The first is Web content mining, which describes the process of information retrieval and extraction from varieties of sources across the World Wide Web.

二是网络使用挖掘，指挖掘网站访问方式或其他网络用户信息的过程。

youdao

The World Wide Web, the leading information retrieval service of the Internet, now permits millions of American voters to access data about issues and candidates, allows politicians to create their own web pages for further dissemination of information, offers information on campaign contributions, and even includes "push technology, " whereby Internet users can customize the type of information they receive from Web sources.

CNN: Understanding The Role of the Media