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Retrieving visual and textual information from medical literature and hospital records can enhance diagnostic accuracy for clinical image interpretation. However, multimodal retrieval-augmented diagnosis is highly challenging. We explore a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Nir Mazor , Tom Hope

Despite significant advancements in Large Vision-Language Models (LVLMs)' capabilities, existing pixel-grounding models operate in single-image settings, limiting their ability to perform detailed, fine-grained comparisons across multiple…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Muntasir Wahed , Kiet A. Nguyen , Adheesh Sunil Juvekar , Xinzhuo Li , Xiaona Zhou , Vedant Shah , Tianjiao Yu , Pinar Yanardag , Ismini Lourentzou

Large Language Models (LLMs) suffer from hallucinations and outdated knowledge due to their reliance on static training data. Retrieval-Augmented Generation (RAG) mitigates these issues by integrating external dynamic information for…

Vision-Language Models (VLMs) excel at visual reasoning but still struggle with integrating external knowledge. Retrieval-Augmented Generation (RAG) is a promising solution, but current methods remain inefficient and often fail to maintain…

Computer Vision and Pattern Recognition · Computer Science 2026-01-08 Gen Li , Peiyu Liu

Retrieval-Augmented Generation (RAG) has emerged as a powerful paradigm for enhancing large language models (LLMs) by retrieving relevant documents from an external corpus. However, existing RAG systems primarily focus on unimodal text…

Computation and Language · Computer Science 2025-10-21 Chenghao Zhang , Guanting Dong , Xinyu Yang , Zhicheng Dou

Visual Question Answering systems face reliability issues due to hallucinations, where models generate answers misaligned with visual input or factual knowledge. While Retrieval Augmented Generation frameworks mitigate this issue by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Ruoshuang Du , Xin Sun , Qiang Liu , Bowen Song , Zhongqi Chen , Weiqiang Wang , Liang Wang

Retrieval-Augmented Generation (RAG) encounters efficiency challenges when scaling to massive knowledge bases while preserving contextual relevance. We propose Hash-RAG, a framework that integrates deep hashing techniques with systematic…

Information Retrieval · Computer Science 2025-06-04 Jinyu Guo , Xunlei Chen , Qiyang Xia , Zhaokun Wang , Jie Ou , Libo Qin , Shunyu Yao , Wenhong Tian

High-resolution (HR) image perception presents a key bottleneck for multimodal large language models (MLLMs). While visual search offers a promising solution, existing methods struggle with the trade-off between coverage and efficiency.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Liupeng Li , Haoqian Kang , Zhenyu Lu , Jinpeng Wang , Bin Chen , Ke Chen , Yaowei Wang

Multimodal large language models (MLLMs) have achieved remarkable success across a broad range of vision tasks. However, constrained by the capacity of their internal world knowledge, prior work has proposed augmenting MLLMs by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Wenxuan Huang , Yu Zeng , Qiuchen Wang , Zhen Fang , Shaosheng Cao , Zheng Chu , Qingyu Yin , Shuang Chen , Zhenfei Yin , Lin Chen , Zehui Chen , Xu Tang , Yao Hu , Shaohui Lin , Philip Torr , Feng Zhao , Wanli Ouyang

Large Language Models (LLMs) demonstrate strong reasoning abilities but face limitations such as hallucinations and outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) addresses these issues by grounding LLM…

Computation and Language · Computer Science 2025-03-04 Mufei Li , Siqi Miao , Pan Li

Multimodal Retrieval-Augmented Generation (RAG) has emerged as an effective paradigm for enhancing Large Language Models (LLMs) with external knowledge. However, existing multimodal RAG systems predominantly rely on coarse-grained…

Information Retrieval · Computer Science 2026-05-25 Yifan Zhu , Yu Mi , Yue Lu , Yanchu Guan , Zhixuan Chu

Multimodal Retrieval Augmented Generation (mRAG) plays an important role in mitigating the "hallucination" issue inherent in multimodal large language models (MLLMs). Although promising, existing heuristic mRAGs typically predefined fixed…

Computation and Language · Computer Science 2025-05-27 Yangning Li , Yinghui Li , Xinyu Wang , Yong Jiang , Zhen Zhang , Xinran Zheng , Hui Wang , Hai-Tao Zheng , Philip S. Yu , Fei Huang , Jingren Zhou

Advanced Multimodal Large Language Models (MLLMs) struggle with recent Knowledge-based VQA tasks, such as INFOSEEK and Encyclopedic-VQA, due to their limited and frozen knowledge scope, often leading to ambiguous and inaccurate responses.…

Artificial Intelligence · Computer Science 2024-11-25 Tao Zhang , Ziqi Zhang , Zongyang Ma , Yuxin Chen , Zhongang Qi , Chunfeng Yuan , Bing Li , Junfu Pu , Yuxuan Zhao , Zehua Xie , Jin Ma , Ying Shan , Weiming Hu

Retrieval-Augmented Generation (RAG) offers a cost-effective approach to injecting real-time knowledge into large language models (LLMs). Nevertheless, constructing and validating high-quality knowledge repositories require considerable…

Computation and Language · Computer Science 2024-05-28 Xun Liang , Simin Niu , Zhiyu li , Sensen Zhang , Shichao Song , Hanyu Wang , Jiawei Yang , Feiyu Xiong , Bo Tang , Chenyang Xi

Large multimodal models (LMMs) have achieved high performance in vision-language tasks involving single image but they struggle when presented with a collection of multiple images (Multiple Image Question Answering scenario). These tasks,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Aaryan Sharma , Shivansh Gupta , Samar Agarwal , Vishak Prasad C. , Ganesh Ramakrishnan

Large Language Models (LLMs) exhibit remarkable capabilities but are prone to generating inaccurate or hallucinatory responses. This limitation stems from their reliance on vast pretraining datasets, making them susceptible to errors in…

Computation and Language · Computer Science 2024-04-02 Chi-Min Chan , Chunpu Xu , Ruibin Yuan , Hongyin Luo , Wei Xue , Yike Guo , Jie Fu

In this paper, we propose an end-to-end Retrieval-Augmented Visual Language Model (REVEAL) that learns to encode world knowledge into a large-scale memory, and to retrieve from it to answer knowledge-intensive queries. REVEAL consists of…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Ziniu Hu , Ahmet Iscen , Chen Sun , Zirui Wang , Kai-Wei Chang , Yizhou Sun , Cordelia Schmid , David A. Ross , Alireza Fathi

Large multimodal models (LMMs) have achieved impressive progress in vision-language understanding, yet they face limitations in real-world applications requiring complex reasoning over a large number of images. Existing benchmarks for…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Jun Chen , Dannong Xu , Junjie Fei , Chun-Mei Feng , Mohamed Elhoseiny

Medical question-answering (QA) systems can benefit from advances in large language models (LLMs), but directly applying LLMs to the clinical domain poses challenges such as maintaining factual accuracy and avoiding hallucinations. In this…

Computation and Language · Computer Science 2025-12-08 Tasnimul Hassan , Md Faisal Karim , Haziq Jeelani , Elham Behnam , Robert Green , Fayeq Jeelani Syed

Retrieval-Augmented Generation (RAG) is a powerful strategy for improving the factual accuracy of models by retrieving external knowledge relevant to queries and incorporating it into the generation process. However, existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Soyeong Jeong , Kangsan Kim , Jinheon Baek , Sung Ju Hwang