Please do share details within your network; I think these projects are pretty cool!
Please do share details within your network; I think these projects are pretty cool!
🚨It's that exciting time of year!🚨
Our team has got TWO open DPhil (PhD) positions in #datascience + #health here at @oxforddemsci.bsky.social for 2026🎉! See for details:
1️⃣ 👉 crahal.com/HDS_2026.html
2️⃣ 👉 crahal.com/pophealth_2026.html
Please share and help us to find our future teammates ❤️!
Our team has got TWO open DPhil (PhD) positions in #datascience + #health here at @oxforddemsci.bsky.social for 2026🎉! See for details:
1️⃣ 👉 crahal.com/HDS_2026.html
2️⃣ 👉 crahal.com/pophealth_2026.html
Please share and help us to find our future teammates ❤️!
October 11, 2025 at 6:54 AM
We're holding brief/extremely informal 15 minute meetings with anyone who is interested in either of these positions, scheduled for 19.11.2025 and 17.11.2025, respectively. Email or DM for more information!
Please do share details within your network; I think these projects are pretty cool!
Please do share details within your network; I think these projects are pretty cool!
"Draw me a picture of sociological theorists working hand in hand with computer scientists to build a large number of permissible models ascertained by theory".
way to reinforce structural bias, GPT 5 🤦
way to reinforce structural bias, GPT 5 🤦
October 8, 2025 at 8:33 AM
"Draw me a picture of sociological theorists working hand in hand with computer scientists to build a large number of permissible models ascertained by theory".
way to reinforce structural bias, GPT 5 🤦
way to reinforce structural bias, GPT 5 🤦
Thrilled to serve as TPC co-chair (/w @chenyang03.bsky.social) for the brilliant International Conference on Social Computing! 🚀
See @i-c-s-c.bsky.social for updates!
📅 Papers: October 20th!
🔗 Full details: icsc-conf.github.io/2025/
Let’s push the frontiers of #CSS, #DataScience, #LLM, and #AI💡✨
See @i-c-s-c.bsky.social for updates!
📅 Papers: October 20th!
🔗 Full details: icsc-conf.github.io/2025/
Let’s push the frontiers of #CSS, #DataScience, #LLM, and #AI💡✨
October 1, 2025 at 6:47 PM
Thrilled to serve as TPC co-chair (/w @chenyang03.bsky.social) for the brilliant International Conference on Social Computing! 🚀
See @i-c-s-c.bsky.social for updates!
📅 Papers: October 20th!
🔗 Full details: icsc-conf.github.io/2025/
Let’s push the frontiers of #CSS, #DataScience, #LLM, and #AI💡✨
See @i-c-s-c.bsky.social for updates!
📅 Papers: October 20th!
🔗 Full details: icsc-conf.github.io/2025/
Let’s push the frontiers of #CSS, #DataScience, #LLM, and #AI💡✨
🎉Our metrics-and-models.github.io lab announces first hybrid seminar in conjunction with @oxforddemsci.bsky.social🚨
"Nonparametric Causal Decomposition of Group Differences: New Mechanisms & New Methods"
Speaker: Felix Elwert
When: October 8th, 2025
Where: @nuffieldcollege.bsky.social
"Nonparametric Causal Decomposition of Group Differences: New Mechanisms & New Methods"
Speaker: Felix Elwert
When: October 8th, 2025
Where: @nuffieldcollege.bsky.social
September 29, 2025 at 5:48 PM
🎉Our metrics-and-models.github.io lab announces first hybrid seminar in conjunction with @oxforddemsci.bsky.social🚨
"Nonparametric Causal Decomposition of Group Differences: New Mechanisms & New Methods"
Speaker: Felix Elwert
When: October 8th, 2025
Where: @nuffieldcollege.bsky.social
"Nonparametric Causal Decomposition of Group Differences: New Mechanisms & New Methods"
Speaker: Felix Elwert
When: October 8th, 2025
Where: @nuffieldcollege.bsky.social
A paper of ours just got rejected from a leading computer science journal for being ‘too technical’ and for some disturbing reason the inner economist in me is really proud.
September 18, 2025 at 12:24 PM
A paper of ours just got rejected from a leading computer science journal for being ‘too technical’ and for some disturbing reason the inner economist in me is really proud.
The utility of this data resource cannot be understated. Infinite respect to all of the incredibly talented people who worked on it! 😍
Publication describing the IRW now out! link.springer.com/article/10.3...
Over 1000 datasets in there with tools for pulling directly from R!
Over 1000 datasets in there with tools for pulling directly from R!
An introduction to the Item Response Warehouse (IRW): A resource for enhancing data usage in psychometrics - Behavior Research Methods
The Item Response Warehouse (IRW) is a collection and standardization of a large volume of item response datasets in a free and open-source platform for researchers. We describe key elements of the da...
link.springer.com
September 5, 2025 at 9:37 PM
The utility of this data resource cannot be understated. Infinite respect to all of the incredibly talented people who worked on it! 😍
🫂🫂🫂🫂
Big shoutout to Patrick Prag @ppraeg.bsky.social !!
Yes I am an editor too, you may thank me, even if you believe my rejection of your paper was dumb and unfair.
So, I said it. Back to reading the next shitty paper.
Yes I am an editor too, you may thank me, even if you believe my rejection of your paper was dumb and unfair.
So, I said it. Back to reading the next shitty paper.
🫂🫂🫂🫂
September 5, 2025 at 12:55 PM
🫂🫂🫂🫂
Thanks for asking! Its almost like we made a way to automatically track this on a daily basis, @pietrobiroli.bsky.social 🤩!
Kindly see gwasdiversitymonitor.com.
See also: Mills, M. C., & Rahal, C. (2020). The GWAS Diversity Monitor tracks diversity by disease in real time. Nature genetics, 52(3).
Kindly see gwasdiversitymonitor.com.
See also: Mills, M. C., & Rahal, C. (2020). The GWAS Diversity Monitor tracks diversity by disease in real time. Nature genetics, 52(3).
September 1, 2025 at 6:47 PM
Thanks for asking! Its almost like we made a way to automatically track this on a daily basis, @pietrobiroli.bsky.social 🤩!
Kindly see gwasdiversitymonitor.com.
See also: Mills, M. C., & Rahal, C. (2020). The GWAS Diversity Monitor tracks diversity by disease in real time. Nature genetics, 52(3).
Kindly see gwasdiversitymonitor.com.
See also: Mills, M. C., & Rahal, C. (2020). The GWAS Diversity Monitor tracks diversity by disease in real time. Nature genetics, 52(3).
🚨It's that exciting time of year!🚨
Our team has got TWO open DPhil (PhD) positions in #datascience + #health here at @oxforddemsci.bsky.social for 2026🎉! See for details:
1️⃣ 👉 crahal.com/HDS_2026.html
2️⃣ 👉 crahal.com/pophealth_2026.html
Please share and help us to find our future teammates ❤️!
Our team has got TWO open DPhil (PhD) positions in #datascience + #health here at @oxforddemsci.bsky.social for 2026🎉! See for details:
1️⃣ 👉 crahal.com/HDS_2026.html
2️⃣ 👉 crahal.com/pophealth_2026.html
Please share and help us to find our future teammates ❤️!
September 1, 2025 at 11:29 AM
🚨It's that exciting time of year!🚨
Our team has got TWO open DPhil (PhD) positions in #datascience + #health here at @oxforddemsci.bsky.social for 2026🎉! See for details:
1️⃣ 👉 crahal.com/HDS_2026.html
2️⃣ 👉 crahal.com/pophealth_2026.html
Please share and help us to find our future teammates ❤️!
Our team has got TWO open DPhil (PhD) positions in #datascience + #health here at @oxforddemsci.bsky.social for 2026🎉! See for details:
1️⃣ 👉 crahal.com/HDS_2026.html
2️⃣ 👉 crahal.com/pophealth_2026.html
Please share and help us to find our future teammates ❤️!
💡🤖🔥 @keyonv.bsky.social's talk at metrics-and-models.github.io was brilliant, posing epistemic questions about what Artificial Intelligence "understands".
Next (two weeks): Alexander Vezhnevets talks about a new multi-actor generative agent based model. As usual, *all welcome* #datascience #css💡🤖🔥
Next (two weeks): Alexander Vezhnevets talks about a new multi-actor generative agent based model. As usual, *all welcome* #datascience #css💡🤖🔥
August 27, 2025 at 2:57 PM
💡🤖🔥 @keyonv.bsky.social's talk at metrics-and-models.github.io was brilliant, posing epistemic questions about what Artificial Intelligence "understands".
Next (two weeks): Alexander Vezhnevets talks about a new multi-actor generative agent based model. As usual, *all welcome* #datascience #css💡🤖🔥
Next (two weeks): Alexander Vezhnevets talks about a new multi-actor generative agent based model. As usual, *all welcome* #datascience #css💡🤖🔥
Excited to contribute to this; very exciting stuff by @hggaddy.bsky.social, as usual!
📢 Interested in excess mortality methods, and want a challenge? I'm organising the "One Epidemic, Many Estimates" (1EME) project! Register *now* as a many analyst team (submissions due 15 March 2026), and then join us at LSE for a workshop on 21-22 May 2026! (1/n)
www.lse.ac.uk/Economic-His...
www.lse.ac.uk/Economic-His...
One Epidemic, Many Estimates (1EME)
One Epidemic, Many Estimates (1EME)
www.lse.ac.uk
August 27, 2025 at 10:44 AM
Excited to contribute to this; very exciting stuff by @hggaddy.bsky.social, as usual!
💡🤖🔥The talk by Juan Carlos Perdomo at metrics-and-models.github.io was so thought provoking that the convenors stayed to discuss it in the room afterwards for quite some time!
Next, we have @keyonv.bsky.social asking: "What are AI's World Models?". Exciting times over here, all welcome!💡🤖🔥
Next, we have @keyonv.bsky.social asking: "What are AI's World Models?". Exciting times over here, all welcome!💡🤖🔥
August 14, 2025 at 9:50 AM
💡🤖🔥The talk by Juan Carlos Perdomo at metrics-and-models.github.io was so thought provoking that the convenors stayed to discuss it in the room afterwards for quite some time!
Next, we have @keyonv.bsky.social asking: "What are AI's World Models?". Exciting times over here, all welcome!💡🤖🔥
Next, we have @keyonv.bsky.social asking: "What are AI's World Models?". Exciting times over here, all welcome!💡🤖🔥
💡🤖🔥The talk by @klint.bsky.social at metrics-and-models.github.io was truly brilliant. Important work; a clean/intuitive computational design & empirical application from the @itemrespwarehouse.bsky.social!
*Next:* Juan Carlos Perdomo on "The relative value of prediction" (v. excited about this)💡🤖🔥
*Next:* Juan Carlos Perdomo on "The relative value of prediction" (v. excited about this)💡🤖🔥
August 4, 2025 at 12:00 PM
💡🤖🔥The talk by @klint.bsky.social at metrics-and-models.github.io was truly brilliant. Important work; a clean/intuitive computational design & empirical application from the @itemrespwarehouse.bsky.social!
*Next:* Juan Carlos Perdomo on "The relative value of prediction" (v. excited about this)💡🤖🔥
*Next:* Juan Carlos Perdomo on "The relative value of prediction" (v. excited about this)💡🤖🔥
@ramina-sotoudeh.bsky.social gave an AMAZING talk yesterday as part of the #metrics-and-models seminar series👏. Next (30.07), we have @klint.bsky.social on "Reproducing Expert Judgement with Shortened Surveys using Simulated Annealing"🔥! See website for more; metrics-and-models.github.io!
July 17, 2025 at 12:06 PM
@ramina-sotoudeh.bsky.social gave an AMAZING talk yesterday as part of the #metrics-and-models seminar series👏. Next (30.07), we have @klint.bsky.social on "Reproducing Expert Judgement with Shortened Surveys using Simulated Annealing"🔥! See website for more; metrics-and-models.github.io!
The first #metrics-and-models talk was fantastic🤗!
Next: @ramina-sotoudeh.bsky.social on "Antenatal Selection: A novel approach for assessing the genetic and ecological drivers of who survives to birth".
Details: metrics-and-models.github.io
Sign up: metrics_and_models-subscribe@maillist.ox.ac.uk
Next: @ramina-sotoudeh.bsky.social on "Antenatal Selection: A novel approach for assessing the genetic and ecological drivers of who survives to birth".
Details: metrics-and-models.github.io
Sign up: metrics_and_models-subscribe@maillist.ox.ac.uk
July 2, 2025 at 2:47 PM
The first #metrics-and-models talk was fantastic🤗!
Next: @ramina-sotoudeh.bsky.social on "Antenatal Selection: A novel approach for assessing the genetic and ecological drivers of who survives to birth".
Details: metrics-and-models.github.io
Sign up: metrics_and_models-subscribe@maillist.ox.ac.uk
Next: @ramina-sotoudeh.bsky.social on "Antenatal Selection: A novel approach for assessing the genetic and ecological drivers of who survives to birth".
Details: metrics-and-models.github.io
Sign up: metrics_and_models-subscribe@maillist.ox.ac.uk
Hurrying to post about RobustiPy, i forgot this fun animation i made for teaching purposes (with @deevybee.bsky.social on the SABS R3 CDT) around when we started developing. Specification uncertainty is just _one_ type of uncertainty, though; our forthcoming work looks at the role of random numbers!
June 30, 2025 at 2:45 PM
Hurrying to post about RobustiPy, i forgot this fun animation i made for teaching purposes (with @deevybee.bsky.social on the SABS R3 CDT) around when we started developing. Specification uncertainty is just _one_ type of uncertainty, though; our forthcoming work looks at the role of random numbers!
🚀 RobustiPy is out of beta! Feature rich, we hope it becomes useful for model uncertainty / #datascience.
We include 🔟 replications, including “unexplained discrepancies” in prior work!
📄 Preprint: arxiv.org/abs/2506.19958
💻 GitHub: github.com/RobustiPy/robustipy
🌐 Homepage: robustipy.github.io
We include 🔟 replications, including “unexplained discrepancies” in prior work!
📄 Preprint: arxiv.org/abs/2506.19958
💻 GitHub: github.com/RobustiPy/robustipy
🌐 Homepage: robustipy.github.io
Introducing RobustiPy: An efficient next generation multiversal library with model selection, averaging, resampling, and explainable artificial intelligence
We present RobustiPy, a next generation Python-based framework for model uncertainty quantification and multiverse analysis, released under the GNU GPL v3.0. Through the integration of efficient boots...
arxiv.org
June 30, 2025 at 10:41 AM
🚀 RobustiPy is out of beta! Feature rich, we hope it becomes useful for model uncertainty / #datascience.
We include 🔟 replications, including “unexplained discrepancies” in prior work!
📄 Preprint: arxiv.org/abs/2506.19958
💻 GitHub: github.com/RobustiPy/robustipy
🌐 Homepage: robustipy.github.io
We include 🔟 replications, including “unexplained discrepancies” in prior work!
📄 Preprint: arxiv.org/abs/2506.19958
💻 GitHub: github.com/RobustiPy/robustipy
🌐 Homepage: robustipy.github.io
🔥Coming July 2: 'Metrics and Models'!🔥
A new seminar series on advanced modelling w/ impact across health/society.
🌍 Open to *ALL*!
🕑 Weds 2pm UK alternating weeks (online)
🔗 metrics-and-models.github.io
📬 metrics_and_models-subscribe@maillist.ox.ac.uk
Brilliant speakers. *Please share*!
A new seminar series on advanced modelling w/ impact across health/society.
🌍 Open to *ALL*!
🕑 Weds 2pm UK alternating weeks (online)
🔗 metrics-and-models.github.io
📬 metrics_and_models-subscribe@maillist.ox.ac.uk
Brilliant speakers. *Please share*!
June 10, 2025 at 5:48 PM
🔥Coming July 2: 'Metrics and Models'!🔥
A new seminar series on advanced modelling w/ impact across health/society.
🌍 Open to *ALL*!
🕑 Weds 2pm UK alternating weeks (online)
🔗 metrics-and-models.github.io
📬 metrics_and_models-subscribe@maillist.ox.ac.uk
Brilliant speakers. *Please share*!
A new seminar series on advanced modelling w/ impact across health/society.
🌍 Open to *ALL*!
🕑 Weds 2pm UK alternating weeks (online)
🔗 metrics-and-models.github.io
📬 metrics_and_models-subscribe@maillist.ox.ac.uk
Brilliant speakers. *Please share*!
“it’s quite heavy on the statistical analysis” is probably one of the nicest inadvertent compliments a politician could ever give to a data scientist.
Thank you kindly, @wendychambld.bsky.social!
Thank you kindly, @wendychambld.bsky.social!
Yesterday at the Parliamentary debate on Carer’s Leave MP @wendychambld.bsky.social mentioned our work on the income loss caregivers face as a results of providing unpaid care
@dvaldenegro.bsky.social @crahal.com
Working paper available here: arxiv.org/abs/2411.10314
@dvaldenegro.bsky.social @crahal.com
Working paper available here: arxiv.org/abs/2411.10314
During the debate @wendychambld.bsky.social also mentioned more of @mariapetrillo.bsky.social's research: her ground-breaking work estimating the financial impact of people providing care for loved ones: centreforcare.ac.uk/commentary/2...
#unpaidcarers #socialcare
#unpaidcarers #socialcare
May 15, 2025 at 10:31 PM
“it’s quite heavy on the statistical analysis” is probably one of the nicest inadvertent compliments a politician could ever give to a data scientist.
Thank you kindly, @wendychambld.bsky.social!
Thank you kindly, @wendychambld.bsky.social!
One of the world's great books now accompanied by one of the world's great programming languages ♥️. Can't wait to read this.
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 12:13 PM
One of the world's great books now accompanied by one of the world's great programming languages ♥️. Can't wait to read this.
Just moved to @zed.dev as my go-to text editor. Blazing fast with minimum latency (of any sort), so extremely feature rich, immensely beautiful, and clearly an IDE made by people who know what developers want and need. I absolutely love it; highly recommended!
April 8, 2025 at 9:55 AM
Just moved to @zed.dev as my go-to text editor. Blazing fast with minimum latency (of any sort), so extremely feature rich, immensely beautiful, and clearly an IDE made by people who know what developers want and need. I absolutely love it; highly recommended!