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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) are promising tools for supporting security management tasks, such as incident response planning. However, their unreliability and tendency to hallucinate remain significant challenges. In this paper, we address…

人工智能 · 计算机科学 2026-02-06 Kim Hammar , Tansu Alpcan , Emil Lupu

Large language models (LLMs) have been shown to possess impressive capabilities, while also raising crucial concerns about the faithfulness of their responses. A primary issue arising in this context is the management of (un)answerable…

计算与语言 · 计算机科学 2023-11-14 Aviv Slobodkin , Omer Goldman , Avi Caciularu , Ido Dagan , Shauli Ravfogel

Large language models (LLMs) have been found to produce hallucinations when the question exceeds their internal knowledge boundaries. A reliable model should have a clear perception of its knowledge boundaries, providing correct answers…

计算与语言 · 计算机科学 2024-08-20 Shiyu Ni , Keping Bi , Lulu Yu , Jiafeng Guo

Large Vision-Language Models (VLMs) have achieved remarkable multimodal performance yet remain prone to factual hallucinations, particularly in long-tail or specialized domains. Moreover, current models exhibit a weak capacity to refuse…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Junru Song , Yimeng Hu , Yijing Chen , Huining Li , Qian Li , Lizhen Cui , Yuntao Du

Refusal behavior in large language models (LLMs) enables them to decline responding to harmful, unethical, or inappropriate prompts, ensuring alignment with ethical standards. This paper investigates refusal behavior across six LLMs from…

计算与语言 · 计算机科学 2025-01-15 Fabian Hildebrandt , Andreas Maier , Patrick Krauss , Achim Schilling

Large language models (LLMs) have transformed natural language processing, achieving remarkable performance across diverse tasks. However, their impressive fluency often comes at the cost of producing false or fabricated information, a…

计算与语言 · 计算机科学 2026-03-20 Aisha Alansari , Hamzah Luqman

Large Language Models (LLMs) are versatile, yet they often falter in tasks requiring deep and reliable reasoning due to issues like hallucinations, limiting their applicability in critical scenarios. This paper introduces a rigorously…

计算与语言 · 计算机科学 2023-11-21 Saizhuo Wang , Zhihan Liu , Zhaoran Wang , Jian Guo

Large pre-trained language models have demonstrated their proficiency in storing factual knowledge within their parameters and achieving remarkable results when fine-tuned for downstream natural language processing tasks. Nonetheless, their…

计算与语言 · 计算机科学 2023-09-29 Konstantinos Andriopoulos , Johan Pouwelse

Large language models (LLMs) are able to generate human-like responses to user queries. However, LLMs exhibit inherent limitations, especially because they hallucinate. This paper introduces LP-LM, a system that grounds answers to questions…

人工智能 · 计算机科学 2025-02-14 Katherine Wu , Yanhong A. Liu

Large Language Models (LLMs) are emerging as promising approaches to enhance session-based recommendation (SBR), where both prompt-based and fine-tuning-based methods have been widely investigated to align LLMs with SBR. However, the former…

人工智能 · 计算机科学 2024-04-22 Ziyan Wang , Yingpeng Du , Zhu Sun , Haoyan Chua , Kaidong Feng , Wenya Wang , Jie Zhang

In recent years, large-scale language models (LLMs) have gained attention for their impressive text generation capabilities. However, these models often face the challenge of "hallucination," which undermines their reliability. In this…

计算与语言 · 计算机科学 2023-10-10 Yuchen Yang , Houqiang Li , Yanfeng Wang , Yu Wang

The utility of Large Language Models (LLMs) in analytical tasks is rooted in their vast pre-trained knowledge, which allows them to interpret ambiguous inputs and infer missing information. However, this same capability introduces a…

人工智能 · 计算机科学 2026-04-21 Humam Kourani , Anton Antonov , Alessandro Berti , Wil M. P. van der Aalst

While Large Language Models have transformed how we interact with AI systems, they suffer from a critical flaw: they confidently generate false information that sounds entirely plausible. This hallucination problem has become a major…

人工智能 · 计算机科学 2025-10-28 Piyushkumar Patel

Large Language Models (LLMs) and Large Reasoning Models (LRMs) offer transformative potential for high-stakes domains like finance and law, but their tendency to hallucinate, generating factually incorrect or unsupported content, poses a…

人工智能 · 计算机科学 2026-01-16 Ahmad Pesaranghader , Erin Li

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

In order to be deployed safely, Large Language Models (LLMs) must be capable of dynamically adapting their behavior based on their level of knowledge and uncertainty associated with specific topics. This adaptive behavior, which we refer to…

计算与语言 · 计算机科学 2024-07-04 Alexandre Piché , Aristides Milios , Dzmitry Bahdanau , Chris Pal

While large language models (LLMs) are proficient at question-answering (QA), it is not always clear how (or even if) an answer follows from their latent "beliefs". This lack of interpretability is a growing impediment to widespread use of…

计算与语言 · 计算机科学 2023-10-31 Nora Kassner , Oyvind Tafjord , Ashish Sabharwal , Kyle Richardson , Hinrich Schuetze , Peter Clark

Language models (LMs) are increasingly used to build agents that can act autonomously to achieve goals. During this automatic process, agents need to take a series of actions, some of which might lead to severe consequences if incorrect…

计算与语言 · 计算机科学 2025-10-01 Cheng-Kuang Wu , Zhi Rui Tam , Chieh-Yen Lin , Yun-Nung Chen , Hung-yi Lee

Self-detection for Large Language Models (LLMs) seeks to evaluate the trustworthiness of the LLM's output by leveraging its own capabilities, thereby alleviating the issue of output hallucination. However, existing self-detection approaches…

计算与语言 · 计算机科学 2024-09-30 Moxin Li , Wenjie Wang , Fuli Feng , Fengbin Zhu , Qifan Wang , Tat-Seng Chua