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Related papers: Teaming LLMs to Detect and Mitigate Hallucinations

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Recently developed large language models have achieved remarkable success in generating fluent and coherent text. However, these models often tend to 'hallucinate' which critically hampers their reliability. In this work, we address this…

Computation and Language · Computer Science 2023-08-15 Neeraj Varshney , Wenlin Yao , Hongming Zhang , Jianshu Chen , Dong Yu

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…

Computation and Language · Computer Science 2024-07-08 Yuyan Chen , Qiang Fu , Yichen Yuan , Zhihao Wen , Ge Fan , Dayiheng Liu , Dongmei Zhang , Zhixu Li , Yanghua Xiao

This research work delves into the manifestation of hallucination within Large Language Models (LLMs) and its consequential impacts on applications within the domain of mental health. The primary objective is to discern effective strategies…

Computation and Language · Computer Science 2024-10-16 Abdul Muqtadir , Hafiz Syed Muhammad Bilal , Ayesha Yousaf , Hafiz Farooq Ahmed , Jamil Hussain

Large Language Models (LLMs) are known to hallucinate and generate non-factual outputs which can undermine user trust. Traditional methods to directly mitigate hallucinations, such as representation editing and contrastive decoding, often…

Machine Learning · Computer Science 2025-03-11 Prasenjit Dey , Srujana Merugu , Sivaramakrishnan Kaveri

Despite efforts to expand the knowledge of large language models (LLMs), knowledge gaps -- missing or outdated information in LLMs -- might always persist given the evolving nature of knowledge. In this work, we study approaches to identify…

Computation and Language · Computer Science 2024-07-02 Shangbin Feng , Weijia Shi , Yike Wang , Wenxuan Ding , Vidhisha Balachandran , Yulia Tsvetkov

Machine Translation (MT) is undergoing a paradigm shift, with systems based on fine-tuned large language models (LLM) becoming increasingly competitive with traditional encoder-decoder models trained specifically for translation tasks.…

Computation and Language · Computer Science 2025-01-30 Zilu Tang , Rajen Chatterjee , Sarthak Garg

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

We develop a principled procedure for determining when a large language model (LLM) should abstain from responding (e.g., by saying "I don't know") in a general domain, instead of resorting to possibly "hallucinating" a non-sensical or…

Large Language Models (LLMs) have demonstrated advanced capabilities but often suffer from factual inaccuracies (hallucinations) and systematic biases. These issues, sometimes amplified in specific architectures like Mixture-of-Experts…

Computation and Language · Computer Science 2026-04-28 Shuai Wu , Xue Li , Yanna Feng , Yufang Li , Zhijun Wang , Ran Wang

Large Language Models (LLMs) are increasingly deployed in safety-critical domains, yet remain susceptible to hallucinations. While prior works have proposed confidence representation methods for hallucination detection, most of these…

Machine Learning · Computer Science 2025-11-17 Elyes Hajji , Aymen Bouguerra , Fabio Arnez

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

The rapid advancement of large language models (LLMs) has significantly impacted various domains, including healthcare and biomedicine. However, the phenomenon of hallucination, where LLMs generate outputs that deviate from factual accuracy…

Computation and Language · Computer Science 2024-08-27 Duy Khoa Pham , Bao Quoc Vo

Recent advancements in massively multilingual machine translation systems have significantly enhanced translation accuracy; however, even the best performing systems still generate hallucinations, severely impacting user trust. Detecting…

Computation and Language · Computer Science 2024-10-22 Kenza Benkirane , Laura Gongas , Shahar Pelles , Naomi Fuchs , Joshua Darmon , Pontus Stenetorp , David Ifeoluwa Adelani , Eduardo Sánchez

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

Hallucination detection is critical for ensuring the reliability of large language models (LLMs) in context-based generation. Prior work has explored intrinsic signals available during generation, among which attention offers a direct view…

Computation and Language · Computer Science 2026-02-23 Siya Qi , Yudong Chen , Runcong Zhao , Qinglin Zhu , Zhanghao Hu , Wei Liu , Yulan He , Zheng Yuan , Lin Gui

Hallucination, a phenomenon where large language models (LLMs) produce output that is factually incorrect or unrelated to the input, is a major challenge for LLM applications that require accuracy and dependability. In this paper, we…

Computation and Language · Computer Science 2025-04-01 Song Wang , Xun Wang , Jie Mei , Yujia Xie , Sean Muarray , Zhang Li , Lingfeng Wu , Si-Qing Chen , Wayne Xiong

Hallucinations of vision-language models (VLMs), which are misalignments between visual content and generated text, undermine the reliability of VLMs. One common approach for detecting them employs the same VLM, or a different one, to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Ofir Azachi , Kfir Eliyahu , Eyal El Ani , Rom Himelstein , Roi Reichart , Yuval Pinter , Nitay Calderon

Recent advances in large language models (LLMs) have shown promising improvements, often surpassing existing methods across a wide range of downstream tasks in natural language processing. However, these models still face challenges, which…

Computation and Language · Computer Science 2025-02-13 Sujeong Lee , Hayoung Lee , Seongsoo Heo , Wonik Choi

Hallucination, where large language models (LLMs) generate confident but incorrect or irrelevant information, remains a key limitation in their application to complex, open-ended tasks. Chain-of-thought (CoT) prompting has emerged as a…

Artificial Intelligence · Computer Science 2025-05-15 Adarsh Kumar , Hwiyoon Kim , Jawahar Sai Nathani , Neil Roy

How to alleviate the hallucinations of Large Language Models (LLMs) has always been the fundamental goal pursued by the LLMs research community. Looking through numerous hallucination-related studies, a mainstream category of methods is to…

Computation and Language · Computer Science 2025-02-12 Yinghui Li , Haojing Huang , Jiayi Kuang , Yangning Li , Shu-Yu Guo , Chao Qu , Xiaoyu Tan , Hai-Tao Zheng , Ying Shen , Philip S. Yu