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Sílvia Casacuberta

@sicapu.bsky.social
125 followers 236 following 15 posts

Computer Science PhD student & Knight-Hennessy scholar at @stanford.edu. Prev.: @ox.ac.uk with @rhodeshouse.ox.ac.uk, @harvard.edu '23, @maxplanck.de, @ethz.ch, IBM Research. Theory CS for Trustworthy AI silviacasacuberta.com

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Sílvia Casacuberta @sicapu.bsky.social · 15/08/2026
How can theoretical computer science help us think about the interaction between algorithms and society? I wrote some personal reflections about my path into this area and the research community working on these questions knight-hennessy.stanford.edu/news/mathema...
knight-hennessy.stanford.edu
The mathematics of a better world
Sílvia Casacuberta Puig (2025 cohort) reflects on how a childhood love of mathematics grew into a mission: to improve the impact of algorithms on people’s lives.
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Aaron Roth @aaroth.bsky.social · 14/08/2026
We have a new online boosting algorithm which is very efficient and effective. Unlike prior algorithms which maintain many weak learners and ensemble them, we operationalize the "dual view" of boosting. We don't maintain an ensemble. We try to construct an online hard core distribution.
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Aaron Roth @aaroth.bsky.social · 03/07/2026
On Monday @ncollina.bsky.social @iraglobusharris.bsky.social and I are giving a tutorial at ICML on (multi)calibration and its applications. You can find slides and an annotated bibliography on the website: calibration-tutorial.github.io as well as an interactive demo of online calibration algs.
calibration-tutorial.github.io
Calibration, Decisions, and Collaboration in Learning | ICML 2026
An ICML 2026 tutorial on making probabilistic predictions trustworthy for downstream decision-making and collaboration.
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angela zhou @angelamczhou.bsky.social · 25/06/2026
Check out our #FAccT2026 tutorial tomorrow on Bridging Predictions and Interventions in Social Systems! We're going to be building a predictions - interventions index to track ADS systems, evaluations, and gaps therein. Bring a device; I'll try to bring worksheets too :)
Friday, June 26, 3:30p-4:30p Musset Level A
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Sílvia Casacuberta @sicapu.bsky.social · 09/06/2026
It was great to attend @forcconf.bsky.social at Harvard this past week! I gave a talk on our paper “How Global Calibration Strengthens Multiaccuracy” (joint work with Parikshit Gopalan, Varun Kanade, and Omer Reingold), which we presented at FOCS this past December. arxiv.org/abs/2504.15206
arxiv.org
How Global Calibration Strengthens Multiaccuracy
Multiaccuracy and multicalibration are multigroup fairness notions for prediction that have found numerous applications in learning and computational complexity. They can be achieved from a single lea...
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Sílvia Casacuberta @sicapu.bsky.social · 23/04/2026
Excited to be attending #ICLR in Rio this week! I will be presenting our paper (joint with Moritz Hardt) on the sample complexity of treatment allocation. I will be at Pavilion 4 on Saturday 3:15-5:45 pm (poster session 4, #4209). iclr.cc/virtual/2026...
Good Allocations from Bad Estimates, see https://iclr.cc/virtual/2026/poster/10007100
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Quanta Magazine @quantamagazine.org · 10/12/2025
If you swap each letter in “bomb” with the next letter in the alphabet, you’ll get “cpnc.” Recently, scientists showed that and other methods can bypass filters on LLMs like Gemini, DeepSeek and Grok. @peterha2l.bsky.social reports: www.quantamagazine.org/cryptographe...
quantamagazine.org
Cryptographers Show That AI Protections Will Always Have Holes | Quanta Magazine
Large language models such as ChatGPT come with filters to keep certain info from getting out. A new mathematical argument shows that systems like this can never be completely safe.
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FOCS 2026 @focs2026.bsky.social · 09/12/2025
The pre-recorded videos (for the talks whose authors opted in to submit one) are now available on our YouTube channel: m.youtube.com/@FOCS2025 They're also linked from the main website's schedule!
m.youtube.com
FOCS 2025
Videos from the 66th IEEE Symposium on Foundations of Computer Science (FOCS) 2025
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Quanta Magazine @quantamagazine.org · 06/12/2025
The researchers Lijie Chen (left), Igor Oliveira (top-right) and Jitau Li recently used “reverse mathematics” to connect a theorem called the pigeonhole principle to a whole class of complexity problems. www.quantamagazine.org/reverse-math...
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let-all.com @let-all.com · 03/12/2025
Reminder that this is today at 7 pm! Please join us if you are at #NeurIPS2025
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Sílvia Casacuberta @sicapu.bsky.social · 04/12/2025
Hello Bluesky! Joining the app in time to say that I’ll be attending NeurIPS this week! I will be presenting our paper (joint work with Varun Kanade) on building predictors that abstain optimally and fairly. neurips.cc/virtual/2025...
“Selective Omniprediction and Fair Abstention”
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