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Hewu Li

4 accepted papers

2025

An Engorgio Prompt Makes Large Language Model Babble on

ICLR 2025poster

Auto-regressive large language models (LLMs) have yielded impressive performance in many real-world tasks. However, the new paradigm of these LLMs also exposes novel threats. In this paper, we explore their vulnerability to inference cost attacks, where a malicious user crafts Engorgio prompts to…

2025

Speculating LLMs’ Chinese Training Data Pollution from Their Tokens

EMNLP 2025

Tokens are basic elements in the datasets for LLM training. It is well-known that many tokens representing Chinese phrases in the vocabulary of GPT (4o/4o-mini/o1/o3/4.5/4.1/o4-mini) are indicating contents like pornography or online gambling. Based on this observation, our goal is to locate Pollute

2025

Understanding the Dark Side of LLMs’ Intrinsic Self-Correction

ACL 2025long

Intrinsic self-correction was initially proposed to improve LLMs’ responses via feedback solely based on their inherent capability. However, recent works show that LLMs’ intrinsic self-correction fails without oracle labels as feedback. In this paper, our research goal is to *interpret LLMs’ intrins…

Cited by 0SourcePDFScholar
2024

COSMIC: Compress Satellite Image Efficiently via Diffusion Compensation

NeurIPS 2024poster

With the rapidly increasing number of satellites in space and their enhanced capabilities, the amount of earth observation images collected by satellites is exceeding the transmission limits of satellite-to-ground links. Although existing learned image compression solutions achieve remarkable perfor…

Cited by 1SourcePDFScholar