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Yukun Jiang

3 accepted papers

2026

Sparse Models, Sparse Safety: Unsafe Routes in Mixture-of-Experts LLMs

ICML 2026poster

By introducing routers to selectively activate experts in Transformer layers, the mixture-of-experts (MoE) architecture significantly reduces computational costs in large language models (LLMs) while maintaining competitive performance, especially for models with massive parameters. However, prior w…

Cited by 0SourceScholar
2025

Adjacent Words, Divergent Intents: Jailbreaking Large Language Models via Task Concurrency

NeurIPS 2025poster

Despite their superior performance on a wide range of domains, large language models (LLMs) remain vulnerable to misuse for generating harmful content, a risk that has been further amplified by various jailbreak attacks. Existing jailbreak attacks mainly follow sequential logic, where LLMs understan…

Cited by 0SourcecodeScholar
2022

EnvPool: A Highly Parallel Reinforcement Learning Environment Execution Engine

NeurIPS 2022accept

There has been significant progress in developing reinforcement learning (RL) training systems. Past works such as IMPALA, Apex, Seed RL, Sample Factory, and others, aim to improve the system's overall throughput. In this paper, we aim to address a common bottleneck in the RL training system, i.e.,…