activity
20242026
most citedNoise-Resilient Unsupervised Graph Representation Learning via Multi-Hop Feature Quality Estimation

7 citations · 11 across the 14 of their papers we have counts for

collaborators

15 papers

cs.LG2026

SIM: Subspace Interaction-based Method for Token-Level Text Anomaly Detection

Kehan Yan, Yue Tan, Qingfeng Chen +3

Token-level text anomaly detection, as an emerging trend of text anomaly detection, moves beyond coarse-grained document-level detection by localizing anomalous tokens within text.…

cs.LG2026

Towards Anomaly Detection on Relational Data

Shiyuan Li, Yunfeng Zhao, Yue Tan +3

Relational databases are widely used for managing structured data in real-world systems. Detecting anomalies from such relational data is crucial for identifying fraud, risks, and…

cs.AI2026

CORE: In-Context Reconstruction for Unified Tabular Anomaly Detection

Yunfeng Zhao, Qingfeng Chen, Yue Tan +4

Tabular anomaly detection (TAD), which focuses on identifying abnormal samples that deviate from the majority in tabular data, has received growing attention. Recently, there has b…

cs.LG2026

FedCIGAR: A Personalized Reconstruction Approach for Federated Graph-level Anomaly Detection

Yunfeng Zhao, Yixin Liu, Qingfeng Chen +3

Graph-level anomaly detection (GLAD) is crucial for ensuring the reliability of graph-driven applications by identifying abnormal graphs that deviate from the majority. Considering…

cs.LG2026

GoAgent: Group-of-Agents Communication Topology Generation for LLM-based Multi-Agent Systems

Hongjiang Chen, Xin Zheng, Yixin Liu +7

Large language model (LLM)-based multi-agent systems (MAS) have demonstrated exceptional capabilities in solving complex tasks, yet their effectiveness depends heavily on the under…

cs.LG2026

Towards One-for-All Anomaly Detection for Tabular Data

Shiyuan Li, Yixin Liu, Yu Zheng +3

Tabular anomaly detection (TAD) aims to identify samples that deviate from the majority in tabular data and is critical in many real-world applications. However, existing methods f…

cs.LG2026

From Few-Shot to Zero-Shot: Towards Generalist Graph Anomaly Detection

Yixin Liu, Shiyuan Li, Yu Zheng +4

Graph anomaly detection (GAD) is critical for identifying abnormal nodes in graph-structured data from diverse domains, including cybersecurity and social networks. The existing GA…

cs.CL2026

Beyond a Single Perspective: Text Anomaly Detection with Multi-View Language Representations

Yixin Liu, Kehan Yan, Shiyuan Li +2

Text anomaly detection (TAD) plays a critical role in various language-driven real-world applications, including harmful content moderation, phishing detection, and spam review fil…

cs.MA2026

OFA-MAS: One-for-All Multi-Agent System Topology Design based on Mixture-of-Experts Graph Generative Models

Shiyuan Li, Yixin Liu, Yu Zheng +3

Multi-Agent Systems (MAS) offer a powerful paradigm for solving complex problems, yet their performance is critically dependent on the design of their underlying collaboration topo…

cs.AI2025★ 1 cited

Graph-Augmented Large Language Model Agents: Current Progress and Future Prospects

Yixin Liu, Guibin Zhang, Kun Wang +2

Autonomous agents based on large language models (LLMs) have demonstrated impressive capabilities in a wide range of applications, including web navigation, software development, a…

cs.LG2025★ 1 cited

FreeGAD: A Training-Free yet Effective Approach for Graph Anomaly Detection

Yunfeng Zhao, Yixin Liu, Shiyuan Li +3

Graph Anomaly Detection (GAD) aims to identify nodes that deviate from the majority within a graph, playing a crucial role in applications such as social networks and e-commerce. D…

cs.MA2025

Assemble Your Crew: Automatic Multi-agent Communication Topology Design via Autoregressive Graph Generation

Shiyuan Li, Yixin Liu, Qingsong Wen +2

Multi-agent systems (MAS) based on large language models (LLMs) have emerged as a powerful solution for dealing with complex problems across diverse domains. The effectiveness of M…

cs.LG2025

Uncertainty-Aware Graph Neural Networks: A Multi-Hop Evidence Fusion Approach

Qingfeng Chen, Shiyuan Li, Yixin Liu +3

Graph neural networks (GNNs) excel in graph representation learning by integrating graph structure and node features. Existing GNNs, unfortunately, fail to account for the uncertai…

cs.LG2024★ 7 cited

Noise-Resilient Unsupervised Graph Representation Learning via Multi-Hop Feature Quality Estimation

Shiyuan Li, Yixin Liu, Qingfeng Chen +2

Unsupervised graph representation learning (UGRL) based on graph neural networks (GNNs), has received increasing attention owing to its efficacy in handling graph-structured data.…

cs.LG2024★ 2 cited

ARC: A Generalist Graph Anomaly Detector with In-Context Learning

Yixin Liu, Shiyuan Li, Yu Zheng +3

Graph anomaly detection (GAD), which aims to identify abnormal nodes that differ from the majority within a graph, has garnered significant attention. However, current GAD methods…