works on

From the 1 of 8 linked papers with an AI index.

collaborators

8 papers

cs.LG2026

Extractable Memorization From First Principles

A. Feder Cooper, Marika Swanberg, Jamie Hayes +5

The paper introduces formal matched‑comparison methods—using conformal testing and document‑level censuses—to reliably determine when a language model has memorized training data,…

cs.CL2026

Extracting memorized pieces of (copyrighted) books from open-weight language models

A. Feder Cooper, Mark A. Lemley, Allison Casasola +6

Plaintiffs and defendants in copyright lawsuits over generative AI often make sweeping, opposing claims about the extent to which large language models (LLMs) memorize protected ex…

cs.CL2026

Estimating near-verbatim extraction risk in language models with decoding-constrained beam search

A. Feder Cooper, Mark A. Lemley, Christopher De Sa +6

Recent work shows that standard greedy-decoding extraction methods for quantifying memorization in LLMs miss how extraction risk varies across sequences. Probabilistic extraction -…

cs.AI2026

Comparing AI Agents to Cybersecurity Professionals in Real-World Penetration Testing

Justin W. Lin, Eliot Krzysztof Jones, Donovan Julian Jasper +10

We present the first comprehensive evaluation of AI agents against human cybersecurity professionals in a live enterprise environment. We evaluate ten cybersecurity professionals a…

cs.CR2025

BountyBench: Dollar Impact of AI Agent Attackers and Defenders on Real-World Cybersecurity Systems

Andy K. Zhang, Joey Ji, Celeste Menders +31

AI agents have the potential to significantly alter the cybersecurity landscape. Here, we introduce the first framework to capture offensive and defensive cyber-capabilities in evo…

cs.LG2025

Machine Unlearning Doesn't Do What You Think: Lessons for Generative AI Policy and Research

A. Feder Cooper, Christopher A. Choquette-Choo, Miranda Bogen +34

"Machine unlearning" is a popular proposed solution for mitigating the existence of content in an AI model that is problematic for legal or moral reasons, including privacy, copyri…