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A common and fundamental limitation of Generative AI (GenAI) is its propensity to hallucinate. While large language models (LLM) have taken the world by storm, without eliminating or at least reducing hallucinations, real-world GenAI…

机器学习 · 计算机科学 2024-12-03 Patrice Béchard , Orlando Marquez Ayala

Retrieval-Augmented Generation (RAG) effectively reduces hallucinations in Large Language Models (LLMs) but can still produce inconsistent or unsupported content. Although LLM-as-a-Judge is widely used for RAG hallucination detection due to…

计算与语言 · 计算机科学 2025-02-27 Zhouyu Jiang , Mengshu Sun , Zhiqiang Zhang , Lei Liang

This article surveys Evaluation models to automatically detect hallucinations in Retrieval-Augmented Generation (RAG), and presents a comprehensive benchmark of their performance across six RAG applications. Methods included in our study…

机器学习 · 计算机科学 2025-04-08 Ashish Sardana

Hallucinations present a significant challenge for large language models (LLMs). The utilization of parametric knowledge in generating factual content is constrained by the limited knowledge of LLMs, potentially resulting in internal…

计算与语言 · 计算机科学 2025-10-07 Hanxing Ding , Liang Pang , Zihao Wei , Huawei Shen , Xueqi Cheng

Large language models (LLMs) like ChatGPT demonstrate the remarkable progress of artificial intelligence. However, their tendency to hallucinate -- generate plausible but false information -- poses a significant challenge. This issue is…

计算与语言 · 计算机科学 2024-06-13 Philip Feldman , James R. Foulds , Shimei Pan

Retrieval-augmented generation (RAG) has emerged as a promising paradigm for improving factual accuracy in large language models (LLMs). We introduce a benchmark designed to evaluate RAG pipelines as a whole, evaluating a pipeline's ability…

Large Language Models (LLMs) excel in language comprehension and generation but are prone to hallucinations, producing factually incorrect or unsupported outputs. Retrieval Augmented Generation (RAG) systems address this issue by grounding…

信息检索 · 计算机科学 2025-04-09 Chandana Sree Mala , Gizem Gezici , Fosca Giannotti

Detecting hallucinations in Retrieval-Augmented Generation remains a challenge. Prior approaches attribute hallucinations to a binary conflict between internal knowledge stored in FFNs and the retrieved context. However, this perspective is…

计算与语言 · 计算机科学 2026-04-20 Pengqian Lu , Jie Lu , Anjin Liu , Guangquan Zhang

Hallucination remains one of the key obstacles to the reliable deployment of large language models (LLMs), particularly in real-world applications. Among various mitigation strategies, Retrieval-Augmented Generation (RAG) and reasoning…

计算与语言 · 计算机科学 2025-10-29 Yihan Li , Xiyuan Fu , Ghanshyam Verma , Paul Buitelaar , Mingming Liu

Retrieval-Augmented Generation (RAG) has emerged as a powerful framework to improve factuality in large language models (LLMs) by grounding their outputs in retrieved documents. However, ensuring perfect retrieval of relevant information…

计算与语言 · 计算机科学 2025-12-04 Zhan Peng Lee , Andre Lin , Calvin Tan

Large Language Models (LLMs) showcase impressive capabilities but encounter challenges like hallucination, outdated knowledge, and non-transparent, untraceable reasoning processes. Retrieval-Augmented Generation (RAG) has emerged as a…

计算与语言 · 计算机科学 2024-03-28 Yunfan Gao , Yun Xiong , Xinyu Gao , Kangxiang Jia , Jinliu Pan , Yuxi Bi , Yi Dai , Jiawei Sun , Meng Wang , Haofen Wang

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…

Retrieval-Augmented Generation (RAG) systems offer a powerful approach to enhancing large language model (LLM) outputs by incorporating fact-checked, contextually relevant information. However, fairness and reliability concerns persist, as…

人机交互 · 计算机科学 2025-04-24 Xuyang Zhu , Sejoon Chang , Andrew Kuik

Retrieval-Augmented Generation (RAG) systems remain susceptible to hallucinations despite grounding in retrieved evidence. While current detection methods leverage embedding similarity and natural language inference (NLI), their reliability…

机器学习 · 计算机科学 2025-12-22 Debu Sinha

Dynamic Retrieval-Augmented Generation adaptively determines when to retrieve during generation to mitigate hallucinations in large language models (LLMs). However, existing methods rely on model-internal signals (e.g., logits, entropy),…

计算与语言 · 计算机科学 2026-05-19 Dehai Min , Kailin Zhang , Tongtong Wu , Lu Cheng

Retrieval-augmented generation (RAG) is increasingly recognized as an effective approach to mitigating the hallucination of large language models (LLMs) through the integration of external knowledge. While numerous efforts, most studies…

计算与语言 · 计算机科学 2025-10-10 Shuo Yu , Mingyue Cheng , Qi Liu , Daoyu Wang , Jiqian Yang , Jie Ouyang , Yucong Luo , Chenyi Lei , Enhong Chen

Large Language Models are prompting us to view more NLP tasks from a generative perspective. At the same time, they offer a new way of accessing information, mainly through the RAG framework. While there have been notable improvements for…

计算与语言 · 计算机科学 2025-03-21 Alex-Razvan Ispas , Charles-Elie Simon , Fabien Caspani , Vincent Guigue

Retrieval-augmented generation (RAG) is a framework enabling large language models (LLMs) to enhance their accuracy and reduce hallucinations by integrating external knowledge bases. In this paper, we introduce a hybrid RAG system enhanced…

计算与语言 · 计算机科学 2024-09-04 Ye Yuan , Chengwu Liu , Jingyang Yuan , Gongbo Sun , Siqi Li , Ming Zhang

Retrieval-augmented generation (RAG) is a key technique for leveraging external knowledge and reducing hallucinations in large language models (LLMs). However, RAG still struggles to fully prevent hallucinated responses. To address this, it…

计算与语言 · 计算机科学 2025-02-14 Xuzhao Geng , Haozhao Wang , Jun Wang , Wei Liu , Ruixuan Li

Detecting content that contradicts or is unsupported by a given source text is a critical challenge for the safe deployment of generative language models. We introduce HALT-RAG, a post-hoc verification system designed to identify…

计算与语言 · 计算机科学 2025-09-10 Saumya Goswami , Siddharth Kurra