activity
20172026
most citedSemantic Models for the First-stage Retrieval: A Comprehensive Review

117 citations · 529 across the 70 of their papers we have counts for

collaborators

70 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.CR2026

Token-Flow Firewall: Semantic Runtime Auditing for Persistent AI Agents

Puji Wang, Yingchen Zhang, Ruqing Zhang +2

Persistent AI agents extend large language models (LLMs) beyond single-turn interaction into long-lived software systems. Unlike traditional chat assistants, unsafe content in thes…

cs.IR2026

Querit-Reranker: Training Compact Multilingual Rerankers via Efficient Label-Free Distribution Adaptation

Yunfei Zhong, Jun Yang, Wei Huang +7

A deployable multilingual reranker must not only generalize across languages, domains, and ranking tasks, but also remain efficient to serve as a second-stage reranker in practical…

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.CL2025

Thinking Forward and Backward: Multi-Objective Reinforcement Learning for Retrieval-Augmented Reasoning

Wenda Wei, Yu-An Liu, Ruqing Zhang +6

Retrieval-augmented generation (RAG) has proven to be effective in mitigating hallucinations in large language models, yet its effectiveness remains limited in complex, multi-step…

cs.IR2025

C2T-ID: Converting Semantic Codebooks to Textual Document Identifiers for Generative Search

Yingchen Zhang, Ruqing Zhang, Jiafeng Guo +4

Designing document identifiers (docids) that carry rich semantic information while maintaining tractable search spaces is a important challenge in generative retrieval (GR). Popula…

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

A Generative Framework for Personalized Sticker Retrieval

Changjiang Zhou, Ruqing Zhang, Jiafeng Guo +4

Formulating information retrieval as a variant of generative modeling, specifically using autoregressive models to generate relevant identifiers for a given query, has recently att…

cs.IR2025

Retrieval-in-the-Chain: Bootstrapping Large Language Models for Generative Retrieval

Yingchen Zhang, Ruqing Zhang, Jiafeng Guo +3

Generative retrieval (GR) is an emerging paradigm that leverages large language models (LLMs) to autoregressively generate document identifiers (docids) relevant to a given query.…

cs.IR2025★ 1 cited

VeriCite: Towards Reliable Citations in Retrieval-Augmented Generation via Rigorous Verification

Haosheng Qian, Yixing Fan, Jiafeng Guo +4

Retrieval-Augmented Generation (RAG) has emerged as a crucial approach for enhancing the responses of large language models (LLMs) with external knowledge sources. Despite the impr…

cs.IR2025

Does Generative Retrieval Overcome the Limitations of Dense Retrieval?

Yingchen Zhang, Ruqing Zhang, Jiafeng Guo +3

Generative retrieval (GR) has emerged as a new paradigm in neural information retrieval, offering an alternative to dense retrieval (DR) by directly generating identifiers of relev…

cs.IR2025

Reason to Retrieve: Enhancing Query Understanding through Decomposition and Interpretation

Yunfei Zhong, Jun Yang, Yixing Fan +4

Query understanding (QU) aims to accurately infer user intent to improve document retrieval. It plays a vital role in modern search engines. While large language models (LLMs) have…

cs.IR2025

On the Scaling of Robustness and Effectiveness in Dense Retrieval

Yu-An Liu, Ruqing Zhang, Jiafeng Guo +3

Robustness and Effectiveness are critical aspects of developing dense retrieval models for real-world applications. It is known that there is a trade-off between the two. Recent wo…

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…

cs.IR2025

An Empirical Study of Evaluating Long-form Question Answering

Ning Xian, Yixing Fan, Ruqing Zhang +2

\Ac{LFQA} aims to generate lengthy answers to complex questions. This scenario presents great flexibility as well as significant challenges for evaluation. Most evaluations rely on…

cs.IR2025

Robust-IR @ SIGIR 2025: The First Workshop on Robust Information Retrieval

Yu-An Liu, Haya Nachimovsky, Ruqing Zhang +3

With the advancement of information retrieval (IR) technologies, robustness is increasingly attracting attention. When deploying technology into practice, we consider not only its…

cs.IR2025

TrustRAG: An Information Assistant with Retrieval Augmented Generation

Yixing Fan, Qiang Yan, Wenshan Wang +3

\Ac{RAG} has emerged as a crucial technique for enhancing large models with real-time and domain-specific knowledge. While numerous improvements and open-source tools have been pro…

cs.IR2025

Generative Retrieval for Book search

Yubao Tang, Ruqing Zhang, Jiafeng Guo +5

In book search, relevant book information should be returned in response to a query. Books contain complex, multi-faceted information such as metadata, outlines, and main text, whe…

cs.IR2024

Attack-in-the-Chain: Bootstrapping Large Language Models for Attacks Against Black-box Neural Ranking Models

Yu-An Liu, Ruqing Zhang, Jiafeng Guo +3

Neural ranking models (NRMs) have been shown to be highly effective in terms of retrieval performance. Unfortunately, they have also displayed a higher degree of sensitivity to att…

cs.IR2024

On the Robustness of Generative Information Retrieval Models

Yu-An Liu, Ruqing Zhang, Jiafeng Guo +3

Generative information retrieval methods retrieve documents by directly generating their identifiers. Much effort has been devoted to developing effective generative IR models. Les…

cs.CL2024

A Claim Decomposition Benchmark for Long-form Answer Verification

Zhihao Zhang, Yixing Fan, Ruqing Zhang +1

The advancement of LLMs has significantly boosted the performance of complex long-form question answering tasks. However, one prominent issue of LLMs is the generated "hallucinatio…

cs.CL2024

On the Capacity of Citation Generation by Large Language Models

Haosheng Qian, Yixing Fan, Ruqing Zhang +1

Retrieval-augmented generation (RAG) appears as a promising method to alleviate the "hallucination" problem in large language models (LLMs), since it can incorporate external trace…

cs.IR2024

Generative Retrieval Meets Multi-Graded Relevance

Yubao Tang, Ruqing Zhang, Jiafeng Guo +3

Generative retrieval represents a novel approach to information retrieval. It uses an encoder-decoder architecture to directly produce relevant document identifiers (docids) for qu…