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Large Vision-Language Models (LVLMs) usually generate texts which satisfy context coherence but don't match the visual input. Such a hallucination issue hinders LVLMs' applicability in the real world. The key to solving hallucination in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Nanxing Hu , Xiaoyue Duan , Jinchao Zhang , Guoliang Kang

This study addresses the problem of hallucinated span detection in the outputs of large language models. It has received less attention than output-level hallucination detection despite its practical importance. Prior work has shown that…

Computation and Language · Computer Science 2025-09-16 Yuya Ogasa , Yuki Arase

Large Language Models (LLMs) have gained significant popularity for their impressive performance across diverse fields. However, LLMs are prone to hallucinate untruthful or nonsensical outputs that fail to meet user expectations in many…

Computation and Language · Computer Science 2023-11-23 Tianhang Zhang , Lin Qiu , Qipeng Guo , Cheng Deng , Yue Zhang , Zheng Zhang , Chenghu Zhou , Xinbing Wang , Luoyi Fu

Large Language Models (LLMs) are widely used in critical fields such as healthcare, education, and finance due to their remarkable proficiency in various language-related tasks. However, LLMs are prone to generating factually incorrect…

Computation and Language · Computer Science 2023-11-27 Muneeswaran I , Shreya Saxena , Siva Prasad , M V Sai Prakash , Advaith Shankar , Varun V , Vishal Vaddina , Saisubramaniam Gopalakrishnan

Retrieval-augmented generation (RAG) aims to reduce hallucinations by grounding responses in external context, yet large language models (LLMs) still frequently introduce unsupported information or contradictions even when provided with…

Computation and Language · Computer Science 2025-11-07 Manveer Singh Tamber , Forrest Sheng Bao , Chenyu Xu , Ge Luo , Suleman Kazi , Minseok Bae , Miaoran Li , Ofer Mendelevitch , Renyi Qu , Jimmy Lin

Language models, particularly generative models, are susceptible to hallucinations, generating outputs that contradict factual knowledge or the source text. This study explores methods for detecting hallucinations in three SemEval-2024 Task…

Large Language Models (LLMs) are increasingly deployed in enterprise applications, yet their reliability remains limited by hallucinations, i.e., confident but factually incorrect information. Existing detection approaches, such as…

Computation and Language · Computer Science 2025-11-10 Channdeth Sok , David Luz , Yacine Haddam

Large language models are extensively applied across a wide range of tasks, such as customer support, content creation, educational tutoring, and providing financial guidance. However, a well-known drawback is their predisposition to…

Computation and Language · Computer Science 2024-07-08 Noa Nonkes , Sergei Agaronian , Evangelos Kanoulas , Roxana Petcu

Hallucination remains a key obstacle to the reliable deployment of large language models (LLMs) in real-world question answering tasks. A widely adopted strategy to detect hallucination, known as self-assessment, relies on the model's own…

Artificial Intelligence · Computer Science 2025-06-04 Jinyuan Luo , Zhen Fang , Yixuan Li , Seongheon Park , Ling Chen

Vision-Language Models (VLMs) have become essential backbones of modern multimodal intelligence, yet their outputs remain prone to hallucination-plausible text misaligned with visual inputs. Existing alignment approaches often rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Kejia Chen , Jiawen Zhang , Jiacong Hu , Kewei Gao , Jian Lou , Zunlei Feng , Mingli Song

Despite significant progress in the quality of language generated from abstractive summarization models, these models still exhibit the tendency to hallucinate, i.e., output content not supported by the source document. A number of works…

Computation and Language · Computer Science 2022-11-01 Liam van der Poel , Ryan Cotterell , Clara Meister

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…

Computation and Language · Computer Science 2025-09-01 Weizhi Gao , Xiaorui Liu , Feiyi Wang , Dan Lu , Junqi Yin

The widespread adoption of Large Language Models (LLMs) has been hindered by their tendency to hallucinate, generating plausible but factually incorrect information. While Retrieval-Augmented Generation (RAG) systems attempt to address this…

Computation and Language · Computer Science 2025-09-23 Selva Taş , Mahmut El Huseyni , Özay Ezerceli , Reyhan Bayraktar , Fatma Betül Terzioğlu

Hallucinations, the generation of apparently convincing yet false statements, remain a major barrier to the safe deployment of LLMs. Building on the strong performance of self-detection methods, we examine the use of structured knowledge…

Computation and Language · Computer Science 2025-12-30 Sahil Kale , Antonio Luca Alfeo

Large Language Models~(LLMs) are prone to hallucinations, and Retrieval-Augmented Generation (RAG) helps mitigate this, but at a high computational cost while risking misinformation. Adaptive retrieval aims to retrieve only when necessary,…

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by integrating them with an external knowledge base to improve the answer relevance and accuracy. In real-world scenarios, beyond pure text, a substantial amount of…

Computation and Language · Computer Science 2025-10-07 Jiaru Zou , Dongqi Fu , Sirui Chen , Xinrui He , Zihao Li , Yada Zhu , Jiawei Han , Jingrui He

Retrieval-augmented generation (RAG) frameworks enable large language models (LLMs) to retrieve relevant information from a knowledge base and incorporate it into the context for generating responses. This mitigates hallucinations and…

Computation and Language · Computer Science 2024-04-09 Pouria Rouzrokh , Shahriar Faghani , Cooper U. Gamble , Moein Shariatnia , Bradley J. Erickson

Diagnosing failure patterns in Deep Research Agents (DRAs) remains a critical challenge. Existing benchmarks predominantly rely on end-to-end evaluation, obscuring intermediate hallucinations that accumulate throughout the research…

Artificial Intelligence · Computer Science 2026-05-26 Yuhao Zhan , Tianyu Fan , Linxuan Huang , Zirui Guo , Chao Huang

Retrieval-augmented generation (RAG) has demonstrated effectiveness in mitigating the hallucination problem of large language models (LLMs). However, the difficulty of aligning the retriever with the diverse LLMs' knowledge preferences…

Computation and Language · Computer Science 2024-07-19 Guanting Dong , Yutao Zhu , Chenghao Zhang , Zechen Wang , Zhicheng Dou , Ji-Rong Wen

Data-to-Text Generation (DTG) is a subfield of Natural Language Generation aiming at transcribing structured data in natural language descriptions. The field has been recently boosted by the use of neural-based generators which exhibit on…

Computation and Language · Computer Science 2021-07-12 Clément Rebuffel , Marco Roberti , Laure Soulier , Geoffrey Scoutheeten , Rossella Cancelliere , Patrick Gallinari