Piotr Sapiezynski

An announcement for the "Finding and using undocumented APIs" tutorial at NICAR 2025, Friday, March 7 at 3:30-4:30pm. Located at Gray's Bay, 8th floor. Images of Leon Yin and Piotr Sapiezynski.

This Friday at @ire-nicar.bsky.social myself and @leonyin.org will be teaching how to can find and use undocumented API and build your own datasets. Come say hi and learn something new!

05.03.2025 16:52 — 👍 15    🔁 2    💬 0    📌 1

On the Use of Proxies in Political Ad Targeting | Proceedings of the ACM on Human-Computer Interaction Detailed targeting of advertisements has long been one of the core offerings of online platforms. Unfortunately, malicious advertisers have frequently abused such targeting features, with results that...

Pretty blown away by this paper from Piotr Sapiezynski and team at Northeastern and Princeton, presented at #CSCW2024: dl.acm.org/doi/10.1145/...
For lots of good legal and moral reasons, Facebook doesn't allow advertisers to explicitly target ads to "White Republicans" or "Black Democrats"..

13.11.2024 20:10 — 👍 43    🔁 19    💬 2    📌 0