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Personalized retrieval-augmented generation (RAG) aims to produce user-tailored responses by incorporating retrieved user profiles alongside the input query. Existing methods primarily focus on improving retrieval and rely on large language…

信息检索 · 计算机科学 2025-08-12 Kepu Zhang , Teng Shi , Weijie Yu , Jun Xu

Large Language Models (LLMs) face limitations in AI legal and policy applications due to outdated knowledge, hallucinations, and poor reasoning in complex contexts. Retrieval-Augmented Generation (RAG) systems address these issues by…

信息检索 · 计算机科学 2025-02-26 Rishi Kalra , Zekun Wu , Ayesha Gulley , Airlie Hilliard , Xin Guan , Adriano Koshiyama , Philip Treleaven

Retrieval-augmented generation (RAG) appears as a promising method to alleviate the "hallucination" problem in large language models (LLMs), since it can incorporate external traceable resources for response generation. The essence of RAG…

计算与语言 · 计算机科学 2024-10-16 Haosheng Qian , Yixing Fan , Ruqing Zhang , Jiafeng Guo

Medical question-answering (QA) systems can benefit from advances in large language models (LLMs), but directly applying LLMs to the clinical domain poses challenges such as maintaining factual accuracy and avoiding hallucinations. In this…

计算与语言 · 计算机科学 2025-12-08 Tasnimul Hassan , Md Faisal Karim , Haziq Jeelani , Elham Behnam , Robert Green , Fayeq Jeelani Syed

This article presents DDP-SA, a scalable privacy-preserving federated learning framework that jointly leverages client-side local differential privacy (LDP) and full-threshold additive secret sharing (ASS) for secure aggregation. Unlike…

密码学与安全 · 计算机科学 2026-04-09 Wenjing Wei , Farid Nait-Abdesselam , Alla Jammine

Existing Retrieval-Augmented Generation (RAG) systems face challenges in enterprise settings due to limited retrieval scope and data security risks. When relevant internal documents are unavailable, the system struggles to generate accurate…

计算与语言 · 计算机科学 2025-07-18 Grace Byun , Shinsun Lee , Nayoung Choi , Jinho D. Choi

Large language models (LLMs) frequently generate confident yet factually incorrect content when used for language generation (a phenomenon often known as hallucination). Retrieval augmented generation (RAG) tries to reduce factual errors by…

信息检索 · 计算机科学 2026-04-01 Dobrik Georgiev , Kheeran Naidu , Alberto Cattaneo , Federico Monti , Carlo Luschi , Daniel Justus

Retrieval-Augmented Generation (RAG) lifts the factuality of Large Language Models (LLMs) by injecting external knowledge, yet it falls short on problems that demand multi-step inference; conversely, purely reasoning-oriented approaches…

Large Language Models (LLMs)-based question answering (QA) systems play a critical role in modern AI, demonstrating strong performance across various tasks. However, LLM-generated responses often suffer from hallucinations, unfaithful…

计算与语言 · 计算机科学 2026-01-29 Yuqing Zhao , Ziyao Liu , Yongsen Zheng , Kwok-Yan Lam

We present a comprehensive framework for enhancing Retrieval-Augmented Generation (RAG) systems through dynamic retrieval strategies and reinforcement fine-tuning. This approach significantly improves large language models on…

机器学习 · 计算机科学 2025-05-21 Sakhinana Sagar Srinivas , Akash Das , Shivam Gupta , Venkataramana Runkana

Large Language Models (LLMs) demonstrate human-level capabilities in dialogue, reasoning, and knowledge retention. However, even the most advanced LLMs face challenges such as hallucinations and real-time updating of their knowledge.…

Resource efficiency is a critical barrier to deploying large language models (LLMs) in edge and privacy-sensitive applications. This study evaluates the efficacy of two augmentation strategies--Retrieval-Augmented Generation (RAG) and…

计算与语言 · 计算机科学 2025-06-30 Andrejs Sorstkins

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by retrieving relevant memories from an external database. However, existing RAG methods typically organize all memories in a whole database, potentially limiting…

计算与语言 · 计算机科学 2024-05-28 Zheng Wang , Shu Xian Teo , Jieer Ouyang , Yongjun Xu , Wei Shi

Retrieval-Augmented Generation (RAG) offers a cost-effective approach to injecting real-time knowledge into large language models (LLMs). Nevertheless, constructing and validating high-quality knowledge repositories require considerable…

计算与语言 · 计算机科学 2024-05-28 Xun Liang , Simin Niu , Zhiyu li , Sensen Zhang , Shichao Song , Hanyu Wang , Jiawei Yang , Feiyu Xiong , Bo Tang , Chenyang Xi

Aligning Large Language Models (LLMs) with human values and away from undesirable behaviors (such as hallucination) has become increasingly important. Recently, steering LLMs towards a desired behavior via activation editing has emerged as…

计算与语言 · 计算机科学 2025-03-21 Anmol Goel , Yaxi Hu , Iryna Gurevych , Amartya Sanyal

Retrieval-Augmented Generation (RAG) has been introduced to mitigate hallucinations in Multimodal Large Language Models (MLLMs) by incorporating external knowledge into the generation process, and it has become a widely adopted approach for…

人工智能 · 计算机科学 2026-03-17 Zhuohang Jiang , Pangjing Wu , Xu Yuan , Wenqi Fan , Qing Li

Retrieval-Augmented Generation (RAG) compensates for the static knowledge limitations of Large Language Models (LLMs) by integrating external knowledge, producing responses with enhanced factual correctness and query-specific…

计算与语言 · 计算机科学 2025-05-21 Ruobing Yao , Yifei Zhang , Shuang Song , Neng Gao , Chenyang Tu

Large language models (LLMs) struggle with the factual error during inference due to the lack of sufficient training data and the most updated knowledge, leading to the hallucination problem. Retrieval-Augmented Generation (RAG) has gained…

信息检索 · 计算机科学 2026-01-22 Zulun Zhu , Tiancheng Huang , Kai Wang , Junda Ye , Xinghe Chen , Siqiang Luo

While Retrieval-Augmented Generation (RAG) effectively reduces hallucinations by integrating external knowledge bases, it introduces vulnerabilities to membership inference attacks (MIAs), particularly in systems handling sensitive data.…

密码学与安全 · 计算机科学 2025-09-09 Xinyu Gao , Xiangtao Meng , Yingkai Dong , Zheng Li , Shanqing Guo

Retrieval-Augmented Generation (RAG) methods augment the input of Large Language Models (LLMs) with relevant retrieved passages, reducing factual errors in knowledge-intensive tasks. However, contemporary RAG approaches suffer from…

计算与语言 · 计算机科学 2024-05-24 Dian Jiao , Li Cai , Jingsheng Huang , Wenqiao Zhang , Siliang Tang , Yueting Zhuang