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Related papers: SIMPLOT: Enhancing Chart Question Answering by Dis…

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Large language models (LLMs) have shown promise in table Question Answering (Table QA). However, extending these capabilities to multi-table QA remains challenging due to unreliable schema linking across complex tables. Existing methods…

Artificial Intelligence · Computer Science 2025-11-25 Xixi Wang , Miguel Costa , Jordanka Kovaceva , Shuai Wang , Francisco C. Pereira

Charts are high-density visualization carriers for complex data, serving as a crucial medium for information extraction and analysis. Automated chart understanding poses significant challenges to existing multimodal large language models…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Muye Huang , Lingling Zhang , Jie Ma , Han Lai , Fangzhi Xu , Yifei Li , Wenjun Wu , Yaqiang Wu , Jun Liu

Chart understanding is crucial for deploying multimodal large language models (MLLMs) in real-world scenarios such as analyzing scientific papers and technical reports. Unlike natural images, charts pair a structured visual layout (spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Zhuoming Liu , Xiaofeng Gao , Feiyang Niu , Qiaozi Gao , Liu Liu , Robinson Piramuthu

Obtaining a single-vector representation from a Large Language Model's (LLM) token-level outputs is a critical step for nearly all sentence-level tasks. However, standard pooling methods like mean or max aggregation treat tokens as an…

Machine Learning · Computer Science 2026-03-05 Krishna Sri Ipsit Mantri , Carola-Bibiane Schönlieb , Zorah Lähner , Moshe Eliasof

Recent studies customizing Multimodal Large Language Models (MLLMs) for domain-specific tasks have yielded promising results, especially in the field of scientific chart comprehension. These studies generally utilize visual instruction…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Wan-Cyuan Fan , Yen-Chun Chen , Mengchen Liu , Lu Yuan , Leonid Sigal

We present a comprehensive study of chart visual question-answering(QA) task, to address the challenges faced in comprehending and extracting data from chart visualizations within documents. Despite efforts to tackle this problem using…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Saleem Ahmed , Bhavin Jawade , Shubham Pandey , Srirangaraj Setlur , Venu Govindaraju

Chart Question Answering (CQA) aims at answering questions based on the visual chart content, which plays an important role in chart sumarization, business data analysis, and data report generation. CQA is a challenging multi-modal task…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Lingling Zhang , Muye Huang , QianYing Wang , Yaxian Wang , Wenjun Wu , Jun Liu

Complex Table Question Answering involves providing accurate answers to specific questions based on intricate tables that exhibit complex layouts and flexible header locations. Despite considerable progress having been made in the LLM era,…

Computation and Language · Computer Science 2024-12-03 Qianlong Li , Chen Huang , Shuai Li , Yuanxin Xiang , Deng Xiong , Wenqiang Lei

Chart reasoning is a critical capability for Vision Language Models (VLMs). However, the development of open-source models is severely hindered by the lack of high-quality training data. Existing datasets suffer from a dual challenge:…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Zheng Liu , Honglin Lin , Chonghan Qin , Xiaoyang Wang , Xin Gao , Yu Li , Mengzhang Cai , Yun Zhu , Zhanping Zhong , Qizhi Pei , Zhuoshi Pan , Xiaoran Shang , Bin Cui , Conghui He , Wentao Zhang , Lijun Wu

Charts are ubiquitous in scientific and financial literature for presenting structured data. However, chart reasoning remains challenging for multimodal large language models (MLLMs) due to the lack of high-quality training data, as well as…

Artificial Intelligence · Computer Science 2026-04-06 Situo Zhang , Yifan Zhang , Zichen Zhu , Da Ma , Lei Pan , Danyang Zhang , Zihan Zhao , Lu Chen , Kai Yu

Visual language reasoning requires a system to extract text or numbers from information-dense images like charts or plots and perform logical or arithmetic reasoning to arrive at an answer. To tackle this task, existing work relies on…

Computation and Language · Computer Science 2023-10-05 Peifang Wang , Olga Golovneva , Armen Aghajanyan , Xiang Ren , Muhao Chen , Asli Celikyilmaz , Maryam Fazel-Zarandi

In the fields of computer vision and natural language processing, multimodal chart question-answering, especially involving color, structure, and textless charts, poses significant challenges. Traditional methods, which typically involve…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Jingxuan Wei , Nan Xu , Guiyong Chang , Yin Luo , BiHui Yu , Ruifeng Guo

Large Language Models (LLMs) often do not perform well on queries that require the aggregation of information across texts. To better evaluate this setting and facilitate modeling efforts, we introduce TACT - Text And Calculations through…

Computation and Language · Computer Science 2024-10-15 Avi Caciularu , Alon Jacovi , Eyal Ben-David , Sasha Goldshtein , Tal Schuster , Jonathan Herzig , Gal Elidan , Amir Globerson

Charts are widely used for data visualization across various fields, including education, research, and business. Chart Question Answering (CQA) is an emerging task focused on the automatic interpretation and reasoning of data presented in…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Muye Huang , Lingling Zhang , Lai Han , Wenjun Wu , Xinyu Zhang , Jun Liu

Chart summarization is a crucial task for blind and visually impaired individuals as it is their primary means of accessing and interpreting graphical data. Crafting high-quality descriptions is challenging because it requires precise…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Omar Moured , Jiaming Zhang , M. Saquib Sarfraz , Rainer Stiefelhagen

Vision Language Models (VLMs) often struggle with chart understanding tasks, particularly in accurate chart description and complex reasoning. Synthetic data generation is a promising solution, while usually facing the challenge of noise…

Artificial Intelligence · Computer Science 2025-08-19 Gongyao Jiang , Qiong Luo

Chart understanding is a quintessential information fusion task, requiring the seamless integration of graphical and textual data to extract meaning. The advent of Multimodal Large Language Models (MLLMs) has revolutionized this domain, yet…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Zhihang Yi , Jian Zhao , Jiancheng Lv , Tao Wang

Multimodal Large Language Models (MLLMs) have emerged as powerful tools for chart comprehension. However, they heavily rely on extracted content via OCR, which leads to numerical hallucinations when chart textual annotations are sparse.…

Artificial Intelligence · Computer Science 2025-12-02 Zhengzhuo Xu , SiNan Du , Yiyan Qi , SiwenLu , Chengjin Xu , Chun Yuan , Jian Guo

Large Language Models (LLMs) excel at many tasks but often falter on complex problems that require structured, multi-step reasoning. We introduce the Diagram of Thought (DoT), a framework that enables a single LLM to build and navigate a…

Computation and Language · Computer Science 2026-05-15 Yifan Zhang , Yang Yuan , Andrew Chi-Chih Yao

Answering reasoning-based complex questions over text and hybrid sources, including tables, is a challenging task. Recent advances in large language models (LLMs) have enabled in-context learning (ICL), allowing LLMs to acquire proficiency…