← Search

Chenkai Sun

6 accepted papers

2025

Beyond Reactive Safety: Risk-Aware LLM Alignment via Long-Horizon Simulation

ACL 2025finding

Given the growing influence of language model-based agents on high-stakes societal decisions, from public policy to healthcare, ensuring their beneficial impact requires understanding the far-reaching implications of their suggestions. We propose a proof-of-concept framework that projects how model-…

2025

Persona-DB: Efficient Large Language Model Personalization for Response Prediction with Collaborative Data Refinement

COLING 2025main

The increasing demand for personalized interactions with large language models (LLMs) calls for methodologies capable of accurately and efficiently identifying user opinions and preferences. Retrieval augmentation emerges as an effective strategy, as it can accommodate a vast number of users without…

Cited by 17SourcePDFScholar
2024

Cascade Speculative Drafting for Even Faster LLM Inference

NeurIPS 2024poster

Introduced to enhance the efficiency of large language model (LLM) inference, speculative decoding operates by having a smaller model generate a draft. A larger target model then reviews this draft to align with its output, and any acceptance by the target model results in a reduction of the number…

2024

Word Embeddings Are Steers for Language Models

ACL 2024long

Language models (LMs) automatically learn word embeddings during pre-training on language corpora. Although word embeddings are usually interpreted as feature vectors for individual words, their roles in language model generation remain underexplored. In this work, we theoretically and empirically r…

2023

Decoding the Silent Majority: Inducing Belief Augmented Social Graph with Large Language Model for Response Forecasting

EMNLP 2023long main

Automatic response forecasting for news media plays a crucial role in enabling content producers to efficiently predict the impact of news releases and prevent unexpected negative outcomes such as social conflict and moral injury. To effectively forecast responses, it is essential to develop measure…

Cited by 0SourcecodeScholar
2023

Measuring the Effect of Influential Messages on Varying Personas

ACL 2023short

Predicting how a user responds to news events enables important applications such as allowing intelligent agents or content producers to estimate the effect on different communities and revise unreleased messages to prevent unexpected bad outcomes such as social conflict and moral injury. We present…