collaborators

14 papers

cs.DB2026

DocMaster: A Hierarchical Structure-Aware System for Document Analysis

Ziqi Chen, Yingli Zhou, Fangyuan Zhang +3

Leveraging large language models (LLMs) to analyze complex documents -- such as academic papers, technical manuals, and financial reports -- has emerged as a mainstream and critica…

cs.IR2026

HETERQA: Benchmarking Record Retrieval over Multiple Heterogeneous Sources

Yaodong Su, Hanchang Li, Quanqing Xu +2

In emerging systems (e.g., social media and e-commerce platforms), data records are often drawn from heterogeneous sources, such as relational tables, text documents, image reposit…

cs.SI2026

Maintaining Leiden Communities in Large Dynamic Graphs

Chunxu Lin, Yumao Xie, Yixiang Fang +3

Community detection is a foundational capability in large-scale industrial graph analytics, powering applications such as fraud-ring discovery, recommendation systems, and hierarch…

cs.IR2026

A Comprehensive Survey on Agent Skills: Taxonomy, Techniques, and Applications

Yingli Zhou, Wang Shu, Yaodong Su +3

Large language model (LLM)-based agents that reason, plan, and act through tools, memory, and structured interaction are emerging as a promising paradigm for automating complex wor…

cs.CL2026

H-Mem: A Novel Memory Mechanism for Evolving and Retrieving Agent Memory via a Hybrid Structure

Jiawei Yu, Yixiang Fang, Xilin Liu +1

Memory data are ubiquitous in Large Language Model (LLM)-based agents (e.g., OpenClaw and Manus). A few recent works have attempted to exploit agents'memory for improving their per…

cs.CL2026

ASTRA-QA: A Benchmark for Abstract Question Answering over Documents

Shu Wang, Shansong Zhou, Xinyang Wang +3

Document-based question answering (QA) increasingly includes abstract questions that require synthesizing scattered information from long documents or across multiple documents int…