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Andrew Zhao

12 accepted papers

2026

ExCyTIn-Bench: Evaluating LLM agents on Cyber Threat Investigation

ICML 2026poster

We present \textbf{ExCyTIn-Bench}, the first benchmark to \textbf{E}valuate an LLM agent \textbf{X} on the task of \textbf{Cy}ber \textbf{T}hreat \textbf{In}vestigation through security questions derived from investigation graphs. Real‑world security analysts must sift through a large number of hete…

Cited by 0SourceScholar
2025

Absolute Zero: Reinforced Self-play Reasoning with Zero Data

NeurIPS 2025spotlight

Reinforcement learning with verifiable rewards (RLVR) has shown promise in enhancing the reasoning capabilities of large language models by learning directly from rule-based outcome rewards. Recent RLVR works that operate under the zero setting avoid supervision in labeling the reasoning process, bu…

Cited by 0SourceScholar
2025

Beyond the 80/20 Rule: High-Entropy Minority Tokens Drive Effective Reinforcement Learning for LLM Reasoning

NeurIPS 2025poster

Reinforcement Learning with Verifiable Rewards (RLVR) has emerged as a powerful approach to enhancing the reasoning capabilities of Large Language Models (LLMs), yet its underlying mechanisms remain insufficiently understood. In this work, we undertake a pioneering exploration of RLVR through the no…

Cited by 0SourceScholar
2025

DiveR-CT: Diversity-enhanced Red Teaming Large Language Model Assistants with Relaxing Constraints

AAAI 2025technical

Recent advances in large language model assistants have made them indispensable, raising significant concerns over managing their safety. Automated red teaming offers a promising alternative to the labor-intensive and error-prone manual probing for vulnerabilities, providing more consistent and scal…

2025

Does Reinforcement Learning Really Incentivize Reasoning Capacity in LLMs Beyond the Base Model?

NeurIPS 2025oral

Reinforcement Learning with Verifiable Rewards (RLVR) has recently demonstrated notable success in enhancing the reasoning performance of large language models (LLMs), particularly in mathematics and programming tasks. It is widely believed that, similar to how traditional RL helps agents to explor…

Cited by 0SourceScholar
2025

Model Surgery: Modulating LLM’s Behavior Via Simple Parameter Editing

NAACL 2025long

Large Language Models (LLMs) have demonstrated great potential as generalist assistants, showcasing powerful task understanding and problem-solving capabilities. To deploy LLMs as AI assistants, it is crucial that these models exhibit desirable behavioral traits, such as non-toxicity and resilience…

2024

Boosting LLM Agents with Recursive Contemplation for Effective Deception Handling

ACL 2024findings

Recent advances in large language models (LLMs) have led to significant success in using LLMs as agents. Nevertheless, a common assumption that LLMs always process honest information neglects the widespread deceptive or misleading content in human and AI-generated material. This oversight might expo…

2024

ExpeL: LLM Agents Are Experiential Learners

AAAI 2024technical

The recent surge in research interest in applying large language models (LLMs) to decision-making tasks has flourished by leveraging the extensive world knowledge embedded in LLMs. While there is a growing demand to tailor LLMs for custom decision-making tasks, finetuning them for specific tasks is…

2024

Exploring Temporal Feature Correlation for Efficient and Stable Video Semantic Segmentation

AAAI 2024technical

This paper tackles the problem of efficient and stable video semantic segmentation. While stability has been under-explored, prevalent work in efficient video semantic segmentation uses the keyframe paradigm. They efficiently process videos by only recomputing the low-level features and reusing high…

2022

A Mixture Of Surprises for Unsupervised Reinforcement Learning

NeurIPS 2022accept

Unsupervised reinforcement learning aims at learning a generalist policy in a reward-free manner for fast adaptation to downstream tasks. Most of the existing methods propose to provide an intrinsic reward based on surprise. Maximizing or minimizing surprise drives the agent to either explore or gai…

2022

Provable General Function Class Representation Learning in Multitask Bandits and MDP

NeurIPS 2022accept

While multitask representation learning has become a popular approach in reinforcement learning (RL) to boost the sample efficiency, the theoretical understanding of why and how it works is still limited. Most previous analytical works could only assume that the representation function is already kn…

Cited by 10SourcePDFScholar
2021

DMotion: Robotic Visuomotor Control with Unsupervised Forward Model Learned from Videos

IROS 2021poster

Learning an accurate model of the environment is essential for model-based control tasks. Existing methods in robotic visuomotor control usually learn from data with heavily labelled actions, object entities or locations, which can be demanding in many cases. To cope with this limitation, we propose…

Cited by 2SourcecodeScholar