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Chengkun Wei

5 accepted papers

2026

Dynamic Thinking-Token Selection for Efficient Reasoning in Large Reasoning Models

ICML 2026poster

Large Reasoning Models (LRMs) excel at solving complex problems by explicitly generating a reasoning trace before deriving the final answer. However, these extended generations incur substantial memory footprint and computational overhead, bottlenecking LRMs' efficiency. This work uses attention map…

Cited by 0SourceScholar
2026

Enhancing Meme Emotion Understanding with Multi-Level Modality Enhancement and Dual-Stage Modal Fusion

AAAI 2026technical

With the rapid rise of social media and Internet culture, memes have become a popular medium for expressing emotional tendencies. This has sparked growing interest in Meme Emotion Understanding (MEU), which aims to classify the emotional intent behind memes by leveraging their multimodal contents. W

Cited by 0SourcePDFScholar
2025

Be Cautious When Merging Unfamiliar LLMs: A Phishing Model Capable of Stealing Privacy

ACL 2025finding

Model merging is a widespread technology in large language models (LLMs) that integrates multiple task-specific LLMs into a unified one, enabling the merged model to inherit the specialized capabilities of these LLMs. Most task-specific LLMs are sourced from open-source communities and have not unde…

2025

R.R.: Unveiling LLM Training Privacy through Recollection and Ranking

ACL 2025finding

Large Language Models (LLMs) pose significant privacy risks, potentially leaking training data due to implicit memorization. Existing privacy attacks primarily focus on membership inference attacks (MIAs) or data extraction attacks, but reconstructing specific personally identifiable information (PI…