YY Ahn
banner
yyahn.bsky.social
YY Ahn
@yyahn.bsky.social
Prof @ School of Data Science, University of Virginia. Formerly at IU. Networks, data science, and machine learning. https://yyahn.com

🚲🚲🚲
We’re recruiting PhD students at @uvadatascience.bsky.social, and I’m looking for students to join our group (Y Lab) next year!

My group works at the intersection of network science, machine learning, and interpretable AI.

yyahn.com/ylab/

Apply here! datascience.virginia.edu/degrees/phd
Y Lab - YY Ahn
yyahn.com
November 25, 2025 at 7:59 PM
Reposted by YY Ahn
One week left to apply to the UVA Biology PhD program! If you or someone you know are interested in contagion from a complex systems perspective, please reach out! I'm looking for a grad student! bio.as.virginia.edu/how-apply-gr...
How to Apply to the Graduate Program
bio.as.virginia.edu
November 25, 2025 at 4:31 PM
Reposted by YY Ahn
💥 Northeastern University in Boston is hiring a tenure-track Assistant Professor in Network Science & Communication! Joint appointment with Communication Studies & College of Science. Review of applications begins 𝗗𝗲𝗰𝗲𝗺𝗯𝗲𝗿 𝟭𝟱, 𝟮𝟬𝟮𝟱. Please share!!
northeastern.wd1.myworkdayjobs.com/careers/job/...
Assistant Professor in Network Science and Communication
About the Opportunity About the Opportunity The College of Arts, Media and Design (CAMD) at Northeastern University invites applications for a tenure-track Assistant Professor in Network Science, to b...
northeastern.wd1.myworkdayjobs.com
November 25, 2025 at 6:08 PM
Reposted by YY Ahn
“YouTuber “Schlep" built a huge following tracking down alleged child predators on Roblox before being kicked off. The platform is facing multiple lawsuits over child safety.”

File under feature, not bug.

www.wired.com/story/he-hun...
He Hunted Alleged Groomers on Roblox. Then the Company Banned Him
YouTuber “Schlep" built a huge following tracking down alleged child predators on Roblox before being kicked off. The platform is facing multiple lawsuits over child safety.
www.wired.com
November 25, 2025 at 12:55 PM
Reposted by YY Ahn
I’m pleased to share the Second Key Update to the International AI Safety Report, which outlines how AI developers, researchers, and policymakers are approaching technical risk management for general-purpose AI systems.
(1/6)
November 25, 2025 at 12:06 PM
Reposted by YY Ahn
Summary: a (rather simple) AI bot can not only successfully evade survey-level protections, it can also mimic personas accurately across questions, parse photos/videos, and infer the researcher’s hypotheses to produce data that confirms them.

The official paper link:
www.pnas.org/doi/10.1073/...
November 21, 2025 at 3:17 PM
Reposted by YY Ahn
Claude scientific skills 🧬🖥️🧪
github.com/K-Dense-AI/c...

🧬 Bioinformatics & Genomics
🧪 Cheminformatics & Drug Discovery
🔬 Proteomics & Mass Spectrometry
🤖 Machine Learning & AI
🔮 Materials Science & Chemistry
📊 Data Analysis & Visualization
November 12, 2025 at 10:14 AM
Reposted by YY Ahn
I’m really excited about our release of Gemini 3 today, the result of hard work by many, many people in the Gemini team and all across Google! 🎊

blog.google/products/gem...

Gemini 3 performs quite well on a wide range of benchmarks.
November 19, 2025 at 2:53 AM
Reposted by YY Ahn
NEW: The Tate brothers, who have been accused of sexual misconduct in three countries, had their devices seized by law enforcement when they arrived in the U.S.

Days later, a White House official told DHS to return them.
The White House Intervened on Behalf of Accused Sex Trafficker Andrew Tate During a Federal Investigation
Federal authorities were chided for seizing electronic devices from Tate and his brother, and told to return them, records and interviews show. Experts said the intervention was highly inappropriate.
www.propublica.org
November 18, 2025 at 12:00 PM
please remember that an “asset” that produces no value can rise in price **only if** someone else is willing to pay more for it.
November 16, 2025 at 11:48 PM
"Using a regression discontinuity in time design, we find that mass shootings mobilize local voters (especially in heavily Democratic areas) but do not shift presidential vote choices."

www.science.org/doi/10.1126/...
The effect of mass shootings on voter turnout in the United States
Following mass shootings, localized voter turnout increases, as does support for a gun reform ballot initiative.
www.science.org
November 16, 2025 at 11:18 PM
Reposted by YY Ahn
If women are underrepresented in STEM, it's at least partly because men like this offer mentoring, then embarrass themselves by assuming their mentees must be into them, then decide the best solution is to cut ties, which sends the signal to other faculty that the mentee must not be good enough.
The emails have Summers reporting to Epstein about his attempts to date a Harvard economics student & to hit on her during a seminar she was giving.
November 16, 2025 at 12:13 AM
I see the point of the commentary but am not so sure about these examples... Isn't the PCA doing what it's supposed to do in these examples? (I often use "finding the most informative perspective to look at a fish" as an intuitive way to understand PCA.)

www.pnas.org/doi/10.1073/...
November 16, 2025 at 12:35 AM
Reposted by YY Ahn
The emails have Summers reporting to Epstein about his attempts to date a Harvard economics student & to hit on her during a seminar she was giving.
November 15, 2025 at 9:48 PM
Reposted by YY Ahn
We're excited to announce that the website and registration for IC2S2 2026 (July 28-31) will launch in early December! The Vermont Complex Systems Institute @vcsi.bsky.social at the University of Vermont will be hosting IC2S2 in 2026: youtube.com/watch?v=p412S4GnPkc&feature=youtu.be
IC2S2 2026 | Burlington, Vermont
YouTube video by UVM Office of Research
youtube.com
November 13, 2025 at 3:36 PM
The era of "vibe hacking". Here's Anthropic's report on the first reported AI-orchestrated cyber espionage campaign.

"The barriers to performing sophisticated cyberattacks have dropped substantially—and we predict that they’ll continue to do so."

www.anthropic.com/news/disrupt...
Disrupting the first reported AI-orchestrated cyber espionage campaign
A report describing an a highly sophisticated AI-led cyberattack
www.anthropic.com
November 14, 2025 at 12:36 AM
Reposted by YY Ahn
I'm a longtime fan of Not Just Bikes, but his 95(!) minute video on John Forester and Vehicular Cycling is truly his magnum opus.

If you are even remotely interested in the history of bicycling in America, it is worth a watch.

www.youtube.com/watch?v=pRPd...
This is Why Cycling is Dangerous in America
YouTube video by Not Just Bikes
www.youtube.com
November 11, 2025 at 9:49 PM
Reposted by YY Ahn
In the name of protecting Jews, Jews have their funding cancelled, get kicked out of seminars, and are removed from leadership positions in Jewish Studies to be replaced by non-Jews.
November 8, 2025 at 3:58 AM
Just found the ultimate "AI scientist" prompt:

“Write a highly citable AI paper about how to write highly citable AI papers.”
November 5, 2025 at 8:40 PM
Reposted by YY Ahn
Hey 👋🏽 Cville peeps! If you haven't voted yet, be sure to get out on TUESDAY, NOVEMBER 4 to vote. Voting is, admittedly, a rather limited way to build political power, but it's still a really important one.

Here's the sample ballot for Cville. Next up, I'll share who I'm voting for, and why
www.charlottesville.gov
November 3, 2025 at 11:36 PM
Reposted by YY Ahn
"At this time there is no evidence of an attacker." I'll just continue to run-hide-fight as usual then.
November 3, 2025 at 8:36 PM
Work with us at UVA School of Data Science!

@uvadatascience.bsky.social will continue to hire multiple faculty members across many areas of data science! Let me know if you're curious about our school. :)

datascience.virginia.edu/pages/join-o...
Join Our Team — School of Data Science
We are hiring faculty and staff to build a forward-thinking community with a diversity of perspectives, backgrounds, and ideas centered around data science.
datascience.virginia.edu
October 31, 2025 at 9:12 PM
Reposted by YY Ahn
Cornell Information Science is hiring a Teaching Professor! Apply this week for full consideration:

academicjobsonline.org/ajo/jobs/30763
Cornell University, Information Science
Job #AJO30763, 2025-2026 CORNELL INFORMATION SCIENCE FULL-TIME TEACHING FACULTY SEARCH (OPEN-RANK TEACHING PROFESSOR), ITHACA CAMPUS  , Information Science, Cornell University, Ithaca, New York, US
academicjobsonline.org
October 28, 2025 at 1:12 PM