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With the promising progress of deep neural networks, layer aggregation has been used to fuse information across layers in various fields, such as computer vision and machine translation. However, most of the previous methods combine layers…

Computation and Language · Computer Science 2019-02-18 Zi-Yi Dou , Zhaopeng Tu , Xing Wang , Longyue Wang , Shuming Shi , Tong Zhang

Multi-modal large language models (MLLMs) have been shown to efficiently integrate natural language with visual information to handle multi-modal tasks. However, MLLMs still face a fundamental limitation of hallucinations, where they tend…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Chaoya Jiang , Haiyang Xu , Mengfan Dong , Jiaxing Chen , Wei Ye , Ming Yan , Qinghao Ye , Ji Zhang , Fei Huang , Shikun Zhang

Large Language Models (LLMs) excel in language comprehension and generation but are prone to hallucinations, producing factually incorrect or unsupported outputs. Retrieval Augmented Generation (RAG) systems address this issue by grounding…

Information Retrieval · Computer Science 2025-04-09 Chandana Sree Mala , Gizem Gezici , Fosca Giannotti

The popularity of automated news headline generation has surged with advancements in pre-trained language models. However, these models often suffer from the ``hallucination'' problem, where the generated headline is not fully supported by…

Computation and Language · Computer Science 2024-07-24 Jiaming Shen , Tianqi Liu , Jialu Liu , Zhen Qin , Jay Pavagadhi , Simon Baumgartner , Michael Bendersky

Large Language Models (LLMs) still face challenges when dealing with complex reasoning tasks, often resulting in hallucinations, which limit the practical application of LLMs. To alleviate this issue, this paper proposes a new method that…

Artificial Intelligence · Computer Science 2024-11-26 Zhihua Duan , Jialin Wang

Recently, Transformer-based encoder-decoder models have demonstrated strong performance in multilingual speech recognition. However, the decoder's autoregressive nature and large size introduce significant bottlenecks during inference.…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-28 Yunkyu Lim , Jihwan Park , Hyung Yong Kim , Hanbin Lee , Byeong-Yeol Kim

Hallucinations pose a significant challenge to the reliability of large vision-language models, making their detection essential for ensuring accuracy in critical applications. Current detection methods often rely on computationally…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Eunkyu Park , Minyeong Kim , Gunhee Kim

Hallucination in text summarization refers to the phenomenon where the model generates information that is not supported by the input source document. Hallucination poses significant obstacles to the accuracy and reliability of the…

Computation and Language · Computer Science 2023-10-02 Tohida Rehman , Ronit Mandal , Abhishek Agarwal , Debarshi Kumar Sanyal

Large Language Models (LLMs) often generate incorrect or unsupported content, known as hallucinations. Existing detection methods rely on heuristics or simple models over isolated computational traces such as activations, or attention maps.…

Machine Learning · Computer Science 2025-09-30 Fabrizio Frasca , Guy Bar-Shalom , Yftah Ziser , Haggai Maron

We present MedHal, a novel large-scale dataset specifically designed to evaluate if models can detect hallucinations in medical texts. Current hallucination detection methods face significant limitations when applied to specialized domains…

Computation and Language · Computer Science 2025-10-08 Gaya Mehenni , Fabrice Lamarche , Odette Rios-Ibacache , John Kildea , Amal Zouaq

Despite significant strides in multimodal tasks, Multimodal Large Language Models (MLLMs) are plagued by the critical issue of hallucination. The reliable detection of such hallucinations in MLLMs has, therefore, become a vital aspect of…

Computation and Language · Computer Science 2024-05-28 Xiang Chen , Chenxi Wang , Yida Xue , Ningyu Zhang , Xiaoyan Yang , Qiang Li , Yue Shen , Lei Liang , Jinjie Gu , Huajun Chen

Neural machine translation is a recently proposed approach to machine translation. Unlike the traditional statistical machine translation, the neural machine translation aims at building a single neural network that can be jointly tuned to…

Computation and Language · Computer Science 2016-05-23 Dzmitry Bahdanau , Kyunghyun Cho , Yoshua Bengio

Within the area of speech enhancement, there is an ongoing interest in the creation of neural systems which explicitly aim to improve the perceptual quality of the processed audio. In concert with this is the topic of non-intrusive (i.e.…

Sound · Computer Science 2024-05-27 George Close , Thomas Hain , Stefan Goetze

A common and fundamental limitation of Generative AI (GenAI) is its propensity to hallucinate. While large language models (LLM) have taken the world by storm, without eliminating or at least reducing hallucinations, real-world GenAI…

Machine Learning · Computer Science 2024-12-03 Patrice Béchard , Orlando Marquez Ayala

Hallucination detection in Large Language Models (LLMs) is crucial for ensuring their reliability. This work presents our participation in the CLEF ELOQUENT HalluciGen shared task, where the goal is to develop evaluators for both generating…

The increasing use of large language models (LLMs) in causal discovery as a substitute for human domain experts highlights the need for optimal model selection. This paper presents the first hallucination survey of popular LLMs for causal…

Computation and Language · Computer Science 2024-11-21 Grace Sng , Yanming Zhang , Klaus Mueller

Hallucinations pose a significant obstacle to the reliability and widespread adoption of language models, yet their accurate measurement remains a persistent challenge. While many task- and domain-specific metrics have been proposed to…

Computation and Language · Computer Science 2025-10-10 Atharva Kulkarni , Yuan Zhang , Joel Ruben Antony Moniz , Xiou Ge , Bo-Hsiang Tseng , Dhivya Piraviperumal , Swabha Swayamdipta , Hong Yu

Large Language Models (LLMs) have shown propensity to generate hallucinated outputs, i.e., texts that are factually incorrect or unsupported. Existing methods for alleviating hallucinations typically require costly human annotations to…

Computation and Language · Computer Science 2024-04-03 Yu Xia , Xu Liu , Tong Yu , Sungchul Kim , Ryan A. Rossi , Anup Rao , Tung Mai , Shuai Li

In real-world applications, Large Language Models (LLMs) often hallucinate, even in Retrieval-Augmented Generation (RAG) settings, which poses a significant challenge to their deployment. In this paper, we introduce AggTruth, a method for…

Artificial Intelligence · Computer Science 2025-06-24 Piotr Matys , Jan Eliasz , Konrad Kiełczyński , Mikołaj Langner , Teddy Ferdinan , Jan Kocoń , Przemysław Kazienko

Large language models (LLMs) can be prone to hallucinations - generating unreliable outputs that are unfaithful to their inputs, external facts or internally inconsistent. In this work, we address several challenges for post-hoc…

Computation and Language · Computer Science 2024-08-12 Simon Valentin , Jinmiao Fu , Gianluca Detommaso , Shaoyuan Xu , Giovanni Zappella , Bryan Wang