activity
20232026
most citedMeasuring and Reducing LLM Hallucination without Gold-Standard Answers

9 citations · 28 across the 13 of their papers we have counts for

collaborators

14 papers

cs.LG2026

Multimodal Unlearning Across Vision, Language, Video, and Audio: Survey of Methods, Datasets, and Benchmarks

Nobin Sarwar, Shubhashis Roy Dipta, Zheyuan Liu +1

With the growing adoption of VLMs, DMs, LLMs, and AFMs, these multimodal foundation models can inadvertently encode sensitive, copyrighted, biased, or unsafe cross-modal associatio…

cs.AI2026

Learning Personalized Agents from Human Feedback

Kaiqu Liang, Julia Kruk, Shengyi Qian +9

Modern AI agents are powerful but often fail to align with the idiosyncratic, evolving preferences of individual users. Prior approaches typically rely on static datasets, either t…

cs.AI2024

Robust Multi-bit Text Watermark with LLM-based Paraphrasers

Xiaojun Xu, Jinghan Jia, Yuanshun Yao +2

We propose an imperceptible multi-bit text watermark embedded by paraphrasing with LLMs. We fine-tune a pair of LLM paraphrasers that are designed to behave differently so that the…

cs.CL2024★ 1 cited

ACC-Collab: An Actor-Critic Approach to Multi-Agent LLM Collaboration

Andrew Estornell, Jean-Francois Ton, Yuanshun Yao +1

Large language models (LLMs) have demonstrated a remarkable ability to serve as general-purpose tools for various language-based tasks. Recent works have demonstrated that the effi…

cs.CL2024

Toward Optimal LLM Alignments Using Two-Player Games

Rui Zheng, Hongyi Guo, Zhihan Liu +10

The standard Reinforcement Learning from Human Feedback (RLHF) framework primarily focuses on optimizing the performance of large language models using pre-collected prompts. Howev…

cs.LG2024

Label Smoothing Improves Machine Unlearning

Zonglin Di, Zhaowei Zhu, Jinghan Jia +6

The objective of machine unlearning (MU) is to eliminate previously learned data from a model. However, it is challenging to strike a balance between computation cost and performan…

cs.CL2024

Improving Reinforcement Learning from Human Feedback Using Contrastive Rewards

Wei Shen, Xiaoying Zhang, Yuanshun Yao +3

Reinforcement learning from human feedback (RLHF) is the mainstream paradigm used to align large language models (LLMs) with human preferences. Yet existing RLHF heavily relies on…

cs.LG2024★ 3 cited

Learning to Watermark LLM-generated Text via Reinforcement Learning

Xiaojun Xu, Yuanshun Yao, Yang Liu

We study how to watermark LLM outputs, i.e. embedding algorithmically detectable signals into LLM-generated text to track misuse. Unlike the current mainstream methods that work wi…

cs.LG2024

Fairness Without Harm: An Influence-Guided Active Sampling Approach

Jinlong Pang, Jialu Wang, Zhaowei Zhu +3

The pursuit of fairness in machine learning (ML), ensuring that the models do not exhibit biases toward protected demographic groups, typically results in a compromise scenario. Th…

cs.CL2024★ 9 cited

Measuring and Reducing LLM Hallucination without Gold-Standard Answers

Jiaheng Wei, Yuanshun Yao, Jean-Francois Ton +3

LLM hallucination, i.e. generating factually incorrect yet seemingly convincing answers, is currently a major threat to the trustworthiness and reliability of LLMs. The first step…

cs.LG2024★ 4 cited

Rethinking Machine Unlearning for Large Language Models

Sijia Liu, Yuanshun Yao, Jinghan Jia +11

We explore machine unlearning (MU) in the domain of large language models (LLMs), referred to as LLM unlearning. This initiative aims to eliminate undesirable data influence (e.g.,…

cs.CL2024★ 2 cited

Human-Instruction-Free LLM Self-Alignment with Limited Samples

Hongyi Guo, Yuanshun Yao, Wei Shen +4

Aligning large language models (LLMs) with human values is a vital task for LLM practitioners. Current alignment techniques have several limitations: (1) requiring a large amount o…

cs.LG2023

Fair Classifiers that Abstain without Harm

Tongxin Yin, Jean-François Ton, Ruocheng Guo +3

In critical applications, it is vital for classifiers to defer decision-making to humans. We propose a post-hoc method that makes existing classifiers selectively abstain from pred…

cs.CL2023★ 9 cited

Large Language Model Unlearning

Yuanshun Yao, Xiaojun Xu, Yang Liu

We study how to perform unlearning, i.e. forgetting undesirable misbehaviors, on large language models (LLMs). We show at least three scenarios of aligning LLMs with human preferen…