Isabel Papadimitriou
isabelpapad.bsky.social
Isabel Papadimitriou
@isabelpapad.bsky.social
(jolly good) Fellow at the Kempner Institute @kempnerinstitute.bsky.social‬, incoming assistant professor at UBC Linguistics (and by courtesy CS, Sept 2025). PhD @stanfordnlp.bsky.social‬ with the lovely @jurafsky.bsky.social‬

isabelpapad.com
Are there conceptual directions in VLMs that transcend modality? Check out our COLM oral spotlight 🔦 paper! We use SAEs to analyze the multimodality of linear concepts in VLMs

with @chloesu07.bsky.social, @thomasfel.bsky.social, @shamkakade.bsky.social and Stephanie Gil
arxiv.org/abs/2504.11695
September 17, 2025 at 7:12 PM
September 17, 2025 at 6:17 PM
Reposted by Isabel Papadimitriou
How do people trade off between speed and accuracy in reasoning tasks without easy heuristics? Come to my talk, "Thinking fast, slow, and everywhere in between in humans and language models," in the Reasoning session this afternoon #CogSci2025 to find out!
paper: escholarship.org/uc/item/5td9...
Thinking fast, slow, and everywhere in between in humans and language models
Author(s): Prystawski, Ben; Goodman, Noah | Abstract: How do humans adapt how they reason to varying circumstances? Prior research has argued that reasoning comes in two types: a fast, intuitive type ...
escholarship.org
August 1, 2025 at 3:49 PM
Reposted by Isabel Papadimitriou
When people form conventions in reference games, how easy are they for outsiders to interpret? (for values of "outsider" that include naïve humans and vision-language models) Check out @vboyce.bsky.social's poster today at #CogSci2025 to find out.
paper: escholarship.org/uc/item/16c4...
Idiosyncratic but not opaque: Linguistic conventions formed in reference games are interpretable by naïve humans and vision–language models
Author(s): Boyce, Veronica; Prystawski, Ben; Tan, Alvin Wei Ming; Frank, Michael C. | Abstract: When are in-group linguistic conventions opaque to non-group members (teen slang like "rizz") or general...
escholarship.org
August 1, 2025 at 4:00 PM
Why can’t LMs solve puzzles about the number systems of languages, when they can solve really complex math problems? Our new paper, led by @antararb.bsky.social looks at why this intersection of language and math is difficult, and what this means for LM reasoning! arxiv.org/abs/2506.13886
June 18, 2025 at 6:31 PM
Reposted by Isabel Papadimitriou
ACL paper alert! What structure is lost when using linearizing interp methods like Shapley? We show the nonlinear interactions between features reflect structures described by the sciences of syntax, semantics, and phonology.
June 12, 2025 at 6:56 PM
Reposted by Isabel Papadimitriou
Congrats to Veronica Boyce on her dissertation defense! That’s three amazing talks by three great students in 8 days!
May 30, 2025 at 6:33 PM
This work Mac (my first ever) is great because every time something seriously breaks, instead of becoming distressed and despondent like I usually do, it's just like "ooooooh yeahhh, yet another win for team Linux 😎😎😎🎉🐧"
March 6, 2025 at 9:53 PM
Reposted by Isabel Papadimitriou
😼SMOL DATA ALERT! 😼Anouncing SMOL, a professionally-translated dataset for 115 very low-resource languages! Paper: arxiv.org/pdf/2502.12301
Huggingface: huggingface.co/datasets/goo...
February 19, 2025 at 5:36 PM
Reposted by Isabel Papadimitriou
New paper in Psychological Review!

In "Causation, Meaning, and Communication" Ari Beller (cicl.stanford.edu/member/ari_b...) develops a computational model of how people use & understand expressions like "caused", "enabled", and "affected".

📃 osf.io/preprints/ps...
📎 github.com/cicl-stanfor...
🧵
February 12, 2025 at 6:25 PM
Where are all of the phoneticians of the Boston area and why isn't there a storied subfield of fieldwork studying the Cambridge shopkeeper who seems to have a mix between a West Country (rhotic English!) and a Boston (non-rhotic American!) accent.

Apparently the shop's been open for decades, smh
January 16, 2025 at 7:32 PM
Reposted by Isabel Papadimitriou
Quanta write-up of our Mission: Impossible Language Models work, led by @juliekallini.bsky.social. As the photos suggest, Richard, @isabelpapad.bsky.social, and I do all our work sitting together around a single laptop and pointing at the screen.
January 13, 2025 at 8:59 PM
I will be at NeurIPS starting tomorrow! Would love to chat about interpretability, linguistics, language structure, meaning in LLMs. Reach out!

Aaaand if you love Vancouver, apply to do a PhD at UBC! Fun research in a lovely place! linguistics.ubc.ca/graduate/adm...
December 10, 2024 at 10:13 PM
Do you want to understand how language models work, and how they can change language science? I'm recruiting PhD students at UBC Linguistics! The research will be fun, and Vancouver is lovely. So much cool NLP happening at UBC across both Ling and CS! linguistics.ubc.ca/graduate/adm...
November 18, 2024 at 7:43 PM