Tuesday, July 20, 2010

Semantic web is coming

The following Semantic Web Tutorial was taken from :

http://www.w3schools.com/semweb/default.asp (using evernote, I might add, try it, you'll love it!)

The word semantic stands for the meaning of.
The semantic of something is the meaning of something.
The Semantic Web = a Web with a meaning

The word semantic stands for the meaning of.
The semantic of something is the meaning of something.
The Semantic Web = a Web with a meaning.

What is the Semantic Web?
The Semantic Web is a web that is able to describe things in a way that computers can understand.

The Beatles was a popular band from Liverpool.
John Lennon was a member of the Beatles.
"Hey Jude" was recorded by the Beatles.

Sentences like the ones above can be understood by people. But how can they be understood by computers?

Statements are built with syntax rules. The syntax of a language defines the rules for building the language statements. But how can syntax become semantic?

This is what the Semantic Web is all about. Describing things in a way that computers applications can understand it.

The Semantic Web is not about links between web pages.

The Semantic Web describes the relationships between things (like A is a part of B and Y is a member of Z) and the properties of things (like size, weight, age, and price)

"If HTML and the Web made all the online documents look like one huge book, RDF, schema, and inference languages will make all the data in the world look like one huge database."

Tim Berners-Lee, Weaving the Web, 1999

"I have a dream for the Web [in which computers] become capable of analyzing all the data on the Web – the content, links, and transactions between people and computers. A ‘Semantic Web’, which should make this possible, has yet to emerge, but when it does, the day-to-day mechanisms of trade, bureaucracy and our daily lives will be handled by machines talking to machines. The ‘intelligent agents’ people have touted for ages will finally materialize."

Tim Berners-Lee, 1999


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