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Retrieval augmented generation (RAG) is frequently used to mitigate hallucinations and provide up-to-date knowledge for large language models (LLMs). However, given that document retrieval is an imprecise task and sometimes results in…

Computation and Language · Computer Science 2025-02-10 Kevin Wu , Eric Wu , James Zou

Recent advances in AI agents capable of solving complex, everyday tasks, from scheduling to customer service, have enabled deployment in real-world settings, but their possibilities for unsafe behavior demands rigorous evaluation. While…

Artificial Intelligence · Computer Science 2026-02-18 Sanidhya Vijayvargiya , Aditya Bharat Soni , Xuhui Zhou , Zora Zhiruo Wang , Nouha Dziri , Graham Neubig , Maarten Sap

Large Language Models (LLMs) are increasingly deployed for code generation in high-stakes software development, yet their limited transparency in security reasoning and brittleness to evolving vulnerability patterns raise critical…

Software Engineering · Computer Science 2026-03-03 Manisha Mukherjee , Vincent J. Hellendoorn

Large Language Models (LLMs) have shown remarkable performance on general Question Answering (QA), yet they often struggle in domain-specific scenarios where accurate and up-to-date information is required. Retrieval-Augmented Generation…

Computation and Language · Computer Science 2026-02-13 Haoyue Bai , Haoyu Wang , Shengyu Chen , Zhengzhang Chen , Lu-An Tang , Wei Cheng , Haifeng Chen , Yanjie Fu

Retrieval augmented generation (RAG) systems provide a method for factually grounding the responses of a Large Language Model (LLM) by providing retrieved evidence, or context, as support. Guided by this context, RAG systems can reduce…

Information Retrieval · Computer Science 2025-09-05 Shakiba Amirshahi , Amin Bigdeli , Charles L. A. Clarke , Amira Ghenai

Relevance modeling is a critical component for enhancing user experience in search engines, with the primary objective of identifying items that align with users' queries. Traditional models only rely on the semantic congruence between…

Information Retrieval · Computer Science 2024-12-09 Zeyuan Chen , Haiyan Wu , Kaixin Wu , Wei Chen , Mingjie Zhong , Jia Xu , Zhongyi Liu , Wei Zhang

Retrieval Augmented Generation (RAG) has emerged as the de facto industry standard for user-facing NLP applications, offering the ability to integrate data without re-training or fine-tuning Large Language Models (LLMs). This capability…

Cryptography and Security · Computer Science 2026-01-13 Lukas Ammann , Sara Ott , Christoph R. Landolt , Marco P. Lehmann

Retrieval-Augmented Language Models (RALMs) face significant challenges in reducing factual errors, particularly in document relevance evaluation and knowledge integration. We introduce a framework for structured relevance assessment that…

Artificial Intelligence · Computer Science 2025-07-30 Aryan Raj , Astitva Veer Garg , Anitha D

Retrieval-Augmented Generation (RAG) has emerged as the dominant architectural pattern to operationalize Large Language Model (LLM) usage in Cyber Threat Intelligence (CTI) systems. However, this design is susceptible to poisoning attacks,…

Cryptography and Security · Computer Science 2025-12-17 Austin Jia , Avaneesh Ramesh , Zain Shamsi , Daniel Zhang , Alex Liu

Large language models (LLMs) are very costly and inefficient to update with new information. To address this limitation, retrieval-augmented generation (RAG) has been proposed as a solution that dynamically incorporates external knowledge…

Computation and Language · Computer Science 2025-07-10 Sezen Perçin , Xin Su , Qutub Sha Syed , Phillip Howard , Aleksei Kuvshinov , Leo Schwinn , Kay-Ulrich Scholl

The growing ubiquity of Retrieval-Augmented Generation (RAG) systems in several real-world services triggers severe concerns about their security. A RAG system improves the generative capabilities of a Large Language Models (LLM) by a…

Artificial Intelligence · Computer Science 2024-12-31 Christian Di Maio , Cristian Cosci , Marco Maggini , Valentina Poggioni , Stefano Melacci

Incident response (IR) requires fast, coordinated, and well-informed decision-making to contain and mitigate cyber threats. While large language models (LLMs) have shown promise as autonomous agents in simulated IR settings, their reasoning…

Computation and Language · Computer Science 2025-10-07 Zefang Liu , Arman Anwar

As language models (LMs) are used to build autonomous agents in real environments, ensuring their adversarial robustness becomes a critical challenge. Unlike chatbots, agents are compound systems with multiple components taking actions,…

Machine Learning · Computer Science 2025-02-06 Chen Henry Wu , Rishi Shah , Jing Yu Koh , Ruslan Salakhutdinov , Daniel Fried , Aditi Raghunathan

Search agents connect LLMs to the Internet, enabling them to access broader and more up-to-date information. However, this also introduces a new threat surface: unreliable search results can mislead agents into producing unsafe outputs.…

Artificial Intelligence · Computer Science 2026-05-29 Jianshuo Dong , Sheng Guo , Hao Wang , Xun Chen , Zhuotao Liu , Tianwei Zhang , Ke Xu , Minlie Huang , Han Qiu

Harmful text detection has become a crucial task in the development and deployment of large language models, especially as AI-generated content continues to expand across digital platforms. This study proposes a joint retrieval framework…

Computation and Language · Computer Science 2025-04-04 Zidong Yu , Shuo Wang , Nan Jiang , Weiqiang Huang , Xu Han , Junliang Du

Retrieval-Augmented Generation (RAG) systems have emerged as a promising solution to mitigate LLM hallucinations and enhance their performance in knowledge-intensive domains. However, these systems are vulnerable to adversarial poisoning…

Information Retrieval · Computer Science 2025-07-29 Jinyan Su , Jin Peng Zhou , Zhengxin Zhang , Preslav Nakov , Claire Cardie

The advent of Large Language Models (LLMs) has shown the potential to improve relevance and provide direct answers in web searches. However, challenges arise in validating the reliability of generated results and the credibility of…

Information Retrieval · Computer Science 2023-10-20 Xiang Shi , Jiawei Liu , Yinpeng Liu , Qikai Cheng , Wei Lu

Large Language Models (LLMs) are constrained by outdated information and a tendency to generate incorrect data, commonly referred to as "hallucinations." Retrieval-Augmented Generation (RAG) addresses these limitations by combining the…

Cryptography and Security · Computer Science 2024-06-07 Jiaqi Xue , Mengxin Zheng , Yebowen Hu , Fei Liu , Xun Chen , Qian Lou

Content moderation for large language models (LLMs) remains a significant challenge, requiring flexible and adaptable solutions that can quickly respond to emerging threats. This paper introduces Retrieval Augmented Rejection (RAR), a novel…

Information Retrieval · Computer Science 2025-05-21 Tommaso Mario Buonocore , Enea Parimbelli

Recent studies show that Generative Relevance Feedback (GRF), using text generated by Large Language Models (LLMs), can enhance the effectiveness of query expansion. However, LLMs can generate irrelevant information that harms retrieval…

Information Retrieval · Computer Science 2023-06-19 Iain Mackie , Ivan Sekulic , Shubham Chatterjee , Jeffrey Dalton , Fabio Crestani