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Large Language Models have rapidly advanced in their ability to interpret and generate natural language. In enterprise settings, they are frequently augmented with closed-source domain knowledge to deliver more contextually informed…

计算与语言 · 计算机科学 2025-12-03 Tanmay Agrawal

Large Language Models (LLMs) are increasingly used in various contexts, yet remain prone to generating non-factual content, commonly referred to as "hallucinations". The literature categorizes hallucinations into several types, including…

计算与语言 · 计算机科学 2025-03-12 Samir Abdaljalil , Hasan Kurban , Erchin Serpedin

We propose semantic entropy probes (SEPs), a cheap and reliable method for uncertainty quantification in Large Language Models (LLMs). Hallucinations, which are plausible-sounding but factually incorrect and arbitrary model generations,…

计算与语言 · 计算机科学 2024-06-25 Jannik Kossen , Jiatong Han , Muhammed Razzak , Lisa Schut , Shreshth Malik , Yarin Gal

Vision-language models (VLMs) frequently generate hallucinated content plausible but incorrect claims about image content. We propose a training-free self-correction framework enabling VLMs to iteratively refine responses through…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Kassoum Sanogo , Renzo Ardiccioni

In text generation, hallucinations refer to the generation of seemingly coherent text that contradicts established knowledge. One compelling hypothesis is that hallucinations occur when a language model is given a generation task outside…

计算与语言 · 计算机科学 2024-08-21 Ameya Godbole , Nicholas Monath , Seungyeon Kim , Ankit Singh Rawat , Andrew McCallum , Manzil Zaheer

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

Data is the engine of modern computer vision, which necessitates collecting large-scale datasets. This is expensive, and guaranteeing the quality of the labels is a major challenge. In this paper, we investigate efficient annotation…

计算机视觉与模式识别 · 计算机科学 2021-04-27 Yuan-Hong Liao , Amlan Kar , Sanja Fidler

Hallucinations in Large Vision-Language Models (LVLMs) significantly undermine their reliability, motivating researchers to explore the causes of hallucination. However, most studies primarily focus on the language aspect rather than the…

计算机视觉与模式识别 · 计算机科学 2025-04-02 Zhangqi Jiang , Junkai Chen , Beier Zhu , Tingjin Luo , Yankun Shen , Xu Yang

The advent of large language models (LLMs) has facilitated the development of natural language text generation. It also poses unprecedented challenges, with content hallucination emerging as a significant concern. Existing solutions often…

计算与语言 · 计算机科学 2024-06-06 Xiaoxi Sun , Jinpeng Li , Yan Zhong , Dongyan Zhao , Rui Yan

Large Language Models (LLMs) have demonstrated remarkable human-level natural language generation capabilities. However, their potential to generate misinformation, often called the hallucination problem, poses a significant risk to their…

计算与语言 · 计算机科学 2023-10-16 Sehyun Choi , Tianqing Fang , Zhaowei Wang , Yangqiu Song

Despite the recent advancement in large language models (LLMs) and their high performances across numerous benchmarks, recent research has unveiled that LLMs suffer from hallucinations and unfaithful reasoning. This work studies a specific…

计算与语言 · 计算机科学 2024-04-09 Bangzheng Li , Ben Zhou , Fei Wang , Xingyu Fu , Dan Roth , Muhao Chen

Large Language Models (LLMs) have gained widespread adoption in various natural language processing tasks, including question answering and dialogue systems. However, a major drawback of LLMs is the issue of hallucination, where they…

计算与语言 · 计算机科学 2024-07-08 Yuyan Chen , Qiang Fu , Yichen Yuan , Zhihao Wen , Ge Fan , Dayiheng Liu , Dongmei Zhang , Zhixu Li , Yanghua Xiao

Large language models (LLMs) have demonstrated impressive performance in both research and real-world applications, but they still struggle with hallucination. Existing hallucination detection methods often perform poorly on sentence-level…

计算与语言 · 计算机科学 2025-09-01 Weizhi Gao , Xiaorui Liu , Feiyi Wang , Dan Lu , Junqi Yin

LLMs obtain remarkable performance but suffer from hallucinations. Most research on detecting hallucination focuses on the questions with short and concrete correct answers that are easy to check the faithfulness. Hallucination detections…

计算与语言 · 计算机科学 2025-03-10 Xinyue Fang , Zhen Huang , Zhiliang Tian , Minghui Fang , Ziyi Pan , Quntian Fang , Zhihua Wen , Hengyue Pan , Dongsheng Li

Hallucination detection remains a fundamental challenge for the safe and reliable deployment of large language models (LLMs), especially in applications requiring factual accuracy. Existing hallucination benchmarks often operate at the…

Large Language Models (LLMs) excel in fluency but risk producing inaccurate content, called "hallucinations." This paper outlines a standardized process for categorizing fine-grained hallucination types and proposes an innovative…

计算与语言 · 计算机科学 2024-07-02 Kunquan Deng , Zeyu Huang , Chen Li , Chenghua Lin , Min Gao , Wenge Rong

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) have transformed the Natural Language Processing (NLP) landscape with their remarkable ability to understand and generate human-like text. However, these models are prone to ``hallucinations'' -- outputs that do…

Large language models (LLMs) frequently generate confident yet inaccurate responses, introducing significant risks for deployment in safety-critical domains. We present a novel, test-time approach to detecting model hallucination through…

机器学习 · 计算机科学 2025-10-07 Hazel Kim , Tom A. Lamb , Adel Bibi , Philip Torr , Yarin Gal

Over the past few years, Large Language Models (LLMs) have developed rapidly and are widely applied in various domains. However, LLMs face the issue of hallucinations, generating responses that may be unreliable when the models lack…

计算与语言 · 计算机科学 2025-05-12 Huan Ma , Jingdong Chen , Joey Tianyi Zhou , Guangyu Wang , Changqing Zhang