Tiziano Piccardi
@tiziano.bsky.social
Assistant Professor @ Johns Hopkins University | Prev: Stanford & EPFL | https://piccardi.me/
🚨 I'm recruiting PhD students in Computer Science at Johns Hopkins University for Fall 2026. If you're interested in AI, HCI, and designing better online platforms and experiences, apply to work with me!
More info: piccardi.me
More info: piccardi.me
November 13, 2025 at 3:52 PM
🚨 I'm recruiting PhD students in Computer Science at Johns Hopkins University for Fall 2026. If you're interested in AI, HCI, and designing better online platforms and experiences, apply to work with me!
More info: piccardi.me
More info: piccardi.me
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
June 2, 2025 at 5:16 PM
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
100 Years of Engineering @ Stanford!
May 15, 2025 at 11:33 PM
100 Years of Engineering @ Stanford!
Deadline today! 🚨
Join us at the 2nd WikiNLP Workshop on NLP for Wikipedia, co-located with #ACL2025 in Vienna. We welcome both in-person and virtual attendees!
🗓️ Submission deadline: April 30
🔗 Details: w.wiki/CumQ
Join us at the 2nd WikiNLP Workshop on NLP for Wikipedia, co-located with #ACL2025 in Vienna. We welcome both in-person and virtual attendees!
🗓️ Submission deadline: April 30
🔗 Details: w.wiki/CumQ
April 30, 2025 at 4:18 PM
Deadline today! 🚨
Join us at the 2nd WikiNLP Workshop on NLP for Wikipedia, co-located with #ACL2025 in Vienna. We welcome both in-person and virtual attendees!
🗓️ Submission deadline: April 30
🔗 Details: w.wiki/CumQ
Join us at the 2nd WikiNLP Workshop on NLP for Wikipedia, co-located with #ACL2025 in Vienna. We welcome both in-person and virtual attendees!
🗓️ Submission deadline: April 30
🔗 Details: w.wiki/CumQ
How do people *really* read Wikipedia? 📖 👀
We explored how readers navigate, fall into rabbit holes, and engage with information in a chapter for the ‘Handbook of Computational Social Science,’ edited by @tahayasseri.bsky.social. Stay tuned for the full book! 📚
Preprint: arxiv.org/abs/2501.00939
We explored how readers navigate, fall into rabbit holes, and engage with information in a chapter for the ‘Handbook of Computational Social Science,’ edited by @tahayasseri.bsky.social. Stay tuned for the full book! 📚
Preprint: arxiv.org/abs/2501.00939
January 5, 2025 at 5:45 PM
How do people *really* read Wikipedia? 📖 👀
We explored how readers navigate, fall into rabbit holes, and engage with information in a chapter for the ‘Handbook of Computational Social Science,’ edited by @tahayasseri.bsky.social. Stay tuned for the full book! 📚
Preprint: arxiv.org/abs/2501.00939
We explored how readers navigate, fall into rabbit holes, and engage with information in a chapter for the ‘Handbook of Computational Social Science,’ edited by @tahayasseri.bsky.social. Stay tuned for the full book! 📚
Preprint: arxiv.org/abs/2501.00939
Weekend exercise: testing the Bluesky firehose. Who doesn't need a real-time dashboard to track EVERY emoji in messages?
😭, 😂, 🤣, ❤️ are topping the leaderboard!
feeds.feedwizard.org (counters just started)
😭, 😂, 🤣, ❤️ are topping the leaderboard!
feeds.feedwizard.org (counters just started)
December 15, 2024 at 1:02 AM
Weekend exercise: testing the Bluesky firehose. Who doesn't need a real-time dashboard to track EVERY emoji in messages?
😭, 😂, 🤣, ❤️ are topping the leaderboard!
feeds.feedwizard.org (counters just started)
😭, 😂, 🤣, ❤️ are topping the leaderboard!
feeds.feedwizard.org (counters just started)
The results:
🔹 Less exposure to AAPA content made people warmer toward political outgroups (+2.1 on a 0–100 scale, reversing ~3yr of US polarization trends).
🔹 More exposure made people colder (-2.5).
🔹 AAPA content increased feelings of anger and sadness in in-feed surveys.
🔹 Less exposure to AAPA content made people warmer toward political outgroups (+2.1 on a 0–100 scale, reversing ~3yr of US polarization trends).
🔹 More exposure made people colder (-2.5).
🔹 AAPA content increased feelings of anger and sadness in in-feed surveys.
November 25, 2024 at 8:32 PM
The results:
🔹 Less exposure to AAPA content made people warmer toward political outgroups (+2.1 on a 0–100 scale, reversing ~3yr of US polarization trends).
🔹 More exposure made people colder (-2.5).
🔹 AAPA content increased feelings of anger and sadness in in-feed surveys.
🔹 Less exposure to AAPA content made people warmer toward political outgroups (+2.1 on a 0–100 scale, reversing ~3yr of US polarization trends).
🔹 More exposure made people colder (-2.5).
🔹 AAPA content increased feelings of anger and sadness in in-feed surveys.
📊 For the experiment, we recruited 1,256 participants and altered their exposure to AAPA posts over ten days. We measured the effects using pre-post and in-feed surveys to understand impact of the interventions on affective polarization and emotions.
November 25, 2024 at 8:32 PM
📊 For the experiment, we recruited 1,256 participants and altered their exposure to AAPA posts over ten days. We measured the effects using pre-post and in-feed surveys to understand impact of the interventions on affective polarization and emotions.
🛠️ What we did:
We built a browser extension that intercepts users’ social media feeds, uses GPT to identify polarizing content in real time, and re-ranks posts to change their visibility. We do this without impacting the user experience.
Read more about the tool: arxiv.org/abs/2406.19571
We built a browser extension that intercepts users’ social media feeds, uses GPT to identify polarizing content in real time, and re-ranks posts to change their visibility. We do this without impacting the user experience.
Read more about the tool: arxiv.org/abs/2406.19571
November 25, 2024 at 8:32 PM
🛠️ What we did:
We built a browser extension that intercepts users’ social media feeds, uses GPT to identify polarizing content in real time, and re-ranks posts to change their visibility. We do this without impacting the user experience.
Read more about the tool: arxiv.org/abs/2406.19571
We built a browser extension that intercepts users’ social media feeds, uses GPT to identify polarizing content in real time, and re-ranks posts to change their visibility. We do this without impacting the user experience.
Read more about the tool: arxiv.org/abs/2406.19571
We focused on posts expressing Partisan Animosity and Antidemocratic Attitudes (AAPA) as polarizing.
These are defined by 8 bipartisan factors identified in the Strengthening Democracy Challenge (www.science.org/doi/10.1126/...)
These are defined by 8 bipartisan factors identified in the Strengthening Democracy Challenge (www.science.org/doi/10.1126/...)
November 25, 2024 at 8:32 PM
We focused on posts expressing Partisan Animosity and Antidemocratic Attitudes (AAPA) as polarizing.
These are defined by 8 bipartisan factors identified in the Strengthening Democracy Challenge (www.science.org/doi/10.1126/...)
These are defined by 8 bipartisan factors identified in the Strengthening Democracy Challenge (www.science.org/doi/10.1126/...)
New paper: Do social media algorithms shape affective polarization?
We ran a field experiment on X/Twitter (N=1,256) using LLMs to rerank content in real-time, adjusting exposure to polarizing posts. Result: Algorithmic ranking impacts feelings toward the political outgroup! 🧵⬇️
We ran a field experiment on X/Twitter (N=1,256) using LLMs to rerank content in real-time, adjusting exposure to polarizing posts. Result: Algorithmic ranking impacts feelings toward the political outgroup! 🧵⬇️
November 25, 2024 at 8:32 PM
New paper: Do social media algorithms shape affective polarization?
We ran a field experiment on X/Twitter (N=1,256) using LLMs to rerank content in real-time, adjusting exposure to polarizing posts. Result: Algorithmic ranking impacts feelings toward the political outgroup! 🧵⬇️
We ran a field experiment on X/Twitter (N=1,256) using LLMs to rerank content in real-time, adjusting exposure to polarizing posts. Result: Algorithmic ranking impacts feelings toward the political outgroup! 🧵⬇️
Academic job market post! 👀
I’m a CS Postdoc at Stanford in the Stanford HCI group.
I develop ways to improve the online information ecosystem by designing better social media feeds & improving Wikipedia. I work on AI, Social Computing, and HCI.
piccardi.me 🧵
I’m a CS Postdoc at Stanford in the Stanford HCI group.
I develop ways to improve the online information ecosystem by designing better social media feeds & improving Wikipedia. I work on AI, Social Computing, and HCI.
piccardi.me 🧵
November 13, 2024 at 6:16 PM
Academic job market post! 👀
I’m a CS Postdoc at Stanford in the Stanford HCI group.
I develop ways to improve the online information ecosystem by designing better social media feeds & improving Wikipedia. I work on AI, Social Computing, and HCI.
piccardi.me 🧵
I’m a CS Postdoc at Stanford in the Stanford HCI group.
I develop ways to improve the online information ecosystem by designing better social media feeds & improving Wikipedia. I work on AI, Social Computing, and HCI.
piccardi.me 🧵