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Natural language is a powerful complementary modality of communication for data visualizations, such as bar and line charts. To facilitate chart-based reasoning using natural language, various downstream tasks have been introduced recently…

Computation and Language · Computer Science 2024-10-07 Mohammed Saidul Islam , Raian Rahman , Ahmed Masry , Md Tahmid Rahman Laskar , Mir Tafseer Nayeem , Enamul Hoque

Flowcharts are graphical tools for representing complex concepts in concise visual representations. This paper introduces the FlowLearn dataset, a resource tailored to enhance the understanding of flowcharts. FlowLearn contains complex…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Huitong Pan , Qi Zhang , Cornelia Caragea , Eduard Dragut , Longin Jan Latecki

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

Although Multimodal Large Language Models (MLLMs) have demonstrated increasingly impressive performance in chart understanding, most of them exhibit alarming hallucinations and significant performance degradation when handling non-annotated…

Computation and Language · Computer Science 2025-12-16 Xiao Zhang , Dongyuan Li , Liuyu Xiang , Yao Zhang , Cheng Zhong , Zhaofeng He

Charts are widely used to present complex data for analysis and decision making. Existing chart understanding benchmarks mainly focus on static charts, but real-world charts are often dynamic and interactive. Key information may only appear…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Muye Huang , Lin Wu , Lingling Zhang , Hang Yan , Zhiyuan Wang , Yumeng Fu , Zesheng Yang , Jun Liu

Bar charts are an effective way to convey numeric information, but today's algorithms cannot parse them. Existing methods fail when faced with even minor variations in appearance. Here, we present DVQA, a dataset that tests many aspects of…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Kushal Kafle , Brian Price , Scott Cohen , Christopher Kanan

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

Chart question answering (CQA) has become a critical multimodal task for evaluating the reasoning capabilities of vision-language models. While early approaches have shown promising performance by focusing on visual features or leveraging…

Computation and Language · Computer Science 2025-05-30 Jingxuan Wei , Nan Xu , Junnan Zhu , Yanni Hao , Gaowei Wu , Bihui Yu , Lei Wang

Vision-Language Models (VLMs) have shown promise in generating plotting code from chart images, yet achieving structural fidelity remains challenging. Existing approaches largely rely on supervised fine-tuning, encouraging surface-level…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Minggui He , Mingchen Dai , Jian Zhang , Yilun Liu , Shimin Tao , Pufan Zeng , Osamu Yoshie , Yuya Ieiri

Large vision-language models (LVLMs) struggle to reliably detect visual primitives in charts and align them with semantic representations, which severely limits their performance on complex visual reasoning. This lack of perceptual…

Artificial Intelligence · Computer Science 2026-03-13 Eunsoo Lee , Jeongwoo Lee , Minki Hong , Jangho Choi , Jihie Kim

While table understanding increasingly relies on pixel-only settings, current benchmarks predominantly use synthetic renderings that lack the complexity and visual diversity of real-world tables. Additionally, existing visual table…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Iñigo Alonso , Imanol Miranda , Eneko Agirre , Mirella Lapata

Chart parsing poses a significant challenge due to the diversity of styles, values, texts, and so forth. Even advanced large vision-language models (LVLMs) with billions of parameters struggle to handle such tasks satisfactorily. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Jinyue Chen , Lingyu Kong , Haoran Wei , Chenglong Liu , Zheng Ge , Liang Zhao , Jianjian Sun , Chunrui Han , Xiangyu Zhang

Accurate chart comprehension represents a critical challenge in advancing multimodal learning systems, as extensive information is compressed into structured visual representations. However, existing vision-language models (VLMs) frequently…

Machine Learning · Computer Science 2026-03-10 Xin Zhang , Xingyu Li , Rongguang Wang , Ruizhong Miao , Zheng Wang , Dan Roth , Chenyang Li

Chart question-answering (QA) benchmarks aim to pose questions that require visual reasoning to correctly answer, but models can often reach solutions through shortcuts or prior familiarity with a chart based on their own background…

Computation and Language · Computer Science 2026-05-27 Yifan Jiang , Dae Yon Hwang , Jesse C. Cresswell , Freda Shi

Large Vision-Language Models (LVLMs) have recently demonstrated remarkable progress, yet hallucination remains a critical barrier, particularly in chart understanding, which requires sophisticated perceptual and cognitive abilities as well…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Xingqi Wang , Yiming Cui , Xin Yao , Shijin Wang , Guoping Hu , Xiaoyu Qin

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

Charts are important for presenting and explaining complex data relationships. Recently, multimodal large language models (MLLMs) have shown remarkable capabilities in various chart understanding tasks. However, the sheer size of these…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Liang Zhang , Anwen Hu , Haiyang Xu , Ming Yan , Yichen Xu , Qin Jin , Ji Zhang , Fei Huang

Natural-language-to-visualization (NL2VIS) systems based on large language models (LLMs) have substantially improved the accessibility of data visualization. However, their further adoption is hindered by two coupled challenges: (i) the…

Human-Computer Interaction · Computer Science 2026-01-23 Marko Hostnik , Rauf Kurbanov , Yaroslav Sokolov , Artem Trofimov

The ability to explain complex information from chart images is vital for effective data-driven decision-making. In this work, we address the challenge of generating detailed explanations alongside answering questions about charts. We…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Shamanthak Hegde , Pooyan Fazli , Hasti Seifi

Multi-modal large language models have demonstrated impressive performances on most vision-language tasks. However, the model generally lacks the understanding capabilities for specific domain data, particularly when it comes to…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Yucheng Han , Chi Zhang , Xin Chen , Xu Yang , Zhibin Wang , Gang Yu , Bin Fu , Hanwang Zhang