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Retrieval-Augmented Generation (RAG) systems have gained widespread adoption by application builders because they leverage sources of truth to enable Large Language Models (LLMs) to generate more factually sound responses. However,…

计算与语言 · 计算机科学 2025-05-09 Alex Shan , John Bauer , Christopher D. Manning

Large language models (LLMs) exhibit extensive medical knowledge but are prone to hallucinations and inaccurate citations, which pose a challenge to their clinical adoption and regulatory compliance. Current methods, such as Retrieval…

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

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

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.…

Current large language models (LLMs) often suffer from hallucination issues, i,e, generating content that appears factual but is actually unreliable. A typical hallucination detection pipeline involves response decomposition (i.e., claim…

计算与语言 · 计算机科学 2025-10-23 Fan Xu , Huixuan Zhang , Zhenliang Zhang , Jiahao Wang , Xiaojun Wan

Addressing the issue of hallucinations in large language models (LLMs) is a critical challenge. As the cognitive mechanisms of hallucination have been related to memory, here we explore hallucination for LLM that is enabled with explicit…

计算与语言 · 计算机科学 2024-07-25 Georgios Kollias , Payel Das , Subhajit Chaudhury

Large language models (LLMs) can be prone to hallucinations - generating unreliable outputs that are unfaithful to their inputs, external facts or internally inconsistent. In this work, we address several challenges for post-hoc…

计算与语言 · 计算机科学 2024-08-12 Simon Valentin , Jinmiao Fu , Gianluca Detommaso , Shaoyuan Xu , Giovanni Zappella , Bryan Wang

While Large Language Models (LLMs) have demonstrated remarkable capabilities, their reliability is significantly compromised by hallucinations. Existing intrinsic self-correction methods attempt to address this, but often fail due to…

计算与语言 · 计算机科学 2026-05-29 Gyumin Kim , Juhwan Park , Jaeha Kim , Seunggyun Han , Kyungrak Son , Ikbeom Jang

Despite their impressive ability to generate high-quality and fluent text, generative large language models (LLMs) also produce hallucinations: statements that are misaligned with established world knowledge or provided input context.…

计算与语言 · 计算机科学 2025-01-15 Abhilasha Ravichander , Shrusti Ghela , David Wadden , Yejin Choi

Vision Language Models (VLMs) are increasingly used in autonomous driving to help understand traffic scenes, but they sometimes produce hallucinations, which are false details not grounded in the visual input. Detecting and mitigating…

机器人学 · 计算机科学 2025-11-11 Keke Long , Jiacheng Guo , Tianyun Zhang , Hongkai Yu , Xiaopeng Li

Large Language Models (LLMs) augmented with retrieval mechanisms have demonstrated significant potential in fact-checking tasks by integrating external knowledge. However, their reliability decreases when confronted with conflicting…

计算与语言 · 计算机科学 2025-05-26 Ziyu Ge , Yuhao Wu , Daniel Wai Kit Chin , Roy Ka-Wei Lee , Rui Cao

Large Language Models (LLMs) show promise as a writing aid for professionals performing legal analyses. However, LLMs can often hallucinate in this setting, in ways difficult to recognize by non-professionals and existing text evaluation…

计算与语言 · 计算机科学 2024-09-25 Abe Bohan Hou , William Jurayj , Nils Holzenberger , Andrew Blair-Stanek , Benjamin Van Durme

Large Language Models (LLMs) are optimized to produce distributionally plausible continuations rather than to explicitly verify whether generated propositions are entailed by source documents. This inductive bias enables generalization, but…

计算与语言 · 计算机科学 2026-05-25 Paul Landes , Pranav Herur , Adam Cross , Jimeng Sun

While large language models (LLMs) have shown remarkable capabilities to generate coherent text, they suffer from the issue of hallucinations -- factually inaccurate statements. Among numerous approaches to tackle hallucinations, especially…

计算与语言 · 计算机科学 2025-06-25 Juraj Vladika , Ihsan Soydemir , Florian Matthes

Large Language Models (LLMs) are widely used to generate plausible text on online platforms, without revealing the generation process. As users increasingly encounter such black-box outputs, detecting hallucinations has become a critical…

计算与语言 · 计算机科学 2026-04-08 Joosung Lee , Cheonbok Park , Hwiyeol Jo , Jeonghoon Kim , Joonsuk Park , Kang Min Yoo

Large language model (LLM) hallucinations, meaning fluent but factually incorrect generations, fall into two types: faithfulness violations, where the model misuses provided context, and factuality violations, where answers reflect errors…

计算与语言 · 计算机科学 2026-05-28 Ivo Brink , Alexander Boer , Dennis Ulmer

Hallucination in large language models (LLMs) continues to be a significant issue, particularly in tasks like question answering, where models often generate plausible yet incorrect or irrelevant information. Although various methods have…

计算与语言 · 计算机科学 2026-04-09 Ziqin Luo , Yihao Quan , Xiaofeng Zhang , Xiaosong Yuan , Chen Shen

Large Language and Vision-Language Models (LLMs/VLMs) are increasingly used in safety-critical applications, yet their opaque decision-making complicates risk assessment and reliability. Uncertainty quantification (UQ) helps assess…

Large Language Models (LLMs) have demonstrated remarkable fluency across a range of natural language tasks, yet remain vulnerable to hallucinations - factual inaccuracies that undermine trust in real world deployment. We present…

计算与语言 · 计算机科学 2025-07-16 Kaushik Dwivedi , Padmanabh Patanjali Mishra