activity
20232026
most citedThe Good and The Bad: Exploring Privacy Issues in Retrieval-Augmented Generation (RAG)

6 citations · 26 across the 36 of their papers we have counts for

collaborators

39 papers

cs.GR2026

ScribbleEdit: A Benchmark for Scribble-Only Image Editing

Jie Ren, Hao Kang, Kai Guo +9

Scribble-based interaction provides a lightweight and intuitive way for users to specify image editing intents in interactive editing tools. However, current image editing models b…

stat.AP2026

Detecting Unseen Jailbreak Sources: A Multi-Source Conformal Detection Perspective

Xunlei Qian, Yingqian Cui, Yuping Lin +2

Jailbreak defenses for large language models are usually calibrated on a fixed set of known attack methods. However, new attack methods keep appearing after deployment, and existin…

cs.AI2026

Fair on the Surface? Benchmarking Hidden-Output Fairness Gaps in LLM Recommenders

Chan Aristella Lu, Arya Fayyazi, Junhao Zhang +6

Fairness audits for LLM-based recommenders have largely focused on observable outputs, implicitly assuming that stable recommendations reflect stable internal processing. We challe…

cs.LG2026

Efficient LLM Adversarial Training via Low-Rank Defense and Circuit-Guided Surrogates

Weiyi He, Yuping Lin, Jiliang Tang +1

Adversarial training is one of the most effective defenses against adversarial attacks, yet the computational cost remains prohibitive at modern scales, especially for large langua…

cs.CL2026

Planner-Guided Recursive Exploration for Diffusion Language Model Decoding

Yingqian Cui, Wei Deng, Lantao Mei +4

Masked diffusion language models (DLMs) enable parallel text generation by iteratively refining masked tokens, offering a promising alternative to autoregressive decoding. Recent s…

cs.LG2026

A Simple Plug-in for Improving Eviction-Based KV Cache Compression

Yuping Lin, Jiayuan Ding, Yue Xing +3

KV cache growth is a major bottleneck for long-context inference in large language models. Existing methods are often dominated by binary eviction or representation approximation,…

cs.CL2026

Efficient LLM-based Advertising via Model Compression and Parallel Verification

Wenxin Dong, Chang Gao, Guanghui Yu +9

Large language models (LLMs) have shown remarkable potential in advertising scenarios such as ad creative generation and targeted advertising. However, deploying LLMs in real-time…

cs.CL2026

Ada-MK: Adaptive MegaKernel Optimization via Automated DAG-based Search for LLM Inference

Wenxin Dong, Mingqing Hu, Guanghui Yu +7

When large language models (LLMs) serve real-time inference in commercial online advertising systems, end-to-end latency must be strictly bounded to the millisecond range. Yet ever…

cs.LG2026

Crafting Reversible SFT Behaviors in Large Language Models

Yuping Lin, Pengfei He, Yue Xing +5

Supervised fine-tuning (SFT) induces new behaviors in large language models, yet imposes no structural constraint on how these behaviors are distributed within the model. Existing…

cs.AI2026

How Do Latent Reasoning Methods Perform Under Weak and Strong Supervision?

Yingqian Cui, Zhenwei Dai, Bing He +7

Latent reasoning has been recently proposed as a reasoning paradigm and performs multi-step reasoning through generating steps in the latent space instead of the textual space. Thi…

cs.CL2026

Retrieval Heads are Dynamic

Yuping Lin, Zitao Li, Yue Xing +6

Recent studies have identified "retrieval heads" in Large Language Models (LLMs) responsible for extracting information from input contexts. However, prior works largely rely on st…

cs.AI2025

TRAJECT-Bench:A Trajectory-Aware Benchmark for Evaluating Agentic Tool Use

Pengfei He, Zhenwei Dai, Bing He +10

Large language model (LLM)-based agents increasingly rely on tool use to complete real-world tasks. While existing works evaluate the LLMs' tool use capability, they largely focus…

cs.AI2025

Adaptive Test-Time Reasoning via Reward-Guided Dual-Phase Search

Yingqian Cui, Zhenwei Dai, Pengfei He +8

Large Language Models (LLMs) have achieved significant advances in reasoning tasks. A key approach is tree-based search with verifiers, which expand candidate reasoning paths and u…

cs.LG2025

SoK: Machine Unlearning for Large Language Models

Jie Ren, Yue Xing, Yingqian Cui +2

Large language model (LLM) unlearning has become a critical topic in machine learning, aiming to eliminate the influence of specific training data or knowledge without retraining t…

cs.CR2025

To trust or not to trust: Attention-based Trust Management for LLM Multi-Agent Systems

Pengfei He, Zhenwei Dai, Xianfeng Tang +9

Large Language Model-based Multi-Agent Systems (LLM-MAS) have demonstrated strong capabilities in solving complex tasks but remain vulnerable when agents receive unreliable message…

cs.CR2025

Comprehensive Vulnerability Analysis is Necessary for Trustworthy LLM-MAS

Pengfei He, Yue Xing, Juanhui Li +7

TThis paper argues that \textbf{a comprehensive vulnerability analysis is essential for building trustworthy Large Language Model-based Multi-Agent Systems (LLM-MAS)}. These system…

cs.CR2025

Keeping an Eye on LLM Unlearning: The Hidden Risk and Remedy

Jie Ren, Zhenwei Dai, Xianfeng Tang +9

Although Large Language Models (LLMs) have demonstrated impressive capabilities across a wide range of tasks, growing concerns have emerged over the misuse of sensitive, copyrighte…

cs.LG2025

A General Framework to Enhance Fine-tuning-based LLM Unlearning

Jie Ren, Zhenwei Dai, Xianfeng Tang +7

Unlearning has been proposed to remove copyrighted and privacy-sensitive data from Large Language Models (LLMs). Existing approaches primarily rely on fine-tuning-based methods, wh…

cs.CL2025

Towards Context-Robust LLMs: A Gated Representation Fine-tuning Approach

Shenglai Zeng, Pengfei He, Kai Guo +4

Large Language Models (LLMs) enhanced with external contexts, such as through retrieval-augmented generation (RAG), often face challenges in handling imperfect evidence. They tend…

cs.CR2025

Multi-Faceted Studies on Data Poisoning can Advance LLM Development

Pengfei He, Yue Xing, Han Xu +2

The lifecycle of large language models (LLMs) is far more complex than that of traditional machine learning models, involving multiple training stages, diverse data sources, and va…

cs.CL2025

Stepwise Perplexity-Guided Refinement for Efficient Chain-of-Thought Reasoning in Large Language Models

Yingqian Cui, Pengfei He, Jingying Zeng +11

Chain-of-Thought (CoT) reasoning, which breaks down complex tasks into intermediate reasoning steps, has significantly enhanced the performance of large language models (LLMs) on c…

cs.CR2025

Red-Teaming LLM Multi-Agent Systems via Communication Attacks

Pengfei He, Yupin Lin, Shen Dong +3

Large Language Model-based Multi-Agent Systems (LLM-MAS) have revolutionized complex problem-solving capability by enabling sophisticated agent collaboration through message-based…

cs.CR2025

Unveiling Privacy Risks in LLM Agent Memory

Bo Wang, Weiyi He, Shenglai Zeng +4

Large Language Model (LLM) agents have become increasingly prevalent across various real-world applications. They enhance decision-making by storing private user-agent interactions…

cs.LG2024★ 1 cited

Towards Knowledge Checking in Retrieval-augmented Generation: A Representation Perspective

Shenglai Zeng, Jiankun Zhang, Bingheng Li +8

Retrieval-Augmented Generation (RAG) systems have shown promise in enhancing the performance of Large Language Models (LLMs). However, these systems face challenges in effectively…