We will define hierarchical-based web pages and how we can perform data extraction using the minimal code of the Struts 2 OGNL framework.

我们将定义一些基于层级的 web 页面，并展示如何使用最少的 Struts 2 OGNL 框架代码执行数据提取。

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Therefore, you can facilitate extraction of data from the web using a query language for XML such as XQuery.

因此，您可以使用针对XML的查询语言(比如XQuery)，促进从web抽取数据。

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This paper is deal with the system's background data and foreground data to emerge. So it designs a system about platform of fund data extraction and analysis base on web crawler.

本文针对系统后台数据的获取以及系统前台数据处理进行展现，设计出基于网络爬虫的基金信息的抽取与分析平台。

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Mr. Singhal said Google and the Metaweb team, which then numbered around 50 software engineers, have since expanded the size of the index to more than 200 million entities, partly by developing "extraction algorithms, " or mathematical formulas that can organize data scattered across the Web.

WSJ: Google Gives Search a Refresh