Semantic Web

„Man muss das Unmögliche tun um das Mögliche zu erreichen.“ - Hermann Hesse.

Web documents without meta-data

● Plain HTML format without metadata description→ Problem: Search engines need to extract useful information trough parsing tools and also using natural language processing

Web documents with metadata

● Better documents, describing information about keywords, author, kontext

Problem: Even if the header of a web document is annotated, the content remains unknown

Web documents with structured data

● Content of web documents is annotated and can be used to be recognized by machines

A topological query is possible which has access to the nodes of structured data.

Any parsing or less parsing is needed

Semantic Web

● Entities are described via URIs

in Dublin Core Format, RDFa, RichSnippet

There is a tool from Google to annotate semantics for a web document:

http://www.google.com/webmasters/tools/richsnippets

Bye