ChartMark: A Structured Grammar for Chart Annotation
Yiyu Chen -
Yifan Wu -
Shuyu Shen -
Yupeng Xie -
Leixian Shen -
Hui Xiong -
Yuyu Luo -
Screen-reader Accessible PDF
Download camera-ready PDF
Download Supplemental Material
Room: Room 0.94 + 0.95
Keywords
Chart Annotation, Grammar Language-agnostic
Abstract
Chart annotations enhance visualization accessibility but suffer from fragmented, non-standardized representations that limit cross-platform reuse. We propose ChartMark, a structured grammar that separates annotation semantics from visualization implementations. ChartMark features a hierarchical framework mapping onto annotation dimensions (e.g., task, chart context), supporting both abstract intents and precise visual details. Our toolkit demonstrates converting ChartMark specifications into Vega-Lite visualizations, highlighting its flexibility, expressiveness, and practical applicability.