Zhiwei He

4 papers Shanghai Jiao Tong University

• The First Few Tokens Are All You Need: An Efficient and Effective Unsupervised Prefix Fine-Tuning Method for Reasoning Models
• Thoughts Are All Over the Place: On the Underthinking of Long Reasoning Models
• Trust, But Verify: A Self-Verification Approach to Reinforcement Learning with Verifiable Rewards
• Two Experts Are All You Need for Steering Thinking: Reinforcing Cognitive Effort in MoE Reasoning Models Without Additional Training