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Large language models (LLMs) possess extensive world knowledge, including geospatial knowledge, which has been successfully applied to various geospatial tasks such as mobility prediction and social indicator prediction. However, LLMs often…

计算与语言 · 计算机科学 2025-07-29 Shengyuan Wang , Jie Feng , Tianhui Liu , Dan Pei , Yong Li

Large language models demonstrate impressive results across diverse tasks but are still known to hallucinate, generating linguistically plausible but incorrect answers to questions. Uncertainty quantification has been proposed as a strategy…

计算与语言 · 计算机科学 2025-12-03 Edward Phillips , Sean Wu , Soheila Molaei , Danielle Belgrave , Anshul Thakur , David Clifton

Multimodal Large Language Models (MLLMs) have unlocked powerful cross-modal capabilities, but still significantly suffer from hallucinations. As such, accurate detection of hallucinations in MLLMs is imperative for ensuring their…

Existing large language models (LLMs) are known for generating "hallucinated" content, namely a fabricated text of plausibly looking, yet unfounded, facts. To identify when these hallucination scenarios occur, we examine the properties of…

计算与语言 · 计算机科学 2023-09-06 Mohamed Akrout

Large language models (LLMs) are increasingly being adopted as the cognitive core of embodied agents. However, inherited hallucinations, which stem from failures to ground user instructions in the observed physical environment, can lead to…

Large Language Models (LLMs) and Large Reasoning Models (LRMs) offer transformative potential for high-stakes domains like finance and law, but their tendency to hallucinate, generating factually incorrect or unsupported content, poses a…

人工智能 · 计算机科学 2026-01-16 Ahmad Pesaranghader , Erin Li

Although large Language Models (LLMs) have achieved remarkable success, their practical application is often hindered by the generation of non-factual content, which is called "hallucination". Ensuring the reliability of LLMs' outputs is a…

计算与语言 · 计算机科学 2025-09-16 Yue Ding , Xiaofang Zhu , Tianze Xia , Junfei Wu , Xinlong Chen , Qiang Liu , Liang Wang

Large Vision Language Models exhibit remarkable capabilities but struggle with hallucinations inconsistencies between images and their descriptions. Previous hallucination evaluation studies on LVLMs have identified hallucinations in terms…

人工智能 · 计算机科学 2024-11-11 Chaoya Jiang , Hongrui Jia , Wei Ye , Mengfan Dong , Haiyang Xu , Ming Yan , Ji Zhang , Shikun Zhang

Despite the outstanding performance in multimodal tasks, Large Vision-Language Models (LVLMs) have been plagued by the issue of hallucination, i.e., generating content that is inconsistent with the corresponding visual inputs. While…

计算机视觉与模式识别 · 计算机科学 2026-02-26 Bei Yan , Jie Zhang , Zheng Yuan , Shiguang Shan , Xilin Chen

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

Hallucinations in LLMs present a critical barrier to their reliable usage. Existing research usually categorizes hallucination by their external properties rather than by the LLMs' underlying internal properties. This external focus…

Large language models (LLMs) frequently generate hallucinations-content that deviates from factual accuracy or provided context-posing challenges for diagnosis due to the complex interplay of underlying causes. This paper introduces a…

计算与语言 · 计算机科学 2025-04-18 Yiyou Sun , Yu Gai , Lijie Chen , Abhilasha Ravichander , Yejin Choi , Dawn Song

Methods to evaluate Large Language Model (LLM) responses and detect inconsistencies, also known as hallucinations, with respect to the provided knowledge, are becoming increasingly important for LLM applications. Current metrics fall short…

计算与语言 · 计算机科学 2024-07-16 Hannah Sansford , Nicholas Richardson , Hermina Petric Maretic , Juba Nait Saada

This paper primarily focuses on the hallucinations caused due to AI language models(LLMs).LLMs have shown extraordinary Language understanding and generation capabilities .Still it has major a disadvantage hallucinations which give outputs…

计算与语言 · 计算机科学 2026-04-07 Sailesh kiran kurra , Shiek Ruksana , Vishal Borusu

Hallucinations are one of the major issues affecting LLMs, hindering their wide adoption in production systems. While current research solutions for detecting hallucinations are mainly based on heuristics, in this paper we introduce a…

计算与语言 · 计算机科学 2025-02-14 Emanuele Ricco , Lorenzo Cima , Roberto Di Pietro

Multimodal large language models (MLLMs) have revolutionized the landscape of AI, demonstrating impressive capabilities in tackling complex vision and audio-language tasks. However, a critical challenge remains: these models often suffer…

机器学习 · 计算机科学 2026-05-05 Itai Allouche , Joseph Keshet

Recently, multimodal large language models (MLLMs) have demonstrated remarkable performance in visual-language tasks. However, the authenticity of the responses generated by MLLMs is often compromised by object hallucinations. We identify…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Shuo Li , Jiajun Sun , Guodong Zheng , Xiaoran Fan , Yujiong Shen , Yi Lu , Zhiheng Xi , Yuming Yang , Wenming Tan , Tao Ji , Tao Gui , Qi Zhang , Xuanjing Huang

Monocular depth foundation models achieve remarkable generalization by learning large-scale semantic priors, but this creates a critical vulnerability: they hallucinate illusory 3D structures from geometrically planar but perceptually…

计算机视觉与模式识别 · 计算机科学 2025-12-18 Hoang Nguyen , Xiaohao Xu , Xiaonan Huang

Hallucination remains a critical challenge for deploying Large Language Models (LLMs) in finance. Accurate extraction and precise calculation from tabular data are essential for reliable financial analysis, since even minor numerical errors…

机器学习 · 计算机科学 2025-10-27 Mengao Zhang , Jiayu Fu , Tanya Warrier , Yuwen Wang , Tianhui Tan , Ke-wei Huang

Hallucination detection is critical for ensuring the reliability of large language models (LLMs) in context-based generation. Prior work has explored intrinsic signals available during generation, among which attention offers a direct view…

计算与语言 · 计算机科学 2026-02-23 Siya Qi , Yudong Chen , Runcong Zhao , Qinglin Zhu , Zhanghao Hu , Wei Liu , Yulan He , Zheng Yuan , Lin Gui