Internet reading

What is SEO -

The process of improving the position of your website appears at in the organic searcher results by sites like google.

Spiders - software the crawls the web to Identify the actual copy written on the page along with things like use of key words and phrases.

Page rank - shows how trustworthy your site is

Determines the usefulness of a page by how many pages are linked to it

Google bots - check how many pages are linked to a website

Map reduce - uses clusers to process data after than any super computer

Beware of rank farms

Big data - large amounts of information that grow at increasing rates

Big data is manages by:

• data storage

• Data mining

• Data analytics

• Data visualisation

Process -

• Crawler goes to website and collects data,

• Sends data to cluster.

• Cluster sends multiple copies to nodes

• Master node makes smaller nodes process list

• Nodes shuffles the data

• Duplicates get removed

• Data gets sent to central disk to update google search engine