collaborators

5 papers

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…

cs.CL2026

SkillRAE: Agent Skill-Based Context Compilation for Retrieval-Augmented Execution

Xiangcheng Meng, Shu Wang, Yixiang Fang

Large Language Model (LLM)-based agents (e.g., OpenClaw) increasingly rely on reusable skill libraries to solve artifact-rich tasks such as document-centric workflows and data-inte…

cs.IR2026

ArchRAG: Attributed Community-based Hierarchical Retrieval-Augmented Generation

Shu Wang, Yixiang Fang, Yingli Zhou +2

Retrieval-Augmented Generation (RAG) has proven effective in integrating external knowledge into large language models (LLMs) for solving question-answer (QA) tasks. The state-of-t…

cs.IR2026

In-depth Analysis of Graph-based RAG in a Unified Framework

Yingli Zhou, Yaodong Su, Youran Sun +8

Graph-based Retrieval-Augmented Generation (RAG) has proven effective in integrating external knowledge into large language models (LLMs), improving their factual accuracy, adaptab…

cs.IR2025

BookRAG: A Hierarchical Structure-aware Index-based Approach for Retrieval-Augmented Generation on Complex Documents

Shu Wang, Yingli Zhou, Yixiang Fang

As an effective method to boost the performance of Large Language Models (LLMs) on the question answering (QA) task, Retrieval-Augmented Generation (RAG), which queries highly rele…