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Document parsing from scanned images into structured formats remains a significant challenge due to its complexly intertwined elements such as text paragraphs, figures, formulas, and tables. Existing supervised fine-tuning methods often…

Computation and Language · Computer Science 2025-10-21 Baode Wang , Biao Wu , Weizhen Li , Meng Fang , Zuming Huang , Jun Huang , Haozhe Wang , Yanjie Liang , Ling Chen , Wei Chu , Yuan Qi

Interacting and understanding with text heavy visual content with multiple images is a major challenge for traditional vision models. This paper is on enhancing vision models' capability to comprehend or understand and learn from images…

Computer Vision and Pattern Recognition · Computer Science 2024-08-31 Adithya TG , Adithya SK , Abhinav R Bharadwaj , Abhiram HA , Surabhi Narayan

Recently, automatically extracting information from visually rich documents (e.g., tickets and resumes) has become a hot and vital research topic due to its widespread commercial value. Most existing methods divide this task into two…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Zhanzhan Cheng , Peng Zhang , Can Li , Qiao Liang , Yunlu Xu , Pengfei Li , Shiliang Pu , Yi Niu , Fei Wu

Retrieval-Augmented Generation (RAG) has emerged as a powerful paradigm for enhancing the capabilities of large language models. However, existing RAG evaluation predominantly focuses on text retrieval and relies on opaque, end-to-end…

Information Retrieval · Computer Science 2025-05-19 Chuan Xu , Qiaosheng Chen , Yutong Feng , Gong Cheng

Retrieval-augmented generation (RAG) enables large language models (LLMs) to dynamically access external information, which is powerful for answering questions over previously unseen documents. Nonetheless, they struggle with high-level…

Artificial Intelligence · Computer Science 2026-04-21 Chi-Hsiang Hsiao , Yi-Cheng Wang , Tzung-Sheng Lin , Yi-Ren Yeh , Chu-Song Chen

Multimodal documents contain diverse elements, such as tables, figures, and layouts, which can complicate retrieval tasks. While current approaches typically combine dense visual embedding models with supervised rerankers to achieve…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Ruofan Hu , Menghui Zhu , Jieming Zhu , Bo Chen , Shengyang Xu , Minjie Hong , Xiaoda Yang , Sashuai Zhou , Li Tang , Tao Jin , Zhou Zhao

Multi-page Document Visual Question Answering requires reasoning over semantics, layouts, and visual elements in long, visually dense documents. Existing OCR-free methods face a trade-off between capacity and precision: end-to-end models…

Computation and Language · Computer Science 2026-04-16 Yuanlei Zheng , Pei Fu , Hang Li , Ziyang Wang , Yuyi Zhang , Wenyu Ruan , Xiaojin Zhang , Zhongyu Wei , Zhenbo Luo , Jian Luan , Wei Chen , Xiang Bai

Visual quality assessment (VQA) is increasingly shifting from scalar score prediction toward interpretable quality understanding -- a paradigm that demands \textit{fine-grained spatiotemporal perception} and \textit{auxiliary contextual…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Linhan Cao , Wei Sun , Weixia Zhang , Xiangyang Zhu , Kaiwei Zhang , Jun Jia , Dandan Zhu , Guangtao Zhai , Xiongkuo Min

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

Existing large video-language models (LVLMs) struggle to comprehend long videos correctly due to limited context. To address this problem, fine-tuning long-context LVLMs and employing GPT-based agents have emerged as promising solutions.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Yongdong Luo , Xiawu Zheng , Guilin Li , Shukang Yin , Haojia Lin , Chaoyou Fu , Jinfa Huang , Jiayi Ji , Fei Chao , Jiebo Luo , Rongrong Ji

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

With the rapid development of Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) has become a predominant method in the field of professional knowledge-based question answering. Presently, major foundation model companies…

Artificial Intelligence · Computer Science 2024-01-24 Demiao Lin

Retrieval-augmented generation (RAG) is an effective technique that enables large language models (LLMs) to utilize external knowledge sources for generation. However, current RAG systems are solely based on text, rendering it impossible to…

Information Retrieval · Computer Science 2025-03-04 Shi Yu , Chaoyue Tang , Bokai Xu , Junbo Cui , Junhao Ran , Yukun Yan , Zhenghao Liu , Shuo Wang , Xu Han , Zhiyuan Liu , Maosong Sun

Retrieval-Augmented Generation (RAG) has become a popular technique for enhancing the reliability and utility of Large Language Models (LLMs) by grounding responses in external documents. Traditional RAG systems rely on Optical Character…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Alexander Most , Joseph Winjum , Ayan Biswas , Shawn Jones , Nishath Rajiv Ranasinghe , Dan O'Malley , Manish Bhattarai

Understanding visual art requires reasoning across multiple perspectives -- cultural, historical, and stylistic -- beyond mere object recognition. While recent multimodal large language models (MLLMs) perform well on general image…

Artificial Intelligence · Computer Science 2025-09-08 Shuai Wang , Ivona Najdenkoska , Hongyi Zhu , Stevan Rudinac , Monika Kackovic , Nachoem Wijnberg , Marcel Worring

Retrieval-Augmented Generation (RAG) pipelines must address challenges beyond simple single-document retrieval, such as interpreting visual elements (tables, charts, images), synthesizing information across documents, and providing accurate…

Artificial Intelligence · Computer Science 2026-04-22 António Loison , Quentin Macé , Antoine Edy , Victor Xing , Tom Balough , Gabriel Moreira , Bo Liu , Manuel Faysse , Céline Hudelot , Gautier Viaud

Systems such as video chatbots and navigation robots often depend on streaming image captioning to interpret visual inputs. Existing approaches typically employ large multimodal language models (MLLMs) for this purpose, but their…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Junha Song , Yongsik Jo , So Yeon Min , Quanting Xie , Taehwan Kim , Yonatan Bisk , Jaegul Choo

Layout is a fundamental component of any graphic design. Creating large varieties of plausible document layouts can be a tedious task, requiring numerous constraints to be satisfied, including local ones relating different semantic elements…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Akshay Gadi Patil , Omri Ben-Eliezer , Or Perel , Hadar Averbuch-Elor

Retrieval-augmented generation (RAG) is increasingly deployed in enterprise search and document-centric assistants, where responses must be grounded in long and complex source materials. In practice, verifying that generated answers…

Computation and Language · Computer Science 2026-03-26 Xunzhuo Liu , Bowei He , Xue Liu , Haichen Zhang , Huamin Chen

Document Visual Question Answering (DocVQA) is a practical yet challenging task, which is to ask questions based on documents while referring to multiple pages and different modalities of information, e.g, images and tables. To handle…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Chelsi Jain , Yiran Wu , Yifan Zeng , Jiale Liu , S hengyu Dai , Zhenwen Shao , Qingyun Wu , Huazheng Wang