collaborators

5 papers

cs.SE2026

DeepRepro: State-Aware Subplanning for Paper-to-Code Reproduction in Evolving Repositories

Hongru Song, Ruqing Zhang, Jiafeng Guo +2

Recent advances in agentic large language models (LLMs) have enabled increasingly autonomous software engineering workflows, yet automatic machine learning (ML) paper-to-code repro…

cs.IR2026

AdversarialCoT: Single-Document Retrieval Poisoning for LLM Reasoning

Hongru Song, Yu-An Liu, Ruqing Zhang +4

Retrieval-augmented generation (RAG) enhances large language model (LLM) reasoning by retrieving external documents, but also opens up new attack surfaces. We study knowledge-base…

cs.IR2025

LLMs as Sparse Retrievers:A Framework for First-Stage Product Search

Hongru Song, Yu-an Liu, Ruqing Zhang +6

Product search is a crucial component of modern e-commerce platforms, with billions of user queries every day. In product search systems, first-stage retrieval should achieve high…

cs.IR2025

The Silent Saboteur: Imperceptible Adversarial Attacks against Black-Box Retrieval-Augmented Generation Systems

Hongru Song, Yu-an Liu, Ruqing Zhang +4

We explore adversarial attacks against retrieval-augmented generation (RAG) systems to identify their vulnerabilities. We focus on generating human-imperceptible adversarial exampl…

cs.IR2025

Chain-of-Thought Poisoning Attacks against R1-based Retrieval-Augmented Generation Systems

Hongru Song, Yu-an Liu, Ruqing Zhang +2

Retrieval-augmented generation (RAG) systems can effectively mitigate the hallucination problem of large language models (LLMs),but they also possess inherent vulnerabilities. Iden…