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Qinhan Yu

2 accepted papers

2025

HopRAG: Multi-Hop Reasoning for Logic-Aware Retrieval-Augmented Generation

ACL 2025finding

Retrieval-Augmented Generation (RAG) systems often struggle with imperfect retrieval, as traditional retrievers focus on lexical or semantic similarity rather than logical relevance. To address this, we propose HopRAG, a novel RAG framework that augments retrieval with logical reasoning through grap…

Cited by 0SourcePDFScholar
2025

QAEncoder: Towards Aligned Representation Learning in Question Answering Systems

ACL 2025long

Modern QA systems entail retrieval-augmented generation (RAG) for accurate and trustworthy responses. However, the inherent gap between user queries and relevant documents hinders precise matching. We introduce QAEncoder, a training-free approach to bridge this gap. Specifically, QAEncoder estimates…