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Hallucination detection is critical for deploying large language models (LLMs) in real-world applications. Existing hallucination detection methods achieve strong performance when the training and test data come from the same domain, but…

人工智能 · 计算机科学 2026-02-20 Yongxin Deng , Zhen Fang , Sharon Li , Ling Chen

Common evaluation paradigms for language models focus on scoring single responses through accuracy metrics or proper scoring rules, failing to capture the full richness of a model's belief state. Recent work illustrates that language models…

计算与语言 · 计算机科学 2025-10-07 Thomas F Burns

The hallucination of large multimodal models (LMMs), providing responses that appear correct but are actually incorrect, limits their reliability and applicability. This paper aims to study the hallucination problem of LMMs in video…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Hongcheng Gao , Jiashu Qu , Jingyi Tang , Baolong Bi , Yue Liu , Hongyu Chen , Li Liang , Li Su , Qingming Huang

The detection of sophisticated hallucinations in Large Language Models (LLMs) is hampered by a ``Detection Dilemma'': methods probing internal states (Internal State Probing) excel at identifying factual inconsistencies but fail on logical…

计算与语言 · 计算机科学 2026-01-09 Yusheng Song , Lirong Qiu , Xi Zhang , Zhihao Tang

This paper presents a modular approach to accelerate inference in large language models (LLMs) by adding early exit heads at intermediate transformer layers. Each head is trained in a self-supervised manner to mimic the main model's…

计算与语言 · 计算机科学 2026-02-13 Florian Valade

Despite their remarkable progress in multimodal understanding tasks, large vision language models (LVLMs) often suffer from "hallucinations", generating texts misaligned with the visual context. Existing methods aimed at reducing…

计算机视觉与模式识别 · 计算机科学 2025-10-17 Sreetama Sarkar , Yue Che , Alex Gavin , Peter A. Beerel , Souvik Kundu

Hallucination, the generation of factually incorrect content, is a growing challenge in Large Language Models (LLMs). Existing detection and mitigation methods are often isolated and insufficient for domain-specific needs, lacking a…

To address hallucination issues in large language models (LLMs), this paper proposes a method for mitigating prompt-induced hallucinations. Building on a knowledge distillation chain-style model, we introduce a code module to guide…

计算与语言 · 计算机科学 2026-01-07 Jinbo Hao , Kai Yang , Qingzhen Su , Yang Chen , Yifan Li , Chao Jiang

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

Large Language Models (LLMs) often generate hallucinations, producing outputs that are contextually inaccurate or factually incorrect. We introduce HICD, a novel method designed to induce hallucinations for contrastive decoding to mitigate…

计算与语言 · 计算机科学 2025-05-26 Xinyan Jiang , Hang Ye , Yongxin Zhu , Xiaoying Zheng , Zikang Chen , Jun Gong

Recent studies have examined attention dynamics in large vision-language models (LVLMs) to detect hallucinations. However, existing approaches remain limited in reliably distinguishing hallucinated from factually grounded outputs, as they…

计算机视觉与模式识别 · 计算机科学 2026-01-29 Xiaofeng Zhang , Yuanchao Zhu , Chaochen Gu , Xiaosong Yuan , Qiyan Zhao , Jiawei Cao , Feilong Tang , Sinan Fan , Yaomin Shen , Chen Shen , Hao Tang

Detecting hallucinations in large language models (LLMs) remains a fundamental challenge for their trustworthy deployment. Going beyond basic uncertainty-driven hallucination detection frameworks, we propose a simple yet powerful method…

人工智能 · 计算机科学 2025-10-10 Rui Wang , Zeming Wei , Guanzhang Yue , Meng Sun

Recent methodologies utilizing synthetic datasets have aimed to address inconsistent hallucinations in large language models (LLMs); however,these approaches are primarily tailored to specific tasks, limiting their generalizability.…

人工智能 · 计算机科学 2025-02-28 Xinxin You , Xien Liu , Qixin Sun , Huan Zhang , Kaiyin Zhou , Shaohui Liu , GuoPing Hu , ShiJin Wang , Si Liu , Ji Wu

Detecting hallucinations in large language model (LLM) outputs is pivotal, yet traditional fine-tuning for this classification task is impeded by the expensive and quickly outdated annotation process, especially across numerous vertical…

人工智能 · 计算机科学 2024-07-09 Dongxu Zhang , Varun Gangal , Barrett Martin Lattimer , Yi Yang

Hallucination poses a persistent challenge for multimodal large language models (MLLMs). However, existing benchmarks for evaluating hallucinations are generally static, which may overlook the potential risk of data contamination. To…

计算与语言 · 计算机科学 2025-07-08 Yahan Tu , Rui Hu , Jitao Sang

Large Language Models (LLMs) have shown their ability to collaborate effectively with humans in real-world scenarios. However, LLMs are apt to generate hallucinations, i.e., makeup incorrect text and unverified information, which can cause…

计算与语言 · 计算机科学 2023-10-25 Shiping Yang , Renliang Sun , Xiaojun Wan

As scaling up training data has significantly improved the general multimodal capabilities of Large Vision-Language Models (LVLMs), they still suffer from the hallucination issue, generating text that is inconsistent with the visual input.…

计算机视觉与模式识别 · 计算机科学 2025-08-07 Yifan Li , Kun Zhou , Wayne Xin Zhao , Lei Fang , Ji-Rong Wen

Reducing hallucinations in Large Language Models (LLMs) is essential for improving the accuracy of data extraction from large text corpora. Current methods, like prompt engineering and chain-of-thought prompting, focus on individual…

人工智能 · 计算机科学 2026-04-03 Daniel Xie , Maxwell J. Jacobson , Adil Wazeer , Haiyan Wang , Xinghang Zhang , Yexiang Xue

Large language models are increasingly being used in patient-facing medical question answering, where hallucinated outputs can vary widely in potential harm. However, existing hallucination standards and evaluation metrics focus primarily…

计算与语言 · 计算机科学 2026-03-02 Savan Doshi

Large language models (LLMs) have demonstrated remarkable performance across diverse tasks by encoding vast amounts of factual knowledge. However, they are still prone to hallucinations, generating incorrect or misleading information, often…

计算与语言 · 计算机科学 2025-11-13 Xiaomin Li , Zhou Yu , Ziji Zhang , Yingying Zhuang , Swair Shah , Narayanan Sadagopan , Anurag Beniwal