Task-oriented visual recommendation method and device (Chinese)

The invention provides a task-oriented visual recommendation method and device, and the method comprises the steps: carrying out the data feature extraction of a task data set, and obtaining task data feature information; converting the task data feature information and the task data set into task statements conforming to answer set programming specifications; solving the task statement according to a preset visual task rule base to obtain visual chart information; and sorting the visual chart information according to the technical complexity value to obtain a recommended visual chart. All the charts conforming to the rule set in the rule base are enumerated through Clingo software, and all the charts are represented through Vega-Lite. And meanwhile, according to the complexity of the chart, the columns in which the user is interested and the coverage range of the tasks, a plurality of visual sorting schemes are designed, so that the task-oriented visual recommendation can be accurately and efficiently realized.

本发明提供一种面向任务的可视化推荐方法及装置，该方法包括：对任务数据集进行数据特征提取，得到任务数据特征信息；将所述任务数据特征信息和所述任务数据集，转换为符合回答集编程规范的任务语句；按照预设可视化任务规则库对所述任务语句进行求解，得到可视化图表信息；按照技术复杂度值对所述可视化图表信息进行排序，得到推荐可视化图表。通过利用Clingo软件枚举所有符合规则库中规则集合的图表，其中所有图表利用Vega‑Lite来表征。同时根据图表的复杂性，用户感兴趣的列和任务的覆盖范围，设计了多种可视化排序方案，从而可以准确高效的实现面向任务的可视化推荐。