基于子树匹配的交互式Web数据抽取方法

Approach for Interactive Web Data Extraction Based on Sub-tree Matching

查询相关的Web页面中的数据记录之间具有极高的代码结构相似性,Web数据记录对应的DOM子树之间自然也就具有很高的结构相似性。针对查询相关的Web页面的特点,提出了一种基于DOM子树匹配的交互式Web数据抽取方法,实验证明,该方法能保证很高的数据抽取查全率和准确率。

There is high structural comparability among the HTML codes of Web data rows in query-related Web pages, Naturally, the structures of sub DOM trees are similar to each other, An approach based on sub-tree matching algorithm for interactive query related Web data extraction is represented, The result of the experiment shows high accuracy in terms of recall and precision.