Difference between revisions of "Semantic web"

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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
 
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.
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Search engines made the web much more accessible:  AltaVista (95), Infoseek, Lycos, Excite (which could have bought Google for 750,000 in 1998), and of course Google.
  
 
==Markup languages==
 
==Markup languages==
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add either structural/presentational (HTML) or semantic (XML) information to plain text.  CSS and XSL are languages that instruct browsers on how to display HTML and XML pages (these are called stylesheets).  Schema (often called DTDs) provide the relationships between the mark-up tags used in the document.  The <Doctype> declaration at the beginning of an HTML or XHTML document points to the schema at W3.
 
add either structural/presentational (HTML) or semantic (XML) information to plain text.  CSS and XSL are languages that instruct browsers on how to display HTML and XML pages (these are called stylesheets).  Schema (often called DTDs) provide the relationships between the mark-up tags used in the document.  The <Doctype> declaration at the beginning of an HTML or XHTML document points to the schema at W3.
  
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==Other data mining==
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;EXIF
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;file attributes
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;mail headers
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;templates
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;Semantic MediaWiki (([https://www.semantic-mediawiki.org/wiki/Help:User_manual user] | [https://www.semantic-mediawiki.org/wiki/Help:Administrator_manual admin]) manual)
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==Databases==
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;sql
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:structured query language
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;mysql, postgres, Access, Oracle
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==Rendering==
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;CSS
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;XSLT
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;xQuery
  
 
[[Category: Linguistics]]
 
[[Category: Linguistics]]
 
[[Category: Semantics]]
 
[[Category: Semantics]]
 
[[Category: Computing]]
 
[[Category: Computing]]

Latest revision as of 18:48, 16 February 2017

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, Excite (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
(x)HTML
(eXtensible?) HyperText Markup Language

add either structural/presentational (HTML) or semantic (XML) information to plain text. CSS and XSL are languages that instruct browsers on how to display HTML and XML pages (these are called stylesheets). Schema (often called DTDs) provide the relationships between the mark-up tags used in the document. The <Doctype> declaration at the beginning of an HTML or XHTML document points to the schema at W3.

Other data mining

EXIF
file attributes
mail headers
templates
Semantic MediaWiki ((user | admin) manual)

Databases

sql
structured query language
mysql, postgres, Access, Oracle


Rendering

CSS
XSLT
xQuery