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Visual Question-Answering (VQA) is a challenging multimodal task that requires integrating visual and textual information to generate accurate responses. While multimodal Retrieval-Augmented Generation (mRAG) has shown promise in enhancing…

Computation and Language · Computer Science 2026-01-29 Zhuo Chen , Xinyu Geng , Xinyu Wang , Yong Jiang , Zhen Zhang , Pengjun Xie , Kewei Tu

Retrieval-augmented Large Language Models (LLMs) have reshaped traditional query-answering systems, offering unparalleled user experiences. However, existing retrieval techniques often struggle to handle multi-modal query contexts. In this…

Databases · Computer Science 2024-07-08 Mengzhao Wang , Haotian Wu , Xiangyu Ke , Yunjun Gao , Xiaoliang Xu , Lu Chen

Large language models often encounter challenges with static knowledge and hallucinations, which undermine their reliability. Retrieval-augmented generation (RAG) mitigates these issues by incorporating external information. However, user…

Information Retrieval · Computer Science 2024-11-21 Zhicong Li , Jiahao Wang , Zhishu Jiang , Hangyu Mao , Zhongxia Chen , Jiazhen Du , Yuanxing Zhang , Fuzheng Zhang , Di Zhang , Yong Liu

Question-answering (QA) that comes naturally to humans is a critical component in seamless human-computer interaction. It has emerged as one of the most convenient and natural methods to interact with the web and is especially desirable in…

Computation and Language · Computer Science 2022-11-15 Deepak Gupta

Enterprise IT support interactions are fundamentally diagnostic: effective resolution requires iterative evidence gathering from ambiguous user reports to identify an underlying root cause. While retrieval-augmented generation (RAG)…

Medical Visual Question Answering (VQA) is a multi-modal challenging task widely considered by research communities of the computer vision and natural language processing. Since most current medical VQA models focus on visual content,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Haiwei Pan , Shuning He , Kejia Zhang , Bo Qu , Chunling Chen , Kun Shi

Video Question Answering (VQA) inherently relies on multimodal reasoning, integrating visual, temporal, and linguistic cues to achieve a deeper understanding of video content. However, many existing methods rely on feeding frame-level…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Noriyuki Kugo , Xiang Li , Zixin Li , Ashish Gupta , Arpandeep Khatua , Nidhish Jain , Chaitanya Patel , Yuta Kyuragi , Yasunori Ishii , Masamoto Tanabiki , Kazuki Kozuka , Ehsan Adeli

Document-based Visual Question Answering examines the document understanding of document images in conditions of natural language questions. We proposed a new document-based VQA dataset, PDF-VQA, to comprehensively examine the document…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Yihao Ding , Siwen Luo , Hyunsuk Chung , Soyeon Caren Han

Addressing non-factoid question answering (NFQA) remains challenging due to its open-ended nature, diverse user intents, and need for multi-aspect reasoning. These characteristics often reveal the limitations of conventional…

Computation and Language · Computer Science 2025-07-23 DongGeon Lee , Ahjeong Park , Hyeri Lee , Hyeonseo Nam , Yunho Maeng

Visual Question Answering (VQA) presents a unique challenge as it requires the ability to understand and encode the multi-modal inputs - in terms of image processing and natural language processing. The algorithm further needs to learn how…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Supriya Pandhre , Shagun Sodhani

Knowledge-based visual question answering (KB-VQA) requires vision-language models to understand images and use external knowledge, especially for rare entities and long-tail facts. Most existing retrieval-augmented generation (RAG) methods…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Zhuohong Chen , Zhenxian Wu , Yunyao Yu , Hangrui Xu , Zirui Liao , Zhifang Liu , Xiangwen Deng , Pen Jiao , Haoqian Wang

Visually-situated languages such as charts and plots are omnipresent in real-world documents. These graphical depictions are human-readable and are often analyzed in visually-rich documents to address a variety of questions that necessitate…

Artificial Intelligence · Computer Science 2023-10-31 Anran Wu , Luwei Xiao , Xingjiao Wu , Shuwen Yang , Junjie Xu , Zisong Zhuang , Nian Xie , Cheng Jin , Liang He

Understanding information from a collection of multiple documents, particularly those with visually rich elements, is important for document-grounded question answering. This paper introduces VisDoMBench, the first comprehensive benchmark…

Computation and Language · Computer Science 2025-02-12 Manan Suri , Puneet Mathur , Franck Dernoncourt , Kanika Goswami , Ryan A. Rossi , Dinesh Manocha

Multi-hop question answering (QA) necessitates multi-step reasoning and retrieval across interconnected subjects, attributes, and relations. Existing retrieval-augmented generation (RAG) methods struggle to capture these structural…

Computation and Language · Computer Science 2026-02-19 Jimeng Shi , Wei Hu , Runchu Tian , Bowen Jin , Wonbin Kweon , SeongKu Kang , Yunfan Kang , Dingqi Ye , Sizhe Zhou , Shaowen Wang , Jiawei Han

This paper introduces the task of analytical question answering over large, semi-structured document collections. We present MuDABench, a benchmark for multi-document analytical QA, where questions require extracting and synthesizing…

Computation and Language · Computer Science 2026-04-27 Zhanli Li , Yixuan Cao , Lvzhou Luo , Ping Luo

Financial documents--such as 10-Ks, 10-Qs, and investor presentations--span hundreds of pages and combine diverse modalities, including dense narrative text, structured tables, and complex figures. Answering questions over such content…

Computation and Language · Computer Science 2026-04-13 Chinmay Gondhalekar , Urjitkumar Patel , Fang-Chun Yeh

Visual contents, such as illustrations and images, play a big role in product manual understanding. Existing Product Manual Question Answering (PMQA) datasets tend to ignore visual contents and only retain textual parts. In this work, to…

Computation and Language · Computer Science 2023-04-20 Liang Zhang , Anwen Hu , Jing Zhang , Shuo Hu , Qin Jin

In recent years, multi-armed bandit (MAB) framework has attracted a lot of attention in various applications, from recommender systems and information retrieval to healthcare and finance, due to its stellar performance combined with certain…

Machine Learning · Computer Science 2019-04-24 Djallel Bouneffouf , Irina Rish

Open-domain question answering (QA) aims to find the answer to a question from a large collection of documents.Though many models for single-document machine comprehension have achieved strong performance, there is still much room for…

Computation and Language · Computer Science 2020-06-11 Mantong Zhou , Zhouxing Shi , Minlie Huang , Xiaoyan Zhu

Retrieval-Augmented Generation (RAG) systems for question answering typically retrieve evidence by semantic similarity between the query and document chunks. While effective for unstructured text, this approach is less reliable on…