DMCT-NOTES/unit 5/02_Web_Mining.md

Web Mining

Web Mining is using data mining techniques to discover useful information from the World Wide Web.

Types of Web Mining

1. Web Content Mining

• What: Mining the actual content of web pages.
• Data: Text, images, audio, video.
• Example: Analyzing reviews on Amazon to see if people like a product (Sentiment Analysis).

2. Web Structure Mining

• What: Mining the links (hyperlinks) between pages.
• Goal: To find important pages (Authorities) and pages that link to many others (Hubs).
• Example: Google's PageRank algorithm uses this to rank search results.

3. Web Usage Mining

• What: Mining user activity logs.
• Data: Server logs, browser history, clicks.
• Example: Analyzing which pages users visit most often and where they leave the site.