Papers by Yuheng Bu
A Reinforcement Learning Framework for Robust and Secure LLM Watermarking (2026.eacl-long)
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| Challenge: | Existing watermarking algorithms rely on heuristic green/red token lists . however, these lists are inconsistent and can be compromised . |
| Approach: | They propose a framework for robust and secure LLM watermarking using reinforcement learning. |
| Outcome: | The proposed method achieves state-of-the-art trade-off across all criteria with notable improvements in resistance to spoofing attacks without degrading other criteria. |
Position: LLM Watermarking Should Align Stakeholders’ Incentives for Practical Adoption (2026.findings-acl)
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| Challenge: | despite advances in watermarking algorithms, real-world deployment remains limited . model watermarks can be used to protect intellectual property and promote trust in AI . |
| Approach: | They propose to revisit three classes of watermarking to examine incentives for large language models . model watermarks naturally aligns with LLM provider interests, yet faces new challenges in open-source ecosystems . |
| Outcome: | The proposed methods can be used in dataset decontamination, user-controlled provenance, and in-context watermarking. |
Reliable Gradient-free and Likelihood-free Prompt Tuning (2023.findings-eacl)
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| Challenge: | Large pre-trained language models are often offered as black-box APIs due to privacy or commercial constraints. |
| Approach: | They propose to tune the soft prompts without requiring gradient computation and extend the model to include a distribution over prompts. |
| Outcome: | The proposed methods are competitive with gradient-based approaches with full access to the PLM. |