Why Do We Use Web Data Extraction?
The main reason to employ web extraction techniques is the acquiring of large amounts of data for further analysis and later usage. To extract information from a website the page must be downloaded first, just like a web browser does when an internet user is viewing a page). The main components of web data extraction are web crawling, meaning downloading (or fetching) web pages for further analysis and processing. Extraction commences after the download procedure, and there are different methods that are used to extract data – parsing, searching, formatting, simple copying and much more.