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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

Chart generation aims to generate code to produce charts satisfying the desired visual properties, e.g., texts, layout, color, and type. It has great potential to empower the automatic professional report generation in financial analysis,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-19 Bingxuan Li , Yiwei Wang , Jiuxiang Gu , Kai-Wei Chang , Nanyun Peng

With advancements in deep learning (DL) and computer vision techniques, the field of chart understanding is evolving rapidly. In particular, multimodal large language models (MLLMs) are proving to be efficient and accurate in understanding…

Artificial Intelligence · Computer Science 2026-01-21 Ahmad Mustapha , Charbel Toumieh , Mariette Awad

Recently, large language models have shown remarkable reasoning capabilities through long-chain reasoning before responding. However, how to extend this capability to visual reasoning tasks remains an open challenge. Existing multimodal…

Computation and Language · Computer Science 2025-06-13 Caijun Jia , Nan Xu , Jingxuan Wei , Qingli Wang , Lei Wang , Bihui Yu , Junnan Zhu

The emergence of Multi-modal Large Language Models (MLLMs) presents new opportunities for chart understanding. However, due to the fine-grained nature of these tasks, applying MLLMs typically requires large, high-quality datasets for…

Computation and Language · Computer Science 2025-10-08 Yifan Wu , Lutao Yan , Leixian Shen , Yinan Mei , Jiannan Wang , Yuyu Luo

We introduce InterChart, a diagnostic benchmark that evaluates how well vision-language models (VLMs) reason across multiple related charts, a task central to real-world applications such as scientific reporting, financial analysis, and…

Computation and Language · Computer Science 2026-05-04 Anirudh Iyengar Kaniyar Narayana Iyengar , Srija Mukhopadhyay , Adnan Qidwai , Shubhankar Singh , Dan Roth , Vivek Gupta

Large Language Models (LLMs) can extend their parameter knowledge limits by adopting the Tool-Integrated Reasoning (TIR) paradigm. However, existing LLM-based agent training framework often focuses on answers' accuracy, overlooking specific…

Artificial Intelligence · Computer Science 2026-01-21 Yifei Chen , Guanting Dong , Zhicheng Dou

Recent research has explored the use of Large Language Models (LLMs) for tackling complex graph reasoning tasks. However, due to the intricacies of graph structures and the inherent limitations of LLMs in handling long text, current…

Artificial Intelligence · Computer Science 2025-11-26 Yuwei Hu , Runlin Lei , Xinyi Huang , Zhewei Wei , Yongchao Liu

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

Data visualization in the form of charts plays a pivotal role in data analysis, offering critical insights and aiding in informed decision-making. Automatic chart understanding has witnessed significant advancements with the rise of large…

Computation and Language · Computer Science 2024-12-06 Kung-Hsiang Huang , Hou Pong Chan , Yi R. Fung , Haoyi Qiu , Mingyang Zhou , Shafiq Joty , Shih-Fu Chang , Heng Ji

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

Advancements in large language models (LLMs) allow them to address diverse questions using human-like interfaces. Still, limitations in their training prevent them from answering accurately in scenarios that could benefit from multiple…

Artificial Intelligence · Computer Science 2025-04-09 Yoshitaka Inoue , Tianci Song , Xinling Wang , Augustin Luna , Tianfan Fu

Artificial intelligence has shown promise in medical imaging, yet most existing systems lack flexibility, interpretability, and adaptability - challenges especially pronounced in ophthalmology, where diverse imaging modalities are…

Solving complex reasoning tasks may involve visual understanding, domain knowledge retrieval, numerical calculation, and multi-step reasoning. Existing methods augment large language models (LLMs) with external tools but are restricted to…

Machine Learning · Computer Science 2026-04-15 Pan Lu , Bowen Chen , Sheng Liu , Rahul Thapa , Joseph Boen , James Zou

Automating operations research (OR) with large language models (LLMs) remains limited by hand-crafted reasoning--execution workflows. Complex OR tasks require adaptive coordination among problem interpretation, mathematical formulation,…

Artificial Intelligence · Computer Science 2026-04-21 Jiahao Huang , Peilan Xu , Xiaoya Nan , Wenjian Luo

Scientific research increasingly relies on specialized computational tools, yet effectively utilizing these tools demands substantial domain expertise. While Large Language Models (LLMs) show promise in tool automation, they struggle to…

Artificial Intelligence · Computer Science 2025-07-29 Keyan Ding , Jing Yu , Junjie Huang , Yuchen Yang , Qiang Zhang , Huajun Chen

Chart comprehension presents significant challenges for machine learning models due to the diverse and intricate shapes of charts. Existing multimodal methods often overlook these visual features or fail to integrate them effectively for…

Computation and Language · Computer Science 2024-08-01 Hanwen Zheng , Sijia Wang , Chris Thomas , Lifu Huang

Spreadsheets are central to real-world applications such as enterprise reporting, auditing, and scientific data management. Despite their ubiquity, existing large language model based approaches typically treat tables as plain text,…

Computation and Language · Computer Science 2026-04-15 Houxing Ren , Mingjie Zhan , Zimu Lu , Ke Wang , Yunqiao Yang , Haotian Hou , Hongsheng Li

Large language models (LLMs) and agent techniques have brought a fundamental shift in the functionality and development paradigm of data analysis tasks (a.k.a LLM/Agent-as-Data-Analyst), demonstrating substantial impact across both academia…

Understanding charts requires models to jointly reason over geometric visual patterns, structured numerical data, and natural language -- a capability where current vision-language models (VLMs) remain limited. We introduce ChartNet, a…