activity
20242026
most citedA Theoretical Understanding of Chain-of-Thought: Coherent Reasoning and Error-Aware Demonstration

3 citations · 9 across the 16 of their papers we have counts for

collaborators

16 papers

cs.LG2026

Co-RedTeam: Orchestrated Security Discovery and Exploitation with LLM Agents

Pengfei He, Ash Fox, Lesly Miculicich +7

Large language models (LLMs) have shown promise in assisting cybersecurity tasks, yet existing approaches struggle with automatic vulnerability discovery and exploitation due to li…

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.CY2025★ 1 cited

A LLM-Driven Multi-Agent Systems for Professional Development of Mathematics Teachers

Kaiqi Yang, Hang Li, Yucheng Chu +4

Professional development (PD) serves as the cornerstone for teacher tutors to grasp content knowledge. However, providing equitable and timely PD opportunities for teachers poses s…

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.AI2025★ 2 cited

How Memory Management Impacts LLM Agents: An Empirical Study of Experience-Following Behavior

Zidi Xiong, Yuping Lin, Wenya Xie +5

Memory is a critical component in large language model (LLM)-based agents, enabling them to store and retrieve past executions to improve task performance over time. In this paper,…

cs.LG2025★ 1 cited

Memory Injection Attacks on LLM Agents via Query-Only Interaction

Shen Dong, Shaochen Xu, Pengfei He +5

Agents powered by large language models (LLMs) have demonstrated strong capabilities in a wide range of complex, real-world applications. However, LLM agents with a compromised mem…

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

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.CL2025

Reasoning with Graphs: Structuring Implicit Knowledge to Enhance LLMs Reasoning

Haoyu Han, Yaochen Xie, Hui Liu +8

Large language models (LLMs) have demonstrated remarkable success across a wide range of tasks; however, they still encounter challenges in reasoning tasks that require understandi…

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…

cs.AI2024

Learning with Less: Knowledge Distillation from Large Language Models via Unlabeled Data

Juanhui Li, Sreyashi Nag, Hui Liu +7

In real-world NLP applications, Large Language Models (LLMs) offer promising solutions due to their extensive training on vast datasets. However, the large size and high computatio…

cs.CL2024★ 3 cited

A Theoretical Understanding of Chain-of-Thought: Coherent Reasoning and Error-Aware Demonstration

Yingqian Cui, Pengfei He, Xianfeng Tang +4

Few-shot Chain-of-Thought (CoT) prompting has demonstrated strong performance in improving the reasoning capabilities of large language models (LLMs). While theoretical investigati…

cs.LG2024★ 1 cited

Make LLMs better zero-shot reasoners: Structure-orientated autonomous reasoning

Pengfei He, Zitao Li, Yue Xing +3

Zero-shot reasoning methods with Large Language Models (LLMs) offer significant advantages including great generalization to novel tasks and reduced dependency on human-crafted exa…

cs.LG2024

Towards the Effect of Examples on In-Context Learning: A Theoretical Case Study

Pengfei He, Yingqian Cui, Han Xu +4

In-context learning (ICL) has emerged as a powerful capability for large language models (LLMs) to adapt to downstream tasks by leveraging a few (demonstration) examples. Despite i…

cs.AI2024

A LLM-Powered Automatic Grading Framework with Human-Level Guidelines Optimization

Yucheng Chu, Hang Li, Kaiqi Yang +4

Open-ended short-answer questions (SAGs) have been widely recognized as a powerful tool for providing deeper insights into learners' responses in the context of learning analytics…