Reactive Vega: A Streaming Dataflow Architecture for Declarative Interactive Visualization
We present Reactive Vega, a system architecture that provides the first robust and comprehensive treatment of declarative visual and interaction design for data visualization. Starting from a single declarative specification, Reactive Vega constructs a dataflow graph in which input data, scene graph elements, and interaction events are all treated as first class streaming data sources. To support expressive interactive visualizations that may involve time varying scalar, relational, or hierarchical data, Reactive Vega's dataflow graph can dynamically re write itself at runtime by extending or pruning branches in a data driven fashion. We discuss both compile and run time optimizations applied within Reactive Vega, and share the results of benchmark studies that indicate superior interactive performance to both D3 and the original, non reactive Vega system.
IEEE Transactions on Visualization and Computer Graphics