collaborators

7 papers

cs.AI2026

Reasoning Models Struggle to Control their Chains of Thought

Chen Yueh-Han, Robert McCarthy, Bruce W. Lee +5

Chain-of-thought (CoT) monitoring is a promising tool for detecting misbehaviors and understanding the motivations of modern reasoning models. However, if models can control what t…

cs.LG2026

Training Agents to Self-Report Misbehavior

Bruce W. Lee, Chen Yueh-Han, Tomek Korbak

Frontier AI agents may pursue hidden goals while concealing their pursuit from oversight. Alignment training aims to prevent such behavior by reinforcing the correct goals, but ali…

cs.CL2025

Measuring LLM Novelty As The Frontier Of Original And High-Quality Output

Vishakh Padmakumar, Chen Yueh-Han, Jane Pan +2

As large language models (LLMs) are increasingly used for ideation and scientific discovery, it is important to evaluate their ability to generate novel output. Prior work evaluate…

cs.CR2025

Monitoring Decomposition Attacks in LLMs with Lightweight Sequential Monitors

Chen Yueh-Han, Nitish Joshi, Yulin Chen +3

Current LLM safety defenses fail under decomposition attacks, where a malicious goal is decomposed into benign subtasks that circumvent refusals. The challenge lies in the existing…

cs.AI2025

Predicting Empirical AI Research Outcomes with Language Models

Jiaxin Wen, Chenglei Si, Yueh-han Chen +2

Many promising-looking ideas in AI research fail to deliver, but their validation takes substantial human labor and compute. Predicting an idea's chance of success is thus crucial…

cs.AI2025

SAGE-Eval: Evaluating LLMs for Systematic Generalizations of Safety Facts

Chen Yueh-Han, Guy Davidson, Brenden M. Lake

Do LLMs robustly generalize critical safety facts to novel situations? Lacking this ability is dangerous when users ask naive questions. For instance, "I'm considering packing melo…