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Large Language Models (LLMs) have shown impressive performance across various domains, but their ability to perform molecular reasoning remains underexplored. Existing methods mostly rely on general-purpose prompting, which lacks…

Hallucinations in large language models (LLMs), defined as fluent yet incorrect or incoherent outputs, pose a significant challenge to the automatic generation of educational multiple-choice questions (MCQs). We identified four key…

Computation and Language · Computer Science 2026-01-22 Nicholas X. Wang , Aggelos K. Katsaggelos

Multimodal large language models (MLLMs) have achieved strong performance on vision-language tasks but still struggle with fine-grained visual differences, leading to hallucinations or missed semantic shifts. We attribute this to…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Tianyi Bai , Yuxuan Fan , Jiantao Qiu , Fupeng Sun , Jiayi Song , Junlin Han , Zichen Liu , Conghui He , Wentao Zhang , Binhang Yuan

Large language models (LLMs) have shown remarkable performance on many tasks in different domains. However, their performance in closed-book biomedical machine reading comprehension (MRC) has not been evaluated in depth. In this work, we…

Computation and Language · Computer Science 2024-10-28 Shubham Vatsal , Ayush Singh

While retrieval-augmented generation (RAG) has been shown to enhance factuality of large language model (LLM) outputs, LLMs still suffer from hallucination, generating incorrect or irrelevant information. A common detection strategy…

Computation and Language · Computer Science 2025-03-17 Tobias Leemann , Periklis Petridis , Giuseppe Vietri , Dionysis Manousakas , Aaron Roth , Sergul Aydore

Vision-Language Models (VLMs) excel at visual understanding but often suffer from visual hallucinations, where they generate descriptions of nonexistent objects, actions, or concepts, posing significant risks in safety-critical…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Tsung-Han Wu , Heekyung Lee , Jiaxin Ge , Joseph E. Gonzalez , Trevor Darrell , David M. Chan

Large language models (LLMs) have shown substantial capacity for generating fluent, contextually appropriate responses. However, they can produce hallucinated outputs, especially when a user query includes one or more false premises-claims…

Computation and Language · Computer Science 2026-02-18 Yuehan Qin , Shawn Li , Yi Nian , Xinyan Velocity Yu , Yue Zhao , Xuezhe Ma

Adverse Outcome Pathways (AOPs) are an important knowledge framework in toxicological research and risk assessment. In recent years, large language models (LLMs) have gradually been applied to AOP-related question answering and mechanistic…

Computation and Language · Computer Science 2026-04-14 Qinjiang Niu , Lu Yan

Large language models (LLMs) have revolutionized natural language processing, yet hallucinations in knowledge-intensive tasks remain a critical challenge. Retrieval-augmented generation (RAG) addresses this by integrating external…

Computation and Language · Computer Science 2026-02-17 Zhipeng Song , Xiangyu Kong , Xinrui Bao , Yizhi Zhou , Jiulong Jiao , Sitong Liu , Yuhang Zhou , Heng Qi

Graph-based Retrieval-Augmented Generation (GraphRAG) enhances Large Language Models (LLMs) by incorporating external knowledge from linearized subgraphs retrieved from knowledge graphs. However, LLMs struggle to interpret the relational…

Computation and Language · Computer Science 2025-12-11 Shanghao Li , Jinda Han , Yibo Wang , Yuanjie Zhu , Zihe Song , Langzhou He , Kenan Kamel A Alghythee , Philip S. Yu

Large Language Models are prompting us to view more NLP tasks from a generative perspective. At the same time, they offer a new way of accessing information, mainly through the RAG framework. While there have been notable improvements for…

Computation and Language · Computer Science 2025-03-21 Alex-Razvan Ispas , Charles-Elie Simon , Fabien Caspani , Vincent Guigue

Large language models (LLMs) continue to hallucinate in retrieval-augmented generation (RAG), producing claims that are unsupported by or conflict with the retrieved context. Detecting such errors remains challenging when faithfulness is…

Computation and Language · Computer Science 2026-03-31 Boxi Yu , Yuzhong Zhang , Liting Lin , Lionel Briand , Emir Muñoz

This project develops a self correcting framework for large language models (LLMs) that detects and mitigates hallucinations during multi-step reasoning. Rather than relying solely on final answer correctness, our approach leverages fine…

Artificial Intelligence · Computer Science 2025-11-21 Chelsea Zou , Yiheng Yao , Basant Khalil

Hallucinations in large language models (LLMs) produce fluent continuations that are not supported by the prompt, especially under minimal contextual cues and ambiguity. We introduce Distributional Semantics Tracing (DST), a model-native…

Computation and Language · Computer Science 2026-03-17 Gagan Bhatia , Somayajulu G Sripada , Kevin Allan , Jacobo Azcona

The lack of domain-specific data in the pre-training of Large Language Models (LLMs) severely limits LLM-based decision systems in specialized applications, while post-training a model in the scenarios requires significant computational…

Artificial Intelligence · Computer Science 2025-05-05 Zongyuan Li , Pengfei Li , Runnan Qi , Yanan Ni , Lumin Jiang , Hui Wu , Xuebo Zhang , Kuihua Huang , Xian Guo

Knowledge-based Visual Question Answering (KB-VQA) requires VQA systems to utilize knowledge from external knowledge bases to answer visually-grounded questions. Retrieval-Augmented Visual Question Answering (RA-VQA), a strong framework to…

Computation and Language · Computer Science 2023-10-31 Weizhe Lin , Jinghong Chen , Jingbiao Mei , Alexandru Coca , Bill Byrne

The emergence of large language models (LLMs) is a milestone in generative artificial intelligence, achieving significant success in text comprehension and generation tasks. Despite the tremendous success of LLMs in many downstream tasks,…

Computation and Language · Computer Science 2024-07-16 He Li , Haoang Chi , Mingyu Liu , Wenjing Yang

The integration of Large Language Models (LLMs) into the public health policy sector offers a transformative approach to navigating the vast repositories of regulatory guidance maintained by agencies such as the Centers for Disease Control…

Computation and Language · Computer Science 2026-01-23 Anuj Maharjan , Umesh Yadav

Despite the potential of Large Language Models (LLMs) in medicine, they may generate responses lacking supporting evidence or based on hallucinated evidence. While Retrieval Augment Generation (RAG) is popular to address this issue, few…

Large language models (LLMs) have demonstrated immense capabilities in understanding textual data and are increasingly being adopted to help researchers accelerate scientific discovery through knowledge extraction (information retrieval),…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Robinson Umeike , Neil Getty , Fangfang Xia , Rick Stevens