Understanding the semantics of data wrangling scripts is a common requirement for data workers.However,due to the complexity and diversity of the types of data transformations and their parameters,un-derstanding the semantics of wrangling scripts is time-consuming and laborious.We worked with four data workers and developed an interactive visualization system,called ChangeVis,to help data workers under-stand the changes of tables in the process of data wrangling.Based on the Focus+Context technique,ChangeVis scales well and illustrates the changes of table structure,the semantics of data transformations,the changes of column information,and the changes of cell data on a selected code snippet.We used two use cases and a semi-structured user study to demonstrate the usability and effectiveness of ChangeVis.
关键词
数据整理/程序可视化/可视化设计/表格数据可视化
Key words
data wrangling/program visualization/visualization design/tabular data visualization
维普
万方数据