Charles Margossian
@charlesm993.bsky.social
Prof at the University of British Columbia. Research in statistics, ML, and AI for science. Views are my own. https://charlesm93.github.io./
StanCon 2026 is this August 17-21 in Upsala, Sweden 🇸🇪
www.stancon2026.org
⏰ Abstracts for contributed talks are due Feb 25
⏰ Abstracts for posters are due May 27
And just to be clear: Yes, StanCon is my favorite conference to attend!! Can't wait for this one!
www.stancon2026.org
⏰ Abstracts for contributed talks are due Feb 25
⏰ Abstracts for posters are due May 27
And just to be clear: Yes, StanCon is my favorite conference to attend!! Can't wait for this one!
January 29, 2026 at 9:55 PM
StanCon 2026 is this August 17-21 in Upsala, Sweden 🇸🇪
www.stancon2026.org
⏰ Abstracts for contributed talks are due Feb 25
⏰ Abstracts for posters are due May 27
And just to be clear: Yes, StanCon is my favorite conference to attend!! Can't wait for this one!
www.stancon2026.org
⏰ Abstracts for contributed talks are due Feb 25
⏰ Abstracts for posters are due May 27
And just to be clear: Yes, StanCon is my favorite conference to attend!! Can't wait for this one!
Reposted by Charles Margossian
Bayesian Workflow by
Andrew Gelman, Aki Vehtari, @rmcelreath.bsky.social with @danpsimpson.bsky.social, @charlesm993.bsky.social, @yulingy.bsky.social, Lauren Kennedy, Jonah Gabry, @paulbuerkner.com, @modrakm.bsky.social, @vianeylb.bsky.social
(in production, estimated copy-editing time 6 weeks)
Andrew Gelman, Aki Vehtari, @rmcelreath.bsky.social with @danpsimpson.bsky.social, @charlesm993.bsky.social, @yulingy.bsky.social, Lauren Kennedy, Jonah Gabry, @paulbuerkner.com, @modrakm.bsky.social, @vianeylb.bsky.social
(in production, estimated copy-editing time 6 weeks)
January 26, 2026 at 8:18 AM
Bayesian Workflow by
Andrew Gelman, Aki Vehtari, @rmcelreath.bsky.social with @danpsimpson.bsky.social, @charlesm993.bsky.social, @yulingy.bsky.social, Lauren Kennedy, Jonah Gabry, @paulbuerkner.com, @modrakm.bsky.social, @vianeylb.bsky.social
(in production, estimated copy-editing time 6 weeks)
Andrew Gelman, Aki Vehtari, @rmcelreath.bsky.social with @danpsimpson.bsky.social, @charlesm993.bsky.social, @yulingy.bsky.social, Lauren Kennedy, Jonah Gabry, @paulbuerkner.com, @modrakm.bsky.social, @vianeylb.bsky.social
(in production, estimated copy-editing time 6 weeks)
Reposted by Charles Margossian
Simons Foundation president David Spergel recently spoke to @issuesinst.bsky.social about the future of science philanthropy: https://issues.org/american-science-simons-spergel-interview/ #science #math #philanthropy
“There Are Two Possible Futures for American Science.”
The Simons Foundation president talks about science philanthropy, the future of the research enterprise, and remaining hopeful.
issues.org
January 8, 2026 at 5:05 PM
Simons Foundation president David Spergel recently spoke to @issuesinst.bsky.social about the future of science philanthropy: https://issues.org/american-science-simons-spergel-interview/ #science #math #philanthropy
What is "workflow" and why is it important?
The latest blog post by Andrew Gelman: statmodeling.stat.columbia.edu/2026/01/08/w...
The latest blog post by Andrew Gelman: statmodeling.stat.columbia.edu/2026/01/08/w...
What is “workflow” and why is it important? | Statistical Modeling, Causal Inference, and Social Science
statmodeling.stat.columbia.edu
January 8, 2026 at 4:59 PM
What is "workflow" and why is it important?
The latest blog post by Andrew Gelman: statmodeling.stat.columbia.edu/2026/01/08/w...
The latest blog post by Andrew Gelman: statmodeling.stat.columbia.edu/2026/01/08/w...
🇪🇸 This week I'm attending ICSDS (International Conference on Stats & Data Science) in Sevilla, Spain.
🤝 Looking forward to connecting with colleagues, old and new!
💡On Wednesday, I'll give a talk on "Variational Inference in the Presence of Symmetry" at the 9 am session on Bayesian learning.
🤝 Looking forward to connecting with colleagues, old and new!
💡On Wednesday, I'll give a talk on "Variational Inference in the Presence of Symmetry" at the 9 am session on Bayesian learning.
December 14, 2025 at 1:22 PM
🇪🇸 This week I'm attending ICSDS (International Conference on Stats & Data Science) in Sevilla, Spain.
🤝 Looking forward to connecting with colleagues, old and new!
💡On Wednesday, I'll give a talk on "Variational Inference in the Presence of Symmetry" at the 9 am session on Bayesian learning.
🤝 Looking forward to connecting with colleagues, old and new!
💡On Wednesday, I'll give a talk on "Variational Inference in the Presence of Symmetry" at the 9 am session on Bayesian learning.
Reposted by Charles Margossian
Check out my poster today (Thurs) at 11am--2pm session. Exhibit Hall C,D,E Poster Location: #602
"Fisher meets Feynman: score-based variational inference with a product of experts" (NeurIPS spotlight)
with Robert Gower, David Blei, and Lawrence Saul
@flatironinstitute.org #NeurIPS2025
"Fisher meets Feynman: score-based variational inference with a product of experts" (NeurIPS spotlight)
with Robert Gower, David Blei, and Lawrence Saul
@flatironinstitute.org #NeurIPS2025
December 4, 2025 at 3:19 PM
Check out my poster today (Thurs) at 11am--2pm session. Exhibit Hall C,D,E Poster Location: #602
"Fisher meets Feynman: score-based variational inference with a product of experts" (NeurIPS spotlight)
with Robert Gower, David Blei, and Lawrence Saul
@flatironinstitute.org #NeurIPS2025
"Fisher meets Feynman: score-based variational inference with a product of experts" (NeurIPS spotlight)
with Robert Gower, David Blei, and Lawrence Saul
@flatironinstitute.org #NeurIPS2025
Applications for the PhD and MSc programs in statistics at UBC are now open!
📆 Deadline for PhD program is December 1st
📆 Deadline for MSc program is January 5th
The department covers all areas of statistics and we have a lot of momentum in Bayesian computation!
📆 Deadline for PhD program is December 1st
📆 Deadline for MSc program is January 5th
The department covers all areas of statistics and we have a lot of momentum in Bayesian computation!
November 7, 2025 at 8:05 PM
Applications for the PhD and MSc programs in statistics at UBC are now open!
📆 Deadline for PhD program is December 1st
📆 Deadline for MSc program is January 5th
The department covers all areas of statistics and we have a lot of momentum in Bayesian computation!
📆 Deadline for PhD program is December 1st
📆 Deadline for MSc program is January 5th
The department covers all areas of statistics and we have a lot of momentum in Bayesian computation!
Application for a postdoc research fellowship in computational mathematics at the Flatiron Institute in New York are now open!
apply.interfolio.com/173401
📆 Deadline is December 1st.
🔭 This is an excellent place to do research at the interface of ML, stats and the natural sciences.
apply.interfolio.com/173401
📆 Deadline is December 1st.
🔭 This is an excellent place to do research at the interface of ML, stats and the natural sciences.
Apply - Interfolio
{{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
apply.interfolio.com
September 16, 2025 at 11:55 PM
Application for a postdoc research fellowship in computational mathematics at the Flatiron Institute in New York are now open!
apply.interfolio.com/173401
📆 Deadline is December 1st.
🔭 This is an excellent place to do research at the interface of ML, stats and the natural sciences.
apply.interfolio.com/173401
📆 Deadline is December 1st.
🔭 This is an excellent place to do research at the interface of ML, stats and the natural sciences.
My paper with Loucas Pillaud-Vivien and Lawrence Saul, “Variational Inference for Uncertainty Quantification: An Analysis of Trade-offs”, has been accepted for publication in the Journal of Machine Learning Research.
📃 arxiv.org/abs/2403.13748
🧵 1/
📃 arxiv.org/abs/2403.13748
🧵 1/
September 10, 2025 at 12:28 AM
My paper with Loucas Pillaud-Vivien and Lawrence Saul, “Variational Inference for Uncertainty Quantification: An Analysis of Trade-offs”, has been accepted for publication in the Journal of Machine Learning Research.
📃 arxiv.org/abs/2403.13748
🧵 1/
📃 arxiv.org/abs/2403.13748
🧵 1/
Yes, in principle, I start at UBC Statistics today. But right now, I'm running around the Frankfurt airport to catch my flight to Vancouver .... 🏃♂️🧳✈️
www.stat.ubc.ca/news/charles...
www.stat.ubc.ca/news/charles...
Charles Margossian Joins the UBC Department of Statistics | UBC Statistics
www.stat.ubc.ca
August 1, 2025 at 10:29 AM
Yes, in principle, I start at UBC Statistics today. But right now, I'm running around the Frankfurt airport to catch my flight to Vancouver .... 🏃♂️🧳✈️
www.stat.ubc.ca/news/charles...
www.stat.ubc.ca/news/charles...
Earlier this month, I taught at the summer school on "cryptography, statistics and machine learning" (mathschool.ysu.am) hosted by Yerevan State University in Armenia 🇦🇲
🙏 Thank you to the organizers for putting together such a wonderful event! I truly enjoyed interacting with the students.
🙏 Thank you to the organizers for putting together such a wonderful event! I truly enjoyed interacting with the students.
July 28, 2025 at 3:30 PM
Earlier this month, I taught at the summer school on "cryptography, statistics and machine learning" (mathschool.ysu.am) hosted by Yerevan State University in Armenia 🇦🇲
🙏 Thank you to the organizers for putting together such a wonderful event! I truly enjoyed interacting with the students.
🙏 Thank you to the organizers for putting together such a wonderful event! I truly enjoyed interacting with the students.
New manuscript by Nawaf Bou-Rabee, Bob Carpenter, Tore Kleppe and Sifan Liu on the WALNUTS algorithm which improves of the NUTS sampler by introducing a locally adaptive step size.
📜 Paper: arxiv.org/pdf/2506.18746
💻 Code: github.com/bob-carpente...
📜 Paper: arxiv.org/pdf/2506.18746
💻 Code: github.com/bob-carpente...
June 26, 2025 at 6:00 AM
New manuscript by Nawaf Bou-Rabee, Bob Carpenter, Tore Kleppe and Sifan Liu on the WALNUTS algorithm which improves of the NUTS sampler by introducing a locally adaptive step size.
📜 Paper: arxiv.org/pdf/2506.18746
💻 Code: github.com/bob-carpente...
📜 Paper: arxiv.org/pdf/2506.18746
💻 Code: github.com/bob-carpente...
🇸🇬 Next stop: Singapore for BayesComp'25 (bayescomp2025.sg) The organizers put together a wonderful program!
I'll be:
🪑 chairing the session on "Parallel comp for MCMC"
🎙️ speaking at the session on "Advances in VI"
Looking forward to meeting researchers and catching up with colleagues.
I'll be:
🪑 chairing the session on "Parallel comp for MCMC"
🎙️ speaking at the session on "Advances in VI"
Looking forward to meeting researchers and catching up with colleagues.
June 15, 2025 at 11:23 AM
🇸🇬 Next stop: Singapore for BayesComp'25 (bayescomp2025.sg) The organizers put together a wonderful program!
I'll be:
🪑 chairing the session on "Parallel comp for MCMC"
🎙️ speaking at the session on "Advances in VI"
Looking forward to meeting researchers and catching up with colleagues.
I'll be:
🪑 chairing the session on "Parallel comp for MCMC"
🎙️ speaking at the session on "Advances in VI"
Looking forward to meeting researchers and catching up with colleagues.
Research opportunity for a graduate student in ecology 🌳 at UBC 🇨🇦 with Lizzie Wolkovich and the Temporal Ecology lab (temporalecology.org).
📝 Apply here: temporalecology.org/joining-the-... by July 1st 2025!
The abstract sounds fascinating (see attached).
📝 Apply here: temporalecology.org/joining-the-... by July 1st 2025!
The abstract sounds fascinating (see attached).
June 13, 2025 at 9:28 PM
Research opportunity for a graduate student in ecology 🌳 at UBC 🇨🇦 with Lizzie Wolkovich and the Temporal Ecology lab (temporalecology.org).
📝 Apply here: temporalecology.org/joining-the-... by July 1st 2025!
The abstract sounds fascinating (see attached).
📝 Apply here: temporalecology.org/joining-the-... by July 1st 2025!
The abstract sounds fascinating (see attached).
🧑💻 Candidate release for Stan 2.37 is out: discourse.mc-stan.org/t/cmdstan-st.... Lots of exciting features to try out, including:
- embedded/integrated Laplace approximation
- new constrained types (e.g. sum_to_zero_matrix)
- built-in constraint transformations exposed
- embedded/integrated Laplace approximation
- new constrained types (e.g. sum_to_zero_matrix)
- built-in constraint transformations exposed
CmdStan & Stan 2.37 release candidate
I am happy to announce that the latest release candidates of CmdStan and Stan are now available on Github! This release cycle brings the embedded Laplace approximation, a sum-to-zero matrix type, new...
discourse.mc-stan.org
June 9, 2025 at 6:08 PM
🧑💻 Candidate release for Stan 2.37 is out: discourse.mc-stan.org/t/cmdstan-st.... Lots of exciting features to try out, including:
- embedded/integrated Laplace approximation
- new constrained types (e.g. sum_to_zero_matrix)
- built-in constraint transformations exposed
- embedded/integrated Laplace approximation
- new constrained types (e.g. sum_to_zero_matrix)
- built-in constraint transformations exposed
Reposted by Charles Margossian
Taking our Models Seriously (my talk at StanBio Connect, this Friday 9am)
statmodeling.stat.columbia.edu/2025/05/27/t...
statmodeling.stat.columbia.edu/2025/05/27/t...
Taking our Models Seriously (my talk at StanBio Connect, this Friday 9am) | Statistical Modeling, Causal Inference, and Social Science
statmodeling.stat.columbia.edu
May 27, 2025 at 1:25 PM
Taking our Models Seriously (my talk at StanBio Connect, this Friday 9am)
statmodeling.stat.columbia.edu/2025/05/27/t...
statmodeling.stat.columbia.edu/2025/05/27/t...
✨ Thank you #AISTATS for the best paper award!!
📜 arxiv.org/abs/2410.11067
💡What does VI learn and under what conditions? The answer lies in symmetry.
🤝 Honored to share this award with my co-author Lawrence Saul from @flatironinstitute.org
📜 arxiv.org/abs/2410.11067
💡What does VI learn and under what conditions? The answer lies in symmetry.
🤝 Honored to share this award with my co-author Lawrence Saul from @flatironinstitute.org
May 5, 2025 at 1:15 AM
✨ Thank you #AISTATS for the best paper award!!
📜 arxiv.org/abs/2410.11067
💡What does VI learn and under what conditions? The answer lies in symmetry.
🤝 Honored to share this award with my co-author Lawrence Saul from @flatironinstitute.org
📜 arxiv.org/abs/2410.11067
💡What does VI learn and under what conditions? The answer lies in symmetry.
🤝 Honored to share this award with my co-author Lawrence Saul from @flatironinstitute.org
🇹🇭 Just arrived in Phuket, Thailand for #AISTATS 2025.
📃 I'll presenting my recent work with Lawrence Saul on Variational Inference in Location-Sacale Families: arxiv.org/abs/2410.11067
DM if you are in town and want to connect at the conference!
📃 I'll presenting my recent work with Lawrence Saul on Variational Inference in Location-Sacale Families: arxiv.org/abs/2410.11067
DM if you are in town and want to connect at the conference!
May 1, 2025 at 6:00 PM
🇹🇭 Just arrived in Phuket, Thailand for #AISTATS 2025.
📃 I'll presenting my recent work with Lawrence Saul on Variational Inference in Location-Sacale Families: arxiv.org/abs/2410.11067
DM if you are in town and want to connect at the conference!
📃 I'll presenting my recent work with Lawrence Saul on Variational Inference in Location-Sacale Families: arxiv.org/abs/2410.11067
DM if you are in town and want to connect at the conference!
Reposted by Charles Margossian
For the first time, Journal-to-Conference papers have entered the schedule of #AISTATS2025 🎉
To celebrate here is a bingo card: should you be among the first to meet all of our amazing Journal-to-Conference presenters (I need proof!), I’ll buy you a drink... provided that you can find me too!
To celebrate here is a bingo card: should you be among the first to meet all of our amazing Journal-to-Conference presenters (I need proof!), I’ll buy you a drink... provided that you can find me too!
April 28, 2025 at 4:29 AM
For the first time, Journal-to-Conference papers have entered the schedule of #AISTATS2025 🎉
To celebrate here is a bingo card: should you be among the first to meet all of our amazing Journal-to-Conference presenters (I need proof!), I’ll buy you a drink... provided that you can find me too!
To celebrate here is a bingo card: should you be among the first to meet all of our amazing Journal-to-Conference presenters (I need proof!), I’ll buy you a drink... provided that you can find me too!
📚 Putting together a reading list for #AISTATS 2025. I already found a few very good papers, and I'm curious to hear about more accepted publications.
April 21, 2025 at 2:13 PM
📚 Putting together a reading list for #AISTATS 2025. I already found a few very good papers, and I'm curious to hear about more accepted publications.
📣 Nominations for the Stan Governing Body are open for another two weeks. Calling on all members of the Stan community to consider this role.
🔗 discourse.mc-stan.org/t/elections-...
💡 A post about my own experience: statmodeling.stat.columbia.edu/2025/03/15/e...
🔗 discourse.mc-stan.org/t/elections-...
💡 A post about my own experience: statmodeling.stat.columbia.edu/2025/03/15/e...
Elections for Stan Governing Body 2025
It’s this time of the year again! (And in fact, we’re a little bit overdue.) We’re renewing the Stan Governing Body (SGB) with all 5 seats up for grabs. Current SGB members may still run, however the...
discourse.mc-stan.org
April 16, 2025 at 4:03 PM
📣 Nominations for the Stan Governing Body are open for another two weeks. Calling on all members of the Stan community to consider this role.
🔗 discourse.mc-stan.org/t/elections-...
💡 A post about my own experience: statmodeling.stat.columbia.edu/2025/03/15/e...
🔗 discourse.mc-stan.org/t/elections-...
💡 A post about my own experience: statmodeling.stat.columbia.edu/2025/03/15/e...
I'm thrilled to share that, starting this summer, I will continue my academic journey as an assistant professor of statistics at the University of British Columbia in Vancouver, Canada.
Full statement here: charlesm93.github.io/files/letter...
Full statement here: charlesm93.github.io/files/letter...
charlesm93.github.io
March 20, 2025 at 6:56 PM
I'm thrilled to share that, starting this summer, I will continue my academic journey as an assistant professor of statistics at the University of British Columbia in Vancouver, Canada.
Full statement here: charlesm93.github.io/files/letter...
Full statement here: charlesm93.github.io/files/letter...
Reposted by Charles Margossian
🚀 Exciting news! We're proposing a new *Bayesian Deep Learning* section within @isba-bayesian.bsky.social .
If you support this initiative, add your name to the petition and help make it happen!
🔗 Petition: tinyurl.com/527vaamz
Sinead Williamson, Theo Papamarkou @vincefort.bsky.social Sara Wade
1/2
If you support this initiative, add your name to the petition and help make it happen!
🔗 Petition: tinyurl.com/527vaamz
Sinead Williamson, Theo Papamarkou @vincefort.bsky.social Sara Wade
1/2
Petition to form a Bayesian Deep Learning section at ISBA
Petition to form a Bayesian Deep Learning section at ISBA We, the undersigned members of the International Society for Bayesian Analysis (ISBA), petition the ISBA board to establish a new Bayesian D...
tinyurl.com
March 17, 2025 at 10:35 PM
🚀 Exciting news! We're proposing a new *Bayesian Deep Learning* section within @isba-bayesian.bsky.social .
If you support this initiative, add your name to the petition and help make it happen!
🔗 Petition: tinyurl.com/527vaamz
Sinead Williamson, Theo Papamarkou @vincefort.bsky.social Sara Wade
1/2
If you support this initiative, add your name to the petition and help make it happen!
🔗 Petition: tinyurl.com/527vaamz
Sinead Williamson, Theo Papamarkou @vincefort.bsky.social Sara Wade
1/2
📣 Calling all members of the Stan community to action!
❕We're renewing the Stan Governing Body. This is a fantastic way to contribute to the project. The SGB co-organizes StanCon and related events, funds developers, and helps set the directions of the project.
🧵 Link in thread.
❕We're renewing the Stan Governing Body. This is a fantastic way to contribute to the project. The SGB co-organizes StanCon and related events, funds developers, and helps set the directions of the project.
🧵 Link in thread.
March 14, 2025 at 7:05 PM
📣 Calling all members of the Stan community to action!
❕We're renewing the Stan Governing Body. This is a fantastic way to contribute to the project. The SGB co-organizes StanCon and related events, funds developers, and helps set the directions of the project.
🧵 Link in thread.
❕We're renewing the Stan Governing Body. This is a fantastic way to contribute to the project. The SGB co-organizes StanCon and related events, funds developers, and helps set the directions of the project.
🧵 Link in thread.