Difference between revisions of "Semantic web"

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(Markup languages)
(Markup languages)
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;HTML
 
;HTML
 
:HyperText Markup Language
 
:HyperText Markup Language
 +
 +
add either structural/presentational (HTML) or semantic (XML) information to plain text.  For example:
 +
 +
*<h1>particles</h1>
 +
*<h2>adpositions</h2>
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*<p>The term <i>ad</i>position is a hyperonym for the terms <i>pre</i>position and <i>post</i>position

Revision as of 14:57, 8 April 2011

Introduction

One difficulty with the web is its sheer size. In the early days, I navigated the Internet through a combination of errance and navigating through hierarchical Gopher menus (which by 1995 began to be supplanted by web directories like Yahoo! and AltaVista

Search engines made the web much more accessible: AltaVista (95), Infoseek, Lycos, Exicte (which could have bought Google for 750,000 in 1998), and of course Google.

Markup languages

The languages of the web, such as:

SGML
Standardized General Markup Language
XML
eXtensible Markup Language
HTML
HyperText Markup Language

add either structural/presentational (HTML) or semantic (XML) information to plain text. For example:

  • particles

  • adpositions

  • The term adposition is a hyperonym for the terms preposition and postposition