Helena Vasconcelos’ Research

A circular flow diagram that compares current and proposed practices for LLM development using data from adopters and non-adopters. Three gray boxes represent current practices: “R&D,” “Chat Models,” and “Adopters’ Needs and Usage Data,” connected in a clockwise loop with black arrows. A blue box labeled “Non-adopters’ Needs and Usage Data” adds a proposed feedback path, shown with blue arrows, linking non-adopter data back to R&D and adopters’ data.

As of June 2025, 66% of Americans have never used ChatGPT.

Our new position paper, Attention to Non-Adopters, explores why this matters: AI research is being shaped around adopters—leaving non-adopters’ needs, and key LLM research opportunities, behind.

arxiv.org/abs/2510.15951

21.10.2025 17:12 — 👍 33    🔁 12    💬 2    📌 0

omg i’m ur biggest fan!!

21.10.2025 03:55 — 👍 1    🔁 0    💬 1    📌 0

Graffiti: Enabling an Ecosystem of Personalized and Interoperable Social Applications | Proceedings of the 38th Annual ACM Symposium on User Interface Software and Technology

I'm headed to #UIST2025 🇰🇷 to present our 🏆 Best Paper (!!!), "Graffiti: Enabling an Ecosystem of Personalized and Interoperable Social Applications"
@karger.bsky.social and David Clark
doi.org/10.1145/3746...

27.09.2025 15:45 — 👍 20    🔁 7    💬 3    📌 1

yayyyyyy

30.09.2025 04:29 — 👍 0    🔁 0    💬 0    📌 0

Best program 😍😍😍

12.09.2025 23:26 — 👍 1    🔁 0    💬 0    📌 0

I’ve been lucky to get the chance to work with some incredibly creative and talented undergrad researchers through this program! Help us spread the word to students who might be interested!

12.09.2025 21:51 — 👍 3    🔁 3    💬 1    📌 0

yaaaayyyy congrats!!!!! 🎊🍾🎉🎈

11.09.2025 03:57 — 👍 1    🔁 0    💬 0    📌 0

yay!

08.07.2025 23:12 — 👍 1    🔁 0    💬 0    📌 0

dude follow me back omg

02.06.2025 20:05 — 👍 2    🔁 0    💬 0    📌 0

I know I’m leaving but weird decision to bring it up in Tiziano’s post…

02.06.2025 19:42 — 👍 4    🔁 0    💬 0    📌 0

tiziano slay

02.06.2025 19:42 — 👍 3    🔁 0    💬 0    📌 0

I'm so excited to join the CS department at Johns Hopkins University (@jhu.edu) as an Assistant Professor! I'm looking for students interested in social computing, HCI, and AI—especially around designing better online systems in the age of LLMs. Come work with me! piccardi.me

02.06.2025 17:16 — 👍 19    🔁 2    💬 1    📌 2

Oh snap….. :( (and thank you ❤️)

22.05.2025 23:10 — 👍 1    🔁 0    💬 0    📌 0

I got GRFP this upcoming year and I’m attending Harvard in the fall, but I didn’t get any info on this…. on my portal it still says “awarded”

22.05.2025 22:59 — 👍 2    🔁 0    💬 1    📌 0

🥰🥰🥰

02.05.2025 02:37 — 👍 1    🔁 0    💬 1    📌 0

Indu and Sunnie in front of the Yokohama city name sculpture

14 Princeton HCI folks in front of the CHI 2025 sign

A group of friends smiling at dinner in a ramen restaurant

Sunnie presenting her paper; the slide shows the paper title, authors, and funding acknowledgements

#CHI2025 = friends, friends, and friends (many not in the pics) 🥰 Research can be lonely, so moments like these are special! Thank you all for an amazing week of learning and fun. Hope to be back soon!!

01.05.2025 18:22 — 👍 18    🔁 2    💬 1    📌 0

I am presenting tomorrow (Wednesday) my TOCHI Microsoft work “Generation Probabilities Are Not Enough: Uncertainty Highlighting in AI Code Completions” at ~11:55am in G301 :) should be fun 🥳

work done w/ @jennwv.bsky.social @qveraliao.bsky.social @adamfourney.bsky.social @gaganbansal.bsky.social 🤩

29.04.2025 02:56 — 👍 6    🔁 2    💬 0    📌 0

Life update! Excited to announce that I’ll be starting as an assistant professor at Cornell Info Sci in August 2026! I’ll be recruiting students this upcoming cycle!

An abundance of thanks to all my mentors and friends who helped make this possible!!

24.04.2025 02:03 — 👍 76    🔁 8    💬 19    📌 0

06.04.2025 14:50 — 👍 2    🔁 0    💬 0    📌 0

Stanford HCI @ Lake Tahoe retreat... 😍

06.04.2025 14:50 — 👍 8    🔁 0    💬 1    📌 1

yayyy!!! <3 <3 <3

28.03.2025 03:58 — 👍 2    🔁 0    💬 1    📌 0

thank you!!!!!!!

04.01.2025 02:18 — 👍 0    🔁 0    💬 0    📌 0

YAY ❤️ big big thank you to my advisors and mentors— @mbernst.bsky.social @ranjaykrishna.bsky.social @tobigerstenberg.bsky.social @jennwv.bsky.social @qveraliao.bsky.social @adamfourney.bsky.social @gaganbansal.bsky.social @arvind.bsky.social — you guys have shaped me more than can be described 🥺❤️

02.01.2025 23:19 — 👍 11    🔁 0    💬 1    📌 0

thank you 🥺🥺❤️❤️

02.01.2025 23:16 — 👍 0    🔁 0    💬 0    📌 0

A screenshot of the CRA website listing Helena's award. Full text in the CRA link.

Big congratulations to @helenasresearch.bsky.social on winning a 2025 CRA Outstanding Undergraduate Researcher Award! cra.org/about/awards...

02.01.2025 21:54 — 👍 17    🔁 1    💬 1    📌 1