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Acquiring high-quality knowledge is a central focus in Knowledge-Based Visual Question Answering (KB-VQA). Recent methods use large language models (LLMs) as knowledge engines for answering. These methods generally employ image captions as…

计算机视觉与模式识别 · 计算机科学 2025-09-26 Yan Zhang , Jiaqing Lin , Miao Zhang , Kui Xiao , Xiaoju Hou , Yue Zhao , Zhifei Li

Large vision and language models show strong performance in tasks like image captioning, visual question answering, and retrieval. However, challenges remain in integrating speech, text, and vision into a unified model, especially for…

多媒体 · 计算机科学 2025-07-08 Ngoc Dung Huynh , Mohamed Reda Bouadjenek , Imran Razzak , Hakim Hacid , Sunil Aryal

Textual descriptions for multimodal inputs entail recurrent refinement of queries to produce relevant output images. Despite efforts to address challenges such as scaling model size and data volume, the cost associated with pre-training and…

机器学习 · 计算机科学 2025-08-14 Amit Kumar Jaiswal , Haiming Liu , Ingo Frommholz

Traditional Retrieval-Augmented Generation (RAG) methods are limited by their reliance on a fixed number of retrieved documents, often resulting in incomplete or noisy information that undermines task performance. Although recent adaptive…

计算与语言 · 计算机科学 2024-10-16 Wenjia Zhai

Document understanding is critical for applications from financial analysis to scientific discovery. Current approaches, whether OCR-based pipelines feeding Large Language Models (LLMs) or native Multimodal LLMs (MLLMs), face key…

Retrieval-Augmented Generation (RAG) has gained significant attention in recent years for its potential to enhance natural language understanding and generation by combining large-scale retrieval systems with generative models. RAG…

计算与语言 · 计算机科学 2025-03-18 Mingyue Cheng , Yucong Luo , Jie Ouyang , Qi Liu , Huijie Liu , Li Li , Shuo Yu , Bohou Zhang , Jiawei Cao , Jie Ma , Daoyu Wang , Enhong Chen

Retrieval-Augmented Generation (RAG) has recently emerged as a promising solution to alleviate Large Language Model (LLM)'s deficiency in lack of knowledge. Existing RAG datasets, however, do not adequately represent the diverse and dynamic…

The multimodal task of Visual Question Answering (VQA) encompassing elements of Computer Vision (CV) and Natural Language Processing (NLP), aims to generate answers to questions on any visual input. Over time, the scope of VQA has expanded…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Md Farhan Ishmam , Md Sakib Hossain Shovon , M. F. Mridha , Nilanjan Dey

Retrieval-augmented generation (RAG) improves large language models (LLMs) by using external knowledge to guide response generation, reducing hallucinations. However, RAG, particularly multi-modal RAG, can introduce new hallucination…

机器学习 · 计算机科学 2025-01-08 Matin Mortaheb , Mohammad A. Amir Khojastepour , Srimat T. Chakradhar , Sennur Ulukus

Large language models (LLMs) frequently generate confident yet factually incorrect content when used for language generation (a phenomenon often known as hallucination). Retrieval augmented generation (RAG) tries to reduce factual errors by…

信息检索 · 计算机科学 2026-04-01 Dobrik Georgiev , Kheeran Naidu , Alberto Cattaneo , Federico Monti , Carlo Luschi , Daniel Justus

Vision-Language Models (VLMs) have been increasingly applied in real-world scenarios due to their outstanding understanding and reasoning capabilities. Although VLMs have already demonstrated impressive capabilities in common visual…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Yuechen Xie , Xiaoyan Zhang , Yicheng Shan , Hao Zhu , Rui Tang , Rong Wei , Mingli Song , Yuanyu Wan , Jie Song

Text-VQA aims at answering questions that require understanding the textual cues in an image. Despite the great progress of existing Text-VQA methods, their performance suffers from insufficient human-labeled question-answer (QA) pairs.…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Jun Wang , Mingfei Gao , Yuqian Hu , Ramprasaath R. Selvaraju , Chetan Ramaiah , Ran Xu , Joseph F. JaJa , Larry S. Davis

The visual world around us constantly evolves, from real-time news and social media trends to global infrastructure changes visible through satellite imagery and augmented reality enhancements. However, Multimodal Large Language Models…

计算机视觉与模式识别 · 计算机科学 2025-07-02 Mingyang Fu , Yuyang Peng , Dongping Chen , Zetong Zhou , Benlin Liu , Yao Wan , Zhou Zhao , Philip S. Yu , Ranjay Krishna

Large language models (LLMs) exhibit remarkable capabilities but often produce inaccurate responses, as they rely solely on their embedded knowledge. Retrieval-Augmented Generation (RAG) enhances LLMs by incorporating an external…

计算与语言 · 计算机科学 2024-09-25 Nitin Aravind Birur , Tanay Baswa , Divyanshu Kumar , Jatan Loya , Sahil Agarwal , Prashanth Harshangi

Virtual Assistants (VAs) are important Information Retrieval platforms that help users accomplish various tasks through spoken commands. The speech recognition system (speech-to-text) uses query priors, trained solely on text, to…

信息检索 · 计算机科学 2024-06-12 Sonal Sannigrahi , Thiago Fraga-Silva , Youssef Oualil , Christophe Van Gysel

For middle-school math students, interactive question-answering (QA) with tutors is an effective way to learn. The flexibility and emergent capabilities of generative large language models (LLMs) has led to a surge of interest in automating…

计算与语言 · 计算机科学 2023-11-14 Zachary Levonian , Chenglu Li , Wangda Zhu , Anoushka Gade , Owen Henkel , Millie-Ellen Postle , Wanli Xing

Medical vision-language models (VLMs) achieve strong performance in diagnostic reporting and image-text alignment, yet their underlying reasoning mechanisms remain fundamentally correlational, exhibiting reliance on superficial statistical…

机器学习 · 计算机科学 2026-01-27 Weiqin Yang , Haowen Xue , Qingyi Peng , Hexuan Hu , Qian Huang , Tingbo Zhang

Understanding and reasoning over long videos pose significant challenges for large video language models (LVLMs) due to the difficulty in processing intensive video tokens beyond context window and retaining long-term sequential…

计算机视觉与模式识别 · 计算机科学 2025-10-17 Xiaoqian Shen , Wenxuan Zhang , Jun Chen , Mohamed Elhoseiny

As one of the most advanced techniques in AI, Retrieval-Augmented Generation (RAG) can offer reliable and up-to-date external knowledge, providing huge convenience for numerous tasks. Particularly in the era of AI-Generated Content (AIGC),…

计算与语言 · 计算机科学 2024-06-18 Wenqi Fan , Yujuan Ding , Liangbo Ning , Shijie Wang , Hengyun Li , Dawei Yin , Tat-Seng Chua , Qing Li

Retrieval-Augmented Generation (RAG) systems often struggle to handle multi-hop question-answering tasks accurately due to irrelevant context retrieval and limited complex reasoning capabilities. We introduce Collab-RAG, a collaborative…

计算与语言 · 计算机科学 2025-04-08 Ran Xu , Wenqi Shi , Yuchen Zhuang , Yue Yu , Joyce C. Ho , Haoyu Wang , Carl Yang