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OpenAI has recently argued that hallucinations in large language models result primarily from misaligned evaluation incentives that reward confident guessing rather than epistemic humility. On this view, hallucination is a contingent…

计算与语言 · 计算机科学 2025-12-18 Richard Ackermann , Simeon Emanuilov

Image captioning models are becoming increasingly successful at describing the content of images in restricted domains. However, if these models are to function in the wild - for example, as assistants for people with impaired vision - a…

计算机视觉与模式识别 · 计算机科学 2018-11-29 Peter Anderson , Stephen Gould , Mark Johnson

We show that object detectors can hallucinate and detect missing objects; potentially even accurately localized at their expected, but non-existing, position. This is particularly problematic for applications that rely on visual part…

计算机视觉与模式识别 · 计算机科学 2021-06-07 Osman Semih Kayhan , Bart Vredebregt , Jan C. van Gemert

Object detection is a fundamental task in computer vision, requiring large annotated datasets that are difficult to collect, as annotators need to label objects and their bounding boxes. Thus, it is a significant challenge to use cheaper…

计算机视觉与模式识别 · 计算机科学 2020-10-01 Achiya Jerbi , Roei Herzig , Jonathan Berant , Gal Chechik , Amir Globerson

Hallucination, or the generation of incorrect or fabricated information, remains a critical challenge in large language models (LLMs), particularly in high-stake domains such as legal question answering (QA). In order to mitigate the…

计算与语言 · 计算机科学 2025-01-14 Yinghao Hu , Leilei Gan , Wenyi Xiao , Kun Kuang , Fei Wu

Automatically captioning images with natural language sentences is an important research topic. State of the art models are able to produce human-like sentences. These models typically describe the depicted scene as a whole and do not…

计算机视觉与模式识别 · 计算机科学 2019-08-07 Philipp Harzig , Stephan Brehm , Rainer Lienhart , Carolin Kaiser , René Schallner

Large Vision-Language Models (LVLMs) are susceptible to object hallucinations, an issue in which their generated text contains non-existent objects, greatly limiting their reliability and practicality. Current approaches often rely on the…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Ailin Deng , Zhirui Chen , Bryan Hooi

Large Vision Language Models (LVLMs) have demonstrated remarkable capabilities in understanding and describing visual content, achieving state-of-the-art performance across various vision-language tasks. However, these models often generate…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Kazi Hasan Ibn Arif , Sajib Acharjee Dip , Khizar Hussain , Lang Zhang , Chris Thomas

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

Unsupervised image captioning is a challenging task that aims at generating captions without the supervision of image-sentence pairs, but only with images and sentences drawn from different sources and object labels detected from the…

计算与语言 · 计算机科学 2021-06-02 Ukyo Honda , Yoshitaka Ushiku , Atsushi Hashimoto , Taro Watanabe , Yuji Matsumoto

In lossy image compression, models face the challenge of either hallucinating details or generating out-of-distribution samples due to the information bottleneck. This implies that at times, introducing hallucinations is necessary to…

图像与视频处理 · 电气工程与系统科学 2025-03-07 Till Aczel , Roger Wattenhofer

Multimodal language models possess a remarkable ability to handle an open-vocabulary's worth of objects. Yet the best models still suffer from hallucinations when reasoning about scenes in the real world, revealing a gap between their…

机器学习 · 计算机科学 2025-11-07 Candace Ross , Florian Bordes , Adina Williams , Polina Kirichenko , Mark Ibrahim

The troubling rise of hallucination presents perhaps the most significant impediment to the advancement of responsible AI. In recent times, considerable research has focused on detecting and mitigating hallucination in Large Language Models…

人工智能 · 计算机科学 2024-04-02 Anku Rani , Vipula Rawte , Harshad Sharma , Neeraj Anand , Krishnav Rajbangshi , Amit Sheth , Amitava Das

When asked to summarize articles or answer questions given a passage, large language models (LLMs) can hallucinate details and respond with unsubstantiated answers that are inaccurate with respect to the input context. This paper describes…

计算与语言 · 计算机科学 2024-10-04 Yung-Sung Chuang , Linlu Qiu , Cheng-Yu Hsieh , Ranjay Krishna , Yoon Kim , James Glass

Despite the remarkable accuracy of deep neural networks in object detection, they are costly to train and scale due to supervision requirements. Particularly, learning more object categories typically requires proportionally more bounding…

计算机视觉与模式识别 · 计算机科学 2021-03-16 Alireza Zareian , Kevin Dela Rosa , Derek Hao Hu , Shih-Fu Chang

Scalable annotation approaches are crucial for constructing extensive 3D-text datasets, facilitating a broader range of applications. However, existing methods sometimes lead to the generation of hallucinated captions, compromising caption…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Tiange Luo , Justin Johnson , Honglak Lee

While many capabilities of language models (LMs) improve with increased training budget, the influence of scale on hallucinations is not yet fully understood. Hallucinations come in many forms, and there is no universally accepted…

In the dynamic landscape of artificial intelligence, the exploration of hallucinations within vision-language (VL) models emerges as a critical frontier. This work delves into the intricacies of hallucinatory phenomena exhibited by widely…

计算机视觉与模式识别 · 计算机科学 2025-08-04 Maria Lymperaiou , Giorgos Filandrianos , Angeliki Dimitriou , Athanasios Voulodimos , Giorgos Stamou

Text-to-image generation has shown remarkable progress with the emergence of diffusion models. However, these models often generate factually inconsistent images, failing to accurately reflect the factual information and common sense…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Youngsun Lim , Hyunjung Shim

While the problem of hallucinations in neural machine translation has long been recognized, so far the progress on its alleviation is very little. Indeed, recently it turned out that without artificially encouraging models to hallucinate,…

计算与语言 · 计算机科学 2022-12-21 David Dale , Elena Voita , Loïc Barrault , Marta R. Costa-jussà