collaborators

6 papers

cs.LG2026

Best-of-Better-: Generating Pre-Aligned Responses with In-Context Learning

Eric Lei, Hsiang Hsu, Chun-Fu Chen

Inference-time alignment methods, such as Best-of-, offer a flexible alternative to training-based alignment by using reward models to select high-quality responses generated by…

cs.LG2026

Does Privacy Always Harm Fairness? Data-Dependent Trade-offs via Chernoff Information Neural Estimation

Arjun Nichani, Hsiang Hsu, Chun-Fu +2

Fairness and privacy are two vital pillars of trustworthy machine learning. Despite extensive research on these individual topics, their relationship has received significantly les…

cs.AI2026

Best-of-Tails: Bridging Optimism and Pessimism in Inference-Time Alignment

Hsiang Hsu, Eric Lei, Chun-Fu Chen

Inference-time alignment effectively steers large language models (LLMs) by generating multiple candidates from a reference model and selecting among them with an imperfect reward…

cs.AI2025

Probing LLM Hallucination from Within: Perturbation-Driven Approach via Internal Knowledge

Seongmin Lee, Hsiang Hsu, Chun-Fu Chen +1

LLM hallucination, where unfaithful text is generated, presents a critical challenge for LLMs' practical applications. Current detection methods often resort to external knowledge,…

cs.LG2025

PASS: Private Attributes Protection with Stochastic Data Substitution

Yizhuo Chen, Chun-Fu, Chen +3

The growing Machine Learning (ML) services require extensive collections of user data, which may inadvertently include people's private information irrelevant to the services. Vari…

cs.LG2025

OVOR: OnePrompt with Virtual Outlier Regularization for Rehearsal-Free Class-Incremental Learning

Wei-Cheng Huang, Chun-Fu Chen, Hsiang Hsu

Recent works have shown that by using large pre-trained models along with learnable prompts, rehearsal-free methods for class-incremental learning (CIL) settings can achieve superi…