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Weizheng Gu

3 accepted papers

2026

What Do Agents Learn from Trajectory-SFT: Semantics or Interfaces?

ICML 2026spotlight

Large language models are increasingly evaluated as interactive agents, yet standard agent benchmarks conflate two qualitatively distinct sources of success: semantic tool-use and interface-specific interaction pattern memorization. Because both mechanisms can yield identical task success on the ori…

Cited by 0SourceScholar
2025

Reasoning Through Execution: Unifying Process and Outcome Rewards for Code Generation

ICML 2025poster

Large Language Models excel at code generation yet struggle with complex programming tasks that demand sophisticated reasoning. To bridge this gap, traditional process supervision relies on learned reward models requiring costly training data and suffering from reward misalignment, while outcome su…

2025

SAEMark: Steering Personalized Multilingual LLM Watermarks with Sparse Autoencoders

NeurIPS 2025poster

Watermarking LLM-generated text is critical for content attribution and misinformation prevention, yet existing methods compromise text quality and require white-box model access with logit manipulation or training, which exclude API-based models and multilingual scenarios. We propose SAEMark, an **…

Cited by 0SourceScholar