Semantic Web

Assalamualaikum..
Now I'm gonna explain about semantic web.
Semantic web is web that enable users to search not only for the document that contain data, but also for the desired data itself.

Limitations of the current web

• limited ability to classify blocks of text on a page
• focus on publishing and presenting documents to human beings
• search engine are not intelligent enough (user must key in the exact/correct word)

example of semantic web

Semantic web components:

• XML
• RDF
• OWL

XML	RDF	OWL
extensible markup language markup language much like HTML describe data tags are not predefined W3C recommendations	resource description framework describe resource on the web designed not for display written in XML	web ontology language information contained in documents need to be processed by the applications relationship between terms/ meaning of terms hierarchical tree format

RDF statement:

The author of http://dibarahman.blogspot.com is Adibah

Predicate : author
Subject : http://dibarahman.blogspot.com
Object : Adibah

OWL (ontology)

• Lite :- 
• simple
• quick migration path
• lower formal complexity
• DL
• more complex than lite
• increase one level of searching in the hierarchical tree
• search for related words
• have conclusion of the searching
• Full
• more complex than DL
• it will refer back to the root of the hierarchical tree after finishing all the levels.
• No conclusion of the searching