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Sanqiang Zhao

3 accepted papers

2025

Instructional Segment Embedding: Improving LLM Safety with Instruction Hierarchy

ICLR 2025poster

Large Language Models (LLMs) are susceptible to security and safety threats, such as prompt injection, prompt extraction, and harmful requests. One major cause of these vulnerabilities is the lack of an instruction hierarchy. Modern LLM architectures treat all inputs equally, failing to distinguish…

Cited by 6SourcePDFScholar
2024

WPO: Enhancing RLHF with Weighted Preference Optimization

EMNLP 2024main

Reinforcement learning from human feedback (RLHF) is a promising solution to align large language models (LLMs) more closely with human values. Off-policy preference optimization, where the preference data is obtained from other models, is widely adopted due to its cost efficiency and scalability. H…

2021

An Empirical Study on Neural Keyphrase Generation

NAACL 2021long

Recent years have seen a flourishing of neural keyphrase generation (KPG) works, including the release of several large-scale datasets and a host of new models to tackle them. Model performance on KPG tasks has increased significantly with evolving deep learning research. However, there lacks a comp…