activity
20242026
most citedUniGraph: Learning a Unified Cross-Domain Foundation Model for Text-Attributed Graphs

4 citations · 8 across the 22 of their papers we have counts for

collaborators
Showing cs.AIShow all

7 papers · 1 filter

cs.AI2026

TACT: Mitigating Overthinking and Overacting in Coding Agents via Activation Steering

Yuan Sui, Yulin Chen, Yibo Li +6

When language model agents tackle complex software engineering tasks, they often degrade over long trajectories, which we define as *agent drift*. We focus on two recurring failure…

cs.AI2026

EvoClinician: A Self-Evolving Agent for Multi-Turn Medical Diagnosis via Test-Time Evolutionary Learning

Yufei He, Juncheng Liu, Zhiyuan Hu +9

Prevailing medical AI operates on an unrealistic ''one-shot'' model, diagnosing from a complete patient file. However, real-world diagnosis is an iterative inquiry where Clinicians…

cs.AI2025

EvoTest: Evolutionary Test-Time Learning for Self-Improving Agentic Systems

Yufei He, Juncheng Liu, Yue Liu +5

A fundamental limitation of current AI agents is their inability to learn complex skills on the fly at test time, often behaving like "clever but clueless interns" in novel environ…

cs.AI2025

FlowReasoner: Reinforcing Query-Level Meta-Agents

Hongcheng Gao, Yue Liu, Yufei He +6

This paper proposes a query-level meta-agent named FlowReasoner to automate the design of query-level multi-agent systems, i.e., one system per user query. Our core idea is to ince…

cs.AI2025

Evaluating the Paperclip Maximizer: Are RL-Based Language Models More Likely to Pursue Instrumental Goals?

Yufei He, Yuexin Li, Jiaying Wu +3

As large language models (LLMs) continue to evolve, ensuring their alignment with human goals and values remains a pressing challenge. A key concern is \textit{instrumental converg…

cs.AI2025

Meta-Reasoner: Dynamic Guidance for Optimized Inference-time Reasoning in Large Language Models

Yuan Sui, Yufei He, Tri Cao +3

Large Language Models (LLMs) often struggle with computational efficiency and error propagation in multi-step reasoning tasks. While recent advancements on prompting and post-train…

cs.AI2024★ 3 cited

FiDeLiS: Faithful Reasoning in Large Language Model for Knowledge Graph Question Answering

Yuan Sui, Yufei He, Nian Liu +3

Large Language Models (LLMs) are often challenged by generating erroneous or hallucinated responses, especially in complex reasoning tasks. Leveraging Knowledge Graphs (KGs) as ext…