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In healthcare, it is essential for any LLM-generated output to be reliable and accurate, particularly in cases involving decision-making and patient safety. However, the outputs are often unreliable in such critical areas due to the risk of…

Recent progress in natural language processing (NLP) owes much to remarkable advances in large language models (LLMs). Nevertheless, LLMs frequently "hallucinate," resulting in non-factual outputs. Our carefully-designed human evaluation…

计算与语言 · 计算机科学 2024-03-22 Jian Guan , Jesse Dodge , David Wadden , Minlie Huang , Hao Peng

Large language models (LLMs) are known to "hallucinate" by generating false or misleading outputs. Hallucinations pose various harms, from erosion of trust to widespread misinformation. Existing hallucination evaluation, however, focuses…

机器学习 · 计算机科学 2026-02-03 Prakhar Ganesh , Reza Shokri , Golnoosh Farnadi

Large Language Models (LLMs) have demonstrated remarkable capabilities, revolutionizing the integration of AI in daily life applications. However, they are prone to hallucinations, generating claims that contradict established facts,…

计算与语言 · 计算机科学 2024-06-14 A B M Ashikur Rahman , Saeed Anwar , Muhammad Usman , Ajmal Mian

How much do large language models actually hallucinate when answering questions grounded in provided documents? Despite the critical importance of this question for enterprise AI deployments, reliable measurement has been hampered by…

计算与语言 · 计算机科学 2026-03-10 JV Roig

Large language models (LLMs) have demonstrated impressive capabilities across a variety of tasks, but their increasing autonomy in real-world applications raises concerns about their trustworthiness. While hallucinations-unintentional…

机器学习 · 计算机科学 2025-09-04 Haoran Huan , Mihir Prabhudesai , Mengning Wu , Shantanu Jaiswal , Deepak Pathak

AI applications driven by multimodal large language models (MLLMs) are prone to hallucinations and pose considerable risks to human users. Crucially, such hallucinations are not equally problematic: some hallucination contents could be…

人工智能 · 计算机科学 2026-04-09 Jianhong Pang , Ruoxi Cheng , Ziyi Ye , Xingjun Ma , Zuxuan Wu , Xuanjing Huang , Yu-Gang Jiang

The contemporary LLMs are prone to producing hallucinations, stemming mainly from the knowledge gaps within the models. To address this critical limitation, researchers employ diverse strategies to augment the LLMs by incorporating external…

计算与语言 · 计算机科学 2024-03-19 Garima Agrawal , Tharindu Kumarage , Zeyad Alghamdi , Huan Liu

Recent work has demonstrated state-of-the-art results in large language model (LLM) hallucination detection and mitigation through consistency-based approaches which involve aggregating multiple responses sampled from a single LLM for a…

机器学习 · 计算机科学 2025-10-24 Demian Till , John Smeaton , Peter Haubrick , Gouse Saheb , Florian Graef , David Berman

LLMs have demonstrated unprecedented capabilities in natural language processing, yet their practical deployment remains hindered by persistent factuality and faithfulness hallucinations. While existing methods address these hallucination…

计算与语言 · 计算机科学 2025-11-25 Pengbo Wang , Chaozhuo Li , Chenxu Wang , Liwen Zheng , Litian Zhang , Xi Zhang

Creating human-like large language model (LLM) agents is crucial for faithful social simulation. Having LLMs role-play based on demographic information sometimes improves human likeness but often does not. This study assessed whether LLM…

Humans act via a nuanced process that depends both on rational deliberation and also on identity and contextual factors. In this work, we study how large language models (LLMs) can simulate human action in the context of social dilemma…

计算与语言 · 计算机科学 2026-02-03 Suhong Moon , Minwoo Kang , Joseph Suh , Mustafa Safdari , John Canny

Recently, multimodal large language models have made significant advancements in video understanding tasks. However, their ability to understand unprocessed long videos is very limited, primarily due to the difficulty in supporting the…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Yiwei Sun , Zhihang Liu , Chuanbin Liu , Bowei Pu , Zhihan Zhang , Hongtao Xie

Large language models (LLMs) have significantly advanced natural language processing tasks, yet they are susceptible to generating inaccurate or unreliable responses, a phenomenon known as hallucination. In critical domains such as health…

计算与语言 · 计算机科学 2024-09-20 Sumera Anjum , Hanzhi Zhang , Wenjun Zhou , Eun Jin Paek , Xiaopeng Zhao , Yunhe Feng

Large Language Models (LLMs) are increasingly explored for legal argument generation, yet they pose significant risks of manipulation through hallucination and ungrounded persuasion, and often fail to utilize provided factual bases…

人工智能 · 计算机科学 2025-10-27 Li Zhang , Kevin D. Ashley

This project develops a self correcting framework for large language models (LLMs) that detects and mitigates hallucinations during multi-step reasoning. Rather than relying solely on final answer correctness, our approach leverages fine…

人工智能 · 计算机科学 2025-11-21 Chelsea Zou , Yiheng Yao , Basant Khalil

Multimodal Large Language Models (MLLMs) have recently demonstrated impressive capabilities in multimodal understanding, reasoning, and interaction. However, existing MLLMs prevalently suffer from serious hallucination problems, generating…

计算与语言 · 计算机科学 2024-03-11 Tianyu Yu , Yuan Yao , Haoye Zhang , Taiwen He , Yifeng Han , Ganqu Cui , Jinyi Hu , Zhiyuan Liu , Hai-Tao Zheng , Maosong Sun , Tat-Seng Chua

Large language models (LLMs) demonstrate strong capabilities in natural language processing but remain prone to hallucinations, generating factually incorrect or fabricated content. This issue undermines their reliability, particularly in…

计算与语言 · 计算机科学 2025-02-19 Cheng Peng Huang , Hao-Yuan Chen

Large Language Models (LLMs) are now widely used in astrophysics, but do they actually make our lives easier, or do they merely invent new physics with enough confidence to hide a minus sign? In a specialized field where checking fluent…

天体物理仪器与方法 · 物理学 2026-04-01 Chun Huang

Despite tremendous advancements in large language models (LLMs) over recent years, a notably urgent challenge for their practical deployment is the phenomenon of hallucination, where the model fabricates facts and produces non-factual…

计算与语言 · 计算机科学 2024-04-09 Derui Zhu , Dingfan Chen , Qing Li , Zongxiong Chen , Lei Ma , Jens Grossklags , Mario Fritz