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With the recent remarkable advancement of large language models (LLMs), there has been a growing interest in utilizing them in the domains with highly sensitive data that lies outside their training data. For this purpose,…

Cryptography and Security · Computer Science 2025-11-13 Tatsuki Koga , Ruihan Wu , Zhiyuan Zhang , Kamalika Chaudhuri

Retrieval-augmented generation (RAG) is a powerful technique to facilitate language model with proprietary and private data, where data privacy is a pivotal concern. Whereas extensive research has demonstrated the privacy risks of large…

Cryptography and Security · Computer Science 2024-03-03 Shenglai Zeng , Jiankun Zhang , Pengfei He , Yue Xing , Yiding Liu , Han Xu , Jie Ren , Shuaiqiang Wang , Dawei Yin , Yi Chang , Jiliang Tang

Retrieval-Augmented Generation (RAG) has emerged as the dominant technique to provide \emph{Large Language Models} (LLM) with fresh and relevant context, mitigating the risk of hallucinations and improving the overall quality of responses…

Machine Learning · Computer Science 2025-01-23 Nicolas Grislain

Retrieval-augmented generation (RAG) is a widely used framework for reducing hallucinations in large language models (LLMs) on domain-specific tasks by retrieving relevant documents from a database to support accurate responses. However,…

Cryptography and Security · Computer Science 2026-02-17 Tingting Tang , James Flemings , Yongqin Wang , Murali Annavaram

While the flexible capabilities of large language models (LLMs) allow them to answer a range of queries based on existing learned knowledge, information retrieval to augment generation is an important tool to allow LLMs to answer questions…

Information Retrieval · Computer Science 2023-11-23 Guy Zyskind , Tobin South , Alex Pentland

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by grounding them in external knowledge. However, its application in sensitive domains is limited by privacy risks. Existing private RAG methods typically rely on…

Cryptography and Security · Computer Science 2026-05-13 Junki Mori , Kazuya Kakizaki , Taiki Miyagawa , Jun Sakuma

The continued promise of Large Language Models (LLMs), particularly in their natural language understanding and generation capabilities, has driven a rapidly increasing interest in identifying and developing LLM use cases. In an effort to…

Cryptography and Security · Computer Science 2026-01-08 Andreea-Elena Bodea , Stephen Meisenbacher , Alexandra Klymenko , Florian Matthes

Retrieval-Augmented Generation (RAG) is a promising technique for applying LLMs to proprietary domains. However, retrieved documents may contain sensitive knowledge, posing risks of privacy leakage in generative results. Thus, effectively…

Computation and Language · Computer Science 2025-04-15 Yujing Wang , Hainan Zhang , Liang Pang , Yongxin Tong , Binghui Guo , Hongwei Zheng , Zhiming Zheng

The widespread adoption of Retrieval-Augmented Generation (RAG) systems in real-world applications has heightened concerns about the confidentiality and integrity of their proprietary knowledge bases. These knowledge bases, which play a…

Cryptography and Security · Computer Science 2025-03-21 Pengcheng Zhou , Yinglun Feng , Zhongliang Yang

Retrieval-Augmented Generation (RAG) is an emerging approach in natural language processing that combines large language models (LLMs) with external document retrieval to produce more accurate and grounded responses. While RAG has shown…

Cryptography and Security · Computer Science 2025-09-25 Atousa Arzanipour , Rouzbeh Behnia , Reza Ebrahimi , Kaushik Dutta

Retrieval-Augmented Generation (RAG) is a powerful technique for enhancing Large Language Models (LLMs) with external, up-to-date knowledge. Graph RAG has emerged as an advanced paradigm that leverages graph-based knowledge structures to…

Cryptography and Security · Computer Science 2025-08-26 Jiale Liu , Jiahao Zhang , Suhang Wang

Retrieval-augmented generation (RAG) improves the service quality of large language models by retrieving relevant documents from credible literature and integrating them into the context of the user query. Recently, the rise of the cloud…

Information Retrieval · Computer Science 2024-12-18 Yihang Cheng , Lan Zhang , Junyang Wang , Mu Yuan , Yunhao Yao

Retrieval-Augmented Generation (RAG) has become a foundational component of modern AI systems, yet it introduces significant privacy risks by exposing user queries to service providers. To address this, we introduce PIR-RAG, a practical…

Information Retrieval · Computer Science 2025-09-29 Baiqiang Wang , Qian Lou , Mengxin Zheng , Dongfang Zhao

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

Retrieval-Augmented Generation (RAG) has recently demonstrated the performance of Large Language Models (LLMs) in the knowledge-intensive tasks such as Question-Answering (QA). RAG expands the query context by incorporating external…

Machine Learning · Computer Science 2024-06-18 Zijian Hei , Weiling Liu , Wenjie Ou , Juyi Qiao , Junming Jiao , Guowen Song , Ting Tian , Yi Lin

Retrieval Augmented Generation (RAG) has become one of the most popular methods for bringing knowledge-intensive context to large language models (LLM) because of its ability to bring local context at inference time without the cost or data…

Information Retrieval · Computer Science 2025-05-02 Michael J. Ryan , Danmei Xu , Chris Nivera , Daniel Campos

Multimodal Retrieval-Augmented Generation (MRAG) systems enhance LMMs by integrating external multimodal databases, but introduce unexplored privacy vulnerabilities. While text-based RAG privacy risks have been studied, multimodal data…

Cryptography and Security · Computer Science 2025-05-21 Jiankun Zhang , Shenglai Zeng , Jie Ren , Tianqi Zheng , Hui Liu , Xianfeng Tang , Hui Liu , Yi Chang

Retrieval-Augmented Generation (RAG) enables large language models to use external knowledge, but outsourcing the RAG service raises privacy concerns for both data owners and users. Privacy-preserving RAG systems address these concerns by…

Cryptography and Security · Computer Science 2026-05-29 Yulong Ming , Mingyue Wang , Jijia Yang , Jie Xu , Zihan Wu , Cong Wang , Xiaohua Jia

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by integrating external knowledge sources, enabling more accurate and contextually relevant responses tailored to user queries. These systems, however, remain…

Computation and Language · Computer Science 2025-05-26 Huichi Zhou , Kin-Hei Lee , Zhonghao Zhan , Yue Chen , Zhenhao Li , Zhaoyang Wang , Hamed Haddadi , Emine Yilmaz

Retrieval-Augmented Generation (RAG) has attracted significant attention due to its ability to combine the generative capabilities of Large Language Models (LLMs) with knowledge obtained through efficient retrieval mechanisms over…

Cryptography and Security · Computer Science 2026-01-19 Aiman Al Masoud , Marco Arazzi , Antonino Nocera
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