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Large language models (LLMs), while exhibiting exceptional performance, suffer from hallucinations, especially on knowledge-intensive tasks. Existing works propose to augment LLMs with individual text units retrieved from external knowledge…

计算与语言 · 计算机科学 2024-10-04 Bowen Jin , Chulin Xie , Jiawei Zhang , Kashob Kumar Roy , Yu Zhang , Zheng Li , Ruirui Li , Xianfeng Tang , Suhang Wang , Yu Meng , Jiawei Han

This paper introduces KnowHalu, a novel approach for detecting hallucinations in text generated by large language models (LLMs), utilizing step-wise reasoning, multi-formulation query, multi-form knowledge for factual checking, and…

计算与语言 · 计算机科学 2024-04-05 Jiawei Zhang , Chejian Xu , Yu Gai , Freddy Lecue , Dawn Song , Bo Li

Retrieval-Augmented Language Models (RALMs) have significantly improved performance in open-domain question answering (QA) by leveraging external knowledge. However, RALMs still struggle with unanswerable queries, where the retrieved…

计算与语言 · 计算机科学 2024-08-09 Seong-Il Park , Seung-Woo Choi , Na-Hyun Kim , Jay-Yoon Lee

Scaling inference compute enhances reasoning in large language models (LLMs), with long chains-of-thought (CoTs) enabling strategies like backtracking and error correction. Reinforcement learning (RL) has emerged as a crucial method for…

计算与语言 · 计算机科学 2025-02-06 Edward Yeo , Yuxuan Tong , Morry Niu , Graham Neubig , Xiang Yue

Large language models (LLMs) are prone to three types of hallucination: Input-Conflicting, Context-Conflicting and Fact-Conflicting hallucinations. The purpose of this study is to mitigate the different types of hallucination by exploiting…

人工智能 · 计算机科学 2025-06-17 Ao Jia , Haiming Wu , Guohui Yao , Dawei Song , Songkun Ji , Yazhou Zhang

Multimodal large language models (MLLMs) have revolutionized the landscape of AI, demonstrating impressive capabilities in tackling complex vision and audio-language tasks. However, a critical challenge remains: these models often suffer…

机器学习 · 计算机科学 2026-05-05 Itai Allouche , Joseph Keshet

Large language models (LLMs) inherently display hallucinations since the precision of generated texts cannot be guaranteed purely by the parametric knowledge they include. Although retrieval-augmented generation (RAG) systems enhance the…

人工智能 · 计算机科学 2025-02-18 Bingyu Wan , Fuxi Zhang , Zhongpeng Qi , Jiayi Ding , Jijun Li , Baoshi Fan , Yijia Zhang , Jun Zhang

Generating intermediate steps, or Chain of Thought (CoT), is an effective way to significantly improve language models' (LM) multi-step reasoning capability. However, the CoT lengths can grow rapidly with the problem complexity, easily…

计算与语言 · 计算机科学 2023-06-13 Soochan Lee , Gunhee Kim

Large language models (LLMs) have recently been applied to dialog systems. Despite making progress, LLMs are prone to errors in knowledge-intensive scenarios. Recently, approaches based on retrieval augmented generation (RAG) and agent have…

计算与语言 · 计算机科学 2025-07-01 Yucheng Cai , Yuxuan Wu , Yi Huang , Junlan Feng , Zhijian Ou

Despite significant advances in Vision Language Models (VLMs), they remain constrained by the complexity and redundancy of visual input. When images contain large amounts of irrelevant information, VLMs are susceptible to interference, thus…

计算机视觉与模式识别 · 计算机科学 2025-10-02 Xinyu Zhang , Yuxuan Dong , Lingling Zhang , Chengyou Jia , Zhuohang Dang , Basura Fernando , Jun Liu , Mike Zheng Shou

Although large vision-language models (LVLMs) have demonstrated remarkable capabilities, they are prone to hallucinations in multi-image tasks. We attribute this issue to limitations in existing attention mechanisms and insufficient…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Xiaochen Yang , Hao Fang , Jiawei Kong , Yaoxin Mao , Bin Chen , Shu-Tao Xia

Large vision-language models (VLMs) fine-tuned on specialized visual instruction-following data have exhibited impressive language reasoning capabilities across various scenarios. However, this fine-tuning paradigm may not be able to…

人工智能 · 计算机科学 2024-10-10 Yuexiang Zhai , Hao Bai , Zipeng Lin , Jiayi Pan , Shengbang Tong , Yifei Zhou , Alane Suhr , Saining Xie , Yann LeCun , Yi Ma , Sergey Levine

The localization of code hallucinations aims to identify specific lines of code containing hallucinations, helping developers to improve the reliability of AI-generated code more efficiently. Although recent studies have adopted several…

软件工程 · 计算机科学 2026-01-01 Nan Jia , Wangchao Sang , Pengfei Lin , Xiangping Chen , Yuan Huang , Yi Liu , Mingliang Li

The development of Long-Context Large Language Models (LLMs) has markedly advanced natural language processing by facilitating the process of textual data across long documents and multiple corpora. However, Long-Context LLMs still face two…

计算与语言 · 计算机科学 2024-10-10 Jingyang Deng , Zhengyang Shen , Boyang Wang , Lixin Su , Suqi Cheng , Ying Nie , Junfeng Wang , Dawei Yin , Jinwen Ma

Recently evolved large reasoning models (LRMs) show powerful performance in solving complex tasks with long chain-of-thought (CoT) reasoning capability. As these LRMs are mostly developed by post-training on formal reasoning tasks, whether…

计算与语言 · 计算机科学 2025-05-30 Zijun Yao , Yantao Liu , Yanxu Chen , Jianhui Chen , Junfeng Fang , Lei Hou , Juanzi Li , Tat-Seng Chua

Vision-Language Models (VLMs) struggle with complex image annotation tasks, such as emotion classification and context-driven object detection, which demand sophisticated reasoning. Standard Supervised Fine-Tuning (SFT) focuses solely on…

机器学习 · 计算机科学 2025-09-16 Suhang Hu , Wei Hu , Yuhang Su , Fan Zhang

Large Language Models (LLMs) have demonstrated impressive performance in natural language processing tasks by leveraging chain of thought (CoT) that enables step-by-step thinking. Extending LLMs with multimodal capabilities is the recent…

计算与语言 · 计算机科学 2024-01-24 Debjyoti Mondal , Suraj Modi , Subhadarshi Panda , Rituraj Singh , Godawari Sudhakar Rao

Large Language Models (LLMs) demonstrate significant capabilities in processing natural language data, promising efficient knowledge extraction from diverse textual sources to enhance situational awareness and support decision-making.…

计算与语言 · 计算机科学 2024-06-04 Fatemeh Shiri , Van Nguyen , Farhad Moghimifar , John Yoo , Gholamreza Haffari , Yuan-Fang Li

Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) systems are increasingly deployed in industry applications, yet their reliability remains hampered by challenges in detecting hallucinations. While supervised…

计算与语言 · 计算机科学 2025-05-30 Julia Belikova , Konstantin Polev , Rauf Parchiev , Dmitry Simakov

Large Language Models (LLMs) are trained on vast and diverse internet corpora that often include inaccurate or misleading content. Consequently, LLMs can generate misinformation, making robust fact-checking essential. This review…