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Large Language Models (LLMs) demonstrate impressive capabilities in natural language processing but suffer from inaccuracies and logical inconsistencies known as hallucinations. This compromises their reliability, especially in domains…

Artificial Intelligence · Computer Science 2025-12-08 Ruslan Idelfonso Magana Vsevolodovna , Marco Monti

Understanding the internal thinking process of Large Language Models (LLMs) and the cause of hallucinations remains a key challenge. To this end, we introduce latent debate, a novel framework for interpreting model predictions through the…

Computation and Language · Computer Science 2026-02-03 Lihu Chen , Xiang Yin , Francesca Toni

The Large Visual Language Models (LVLMs) enhances user interaction and enriches user experience by integrating visual modality on the basis of the Large Language Models (LLMs). It has demonstrated their powerful information processing and…

Artificial Intelligence · Computer Science 2024-10-22 Wei Lan , Wenyi Chen , Qingfeng Chen , Shirui Pan , Huiyu Zhou , Yi Pan

Large Language Models (LLMs) are increasingly deployed in high-stakes financial domains, yet they suffer from specific, reproducible hallucinations when performing arithmetic operations. Current mitigation strategies often treat the model…

Computation and Language · Computer Science 2025-12-01 Soham Mirajkar

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…

The Retrieval-augmented generation (RAG) system based on Large language model (LLM) has made significant progress. It can effectively reduce factuality hallucinations, but faithfulness hallucinations still exist. Previous methods for…

Computation and Language · Computer Science 2026-01-07 Jianpeng Hu , Yanzeng Li , Jialun Zhong , Wenfa Qi , Lei Zou

Despite their powerful chat, coding, and reasoning abilities, Large Language Models (LLMs) frequently hallucinate. Conventional wisdom suggests that hallucinations are a consequence of a balance between creativity and factuality, which can…

Recent work suggests that LLMs "know what they don't know", positing that hallucinated and factually correct outputs arise from distinct internal processes and can therefore be distinguished using internal signals. However, hallucinations…

Computation and Language · Computer Science 2026-04-20 Chi Seng Cheang , Hou Pong Chan , Wenxuan Zhang , Yang Deng

Pretrained Large Language Models (LLMs) are prone to generating fluent yet factually incorrect text-a phenomenon known as hallucinations, undermining their reliability and utility in downstream tasks. We hypothesize that a generated text…

Computation and Language · Computer Science 2026-03-10 Koduvayur Subbalakshmi , Sabbir Hossain Ujjal , Venkata Krishna Teja Mangichetty , Nastaran Jamalipour Soofi

As large language models (LLMs) evolve from conversational assistants into agents capable of handling complex tasks, they are increasingly deployed in high-risk domains. However, existing benchmarks largely rely on mixed queries and…

Computation and Language · Computer Science 2026-04-28 Yuhe Wu , Guangyu Wang , Yuran Chen , Jiatong Zhang , Yutong Zhang , Yujie Chen , Jiaming Shang , Guang Zhang , Zhuang Liu

The propensity of Large Language Models (LLMs) to generate hallucinations and non-factual content undermines their reliability in high-stakes domains, where rigorous control over Type I errors (the conditional probability of incorrectly…

Computation and Language · Computer Science 2024-11-08 Fan Nie , Xiaotian Hou , Shuhang Lin , James Zou , Huaxiu Yao , Linjun Zhang

Hallucinations in large language models (LLMs) have recently become a significant problem. A recent effort in this direction is a shared task at Semeval 2024 Task 6, SHROOM, a Shared-task on Hallucinations and Related Observable…

Computation and Language · Computer Science 2024-04-12 Rahul Mehta , Andrew Hoblitzell , Jack O'Keefe , Hyeju Jang , Vasudeva Varma

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…

Computation and Language · Computer Science 2024-04-09 Bangzheng Li , Ben Zhou , Fei Wang , Xingyu Fu , Dan Roth , Muhao Chen

Large Language Models (LLMs) have recently garnered widespread attention due to their adeptness at generating innovative responses to the given prompts across a multitude of domains. However, LLMs often suffer from the inherent limitation…

Computation and Language · Computer Science 2025-04-15 Sharanya Dasgupta , Sujoy Nath , Arkaprabha Basu , Pourya Shamsolmoali , Swagatam Das

Despite their vast capabilities, Large Language Models (LLMs) often struggle with generating reliable outputs, frequently producing high-confidence inaccuracies known as hallucinations. Addressing this challenge, our research introduces…

Computation and Language · Computer Science 2024-06-19 Mohammad Beigi , Ying Shen , Runing Yang , Zihao Lin , Qifan Wang , Ankith Mohan , Jianfeng He , Ming Jin , Chang-Tien Lu , Lifu Huang

Hallucination detection methods for large language models increasingly operate on chain-of-thought reasoning traces, yet it remains unclear whether they evaluate the reasoning itself or merely exploit surface correlates of the final answer.…

Computation and Language · Computer Science 2026-05-12 Geigh Zollicoffer , Minh Vu , Hongli Zhan , Raymond Li , Manish Bhattarai

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…

Computation and Language · Computer Science 2025-02-14 Emanuele Ricco , Lorenzo Cima , Roberto Di Pietro

Enhancing the reasoning capabilities of Large Language Models (LLMs) is a key strategy for building Agents that "think then act." However, recent observations, like OpenAI's o3, suggest a paradox: stronger reasoning often coincides with…

Machine Learning · Computer Science 2026-04-20 Chenlong Yin , Zeyang Sha , Shiwen Cui , Changhua Meng , Zechao Li

Hallucinations in Large Language Models (LLMs), defined as the generation of content inconsistent with facts or context, represent a core obstacle to their reliable deployment in critical domains. Current research primarily focuses on…

Computation and Language · Computer Science 2026-03-20 Yanyi Liu , Qingwen Yang , Tiezheng Guo , Feiyu Qu , Jun Liu , Yingyou Wen

Large Language Models (LLMs) exhibit impressive reasoning and question-answering capabilities. However, they often produce inaccurate or unreliable content known as hallucinations. This unreliability significantly limits their deployment in…

Machine Learning · Computer Science 2025-09-16 Minh Vu , Brian K. Tran , Syed A. Shah , Geigh Zollicoffer , Nhat Hoang-Xuan , Manish Bhattarai