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Recent methodologies utilizing synthetic datasets have aimed to address inconsistent hallucinations in large language models (LLMs); however,these approaches are primarily tailored to specific tasks, limiting their generalizability.…

Artificial Intelligence · Computer Science 2025-02-28 Xinxin You , Xien Liu , Qixin Sun , Huan Zhang , Kaiyin Zhou , Shaohui Liu , GuoPing Hu , ShiJin Wang , Si Liu , Ji Wu

Optimal control of stochastic nonlinear dynamical systems is a major challenge in the domain of robot learning. Given the intractability of the global control problem, state-of-the-art algorithms focus on approximate sequential optimization…

Machine Learning · Computer Science 2020-04-23 Joe Watson , Hany Abdulsamad , Jan Peters

Driven by the rapid advancements of Large Language Models (LLMs), LLM-based agents have emerged as powerful intelligent systems capable of human-like cognition, reasoning, and interaction. These agents are increasingly being deployed across…

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

Hallucination, the generation of factually incorrect information, remains a significant challenge for large language models (LLMs), especially in open-domain long-form generation. Existing approaches for detecting hallucination in long-form…

Prior works have shown that fine-tuning on new knowledge can induce factual hallucinations in large language models (LLMs), leading to incorrect outputs when evaluated on previously known information. However, the specific manifestations of…

Computation and Language · Computer Science 2026-04-20 Renfei Dang , Peng Hu , Zhejian Lai , Changjiang Gao , Min Zhang , Shujian Huang

Recent deep generative models are able to provide photo-realistic images as well as visual or textual content embeddings useful to address various tasks of computer vision and natural language processing. Their usefulness is nevertheless…

Machine Learning · Computer Science 2020-01-29 Antoine Plumerault , Hervé Le Borgne , Céline Hudelot

Vision-language models (VLMs) have achieved remarkable advancements, capitalizing on the impressive capabilities of large language models (LLMs) across diverse tasks. Despite this, a critical challenge known as hallucination occurs when…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Chao Wang , Weiwei Fu , Yang Zhou

Autonomous systems are soon to be ubiquitous, spanning manufacturing, agriculture, healthcare, entertainment, and other industries. Most of these systems are developed with modular sub-components for decision-making, planning, and control…

Artificial Intelligence · Computer Science 2025-02-12 Neeloy Chakraborty , Melkior Ornik , Katherine Driggs-Campbell

Despite the impressive capabilities of multimodal large language models (MLLMs) in vision-language tasks, they are prone to hallucinations in real-world scenarios. This paper investigates the hallucination phenomenon in MLLMs from the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Zongmeng Zhang , Wengang Zhou , Jie Zhao , Houqiang Li

Large language models (LLMs) possess extensive world knowledge, including geospatial knowledge, which has been successfully applied to various geospatial tasks such as mobility prediction and social indicator prediction. However, LLMs often…

Computation and Language · Computer Science 2025-07-29 Shengyuan Wang , Jie Feng , Tianhui Liu , Dan Pei , Yong Li

Many complex problems encountered in both production and daily life can be conceptualized as combinatorial optimization problems (COPs) over graphs. Recent years, reinforcement learning (RL) based models have emerged as a promising…

Machine Learning · Computer Science 2024-04-09 Tianle Pu , Changjun Fan , Mutian Shen , Yizhou Lu , Li Zeng , Zohar Nussinov , Chao Chen , Zhong Liu

Hallucination is a major concern in LLM-driven service systems, necessitating explicit knowledge grounding for compliance-guaranteed responses. In this paper, we introduce Retrieval-Augmented Learning-to-Match (RAL2M), a novel framework…

Computation and Language · Computer Science 2026-01-07 Mengze Hong , Di Jiang , Jiangtao Wen , Zhiyang Su , Yawen Li , Yanjie Sun , Guan Wang , Chen Jason Zhang

Large language models (LLMs) have demonstrated remarkable performance on various natural language processing tasks. However, they are prone to generating fluent yet untruthful responses, known as "hallucinations". Hallucinations can lead to…

Computation and Language · Computer Science 2024-06-18 Minda Hu , Bowei He , Yufei Wang , Liangyou Li , Chen Ma , Irwin King

World models learn the consequences of actions in vision-based interactive systems. However, in practical scenarios like autonomous driving, noncontrollable dynamics that are independent or sparsely dependent on action signals often exist,…

Machine Learning · Computer Science 2023-11-20 Minting Pan , Xiangming Zhu , Yitao Zheng , Yunbo Wang , Xiaokang Yang

Recent language models generate false but plausible-sounding text with surprising frequency. Such "hallucinations" are an obstacle to the usability of language-based AI systems and can harm people who rely upon their outputs. This work…

Computation and Language · Computer Science 2024-03-21 Adam Tauman Kalai , Santosh S. Vempala

Generative Adversarial Networks (GANs) are a class of generative models used for various applications, but they have been known to suffer from the mode collapse problem, in which some modes of the target distribution are ignored by the…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Karttikeya Mangalam , Rohin Garg

Despite the rapid success of Large Vision-Language Models (LVLMs), a persistent challenge is their tendency to generate hallucinated content, undermining reliability in real-world use. Existing training-free methods address hallucinations…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Neeraj Anand , Samyak Jha , Udbhav Bamba , Rahul Rahaman

We proposed an end-to-end system design towards utilizing Retrieval Augmented Generation (RAG) to improve the factual accuracy of Large Language Models (LLMs) for domain-specific and time-sensitive queries related to private…

Computation and Language · Computer Science 2024-03-18 Jiarui Li , Ye Yuan , Zehua Zhang

When an agent cannot represent a perfectly accurate model of its environment's dynamics, model-based reinforcement learning (MBRL) can fail catastrophically. Planning involves composing the predictions of the model; when flawed predictions…

Machine Learning · Computer Science 2017-07-28 Erik Talvitie