Visualization Question Answering

A class of interactive systems that let users ask natural-language questions about a data visualization — a chart, graph, or map — and receive direct textual or spoken answers rather than having to interpret the visualization themselves. Visualization QA systems typically combine language understanding (often powered by large language models), access to the underlying dataset, and sometimes visual reasoning over the rendered chart. In accessibility, VisQA is especially significant because it offers blind and low-vision users bidirectional, analytical engagement with data that static alt text and data tables do not support, though challenges remain around hallucination, uncertainty communication, and handling diverse query strategies among disabled users.