Charting the Future: Using Chart Question-Answering for Scalable Evaluation of LLM-Driven Data Visualizations

James Ford, Xingmeng Zhao, Dan Schumacher, Anthony Rios


Abstract
We propose a novel framework that leverages Visual Question Answering (VQA) models to automate the evaluation of LLM-generated data visualizations. Traditional evaluation methods often rely on human judgment, which is costly and unscalable, or focus solely on data accuracy, neglecting the effectiveness of visual communication. By employing VQA models, we assess data representation quality and the general communicative clarity of charts. Experiments were conducted using two leading VQA benchmark datasets, ChartQA and PlotQA, with visualizations generated by OpenAI’s GPT-3.5 Turbo and Meta’s Llama 3.1 70B-Instruct models. Our results indicate that LLM-generated charts do not match the accuracy of the original non-LLM-generated charts based on VQA performance measures. Moreover, while our results demonstrate that few-shot prompting significantly boosts the accuracy of chart generation, considerable progress remains to be made before LLMs can fully match the precision of human-generated graphs. This underscores the importance of our work, which expedites the research process by enabling rapid iteration without the need for human annotation, thus accelerating advancements in this field.
Anthology ID:
2025.coling-main.501
Volume:
Proceedings of the 31st International Conference on Computational Linguistics
Month:
January
Year:
2025
Address:
Abu Dhabi, UAE
Editors:
Owen Rambow, Leo Wanner, Marianna Apidianaki, Hend Al-Khalifa, Barbara Di Eugenio, Steven Schockaert
Venue:
COLING
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
7497–7510
Language:
URL:
https://aclanthology.org/2025.coling-main.501/
DOI:
Bibkey:
Cite (ACL):
James Ford, Xingmeng Zhao, Dan Schumacher, and Anthony Rios. 2025. Charting the Future: Using Chart Question-Answering for Scalable Evaluation of LLM-Driven Data Visualizations. In Proceedings of the 31st International Conference on Computational Linguistics, pages 7497–7510, Abu Dhabi, UAE. Association for Computational Linguistics.
Cite (Informal):
Charting the Future: Using Chart Question-Answering for Scalable Evaluation of LLM-Driven Data Visualizations (Ford et al., COLING 2025)
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PDF:
https://aclanthology.org/2025.coling-main.501.pdf