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Semantic Web

Web 3.0, Schema.org
by

Ali Shahab

on 6 September 2013

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Transcript of Semantic Web

Semantic Web
Web 3.0, HTML5, Microdata
History of Web
Web 1.0
1993
Read Only Web
Hyperlinks, Static
45 Million Global Users
Web 2.0
Read and Write
Content Sharing
Social Media
1 Billion + Global Users
2004
Web 3.0
Semantic
2010~
Semantic Web Results
History of Semantic
RDFa
Microformats
R
esource
D
escription
F
ramework
a
ttributes

<div
xmlns:v="http://rdf.data-vocabulary.org/#" typeof="v:Person"
>
My name is <span
property="v:name"
>Bob Smith</span>,
but people call me <span
property="v:nickname"
>Smithy</span>.
Here is my homepage:
<a href="http://www.example.com"
rel="v:url"
>www.example.com</a>.
I live in Albuquerque, NM and work as an <span
property="v:title"
>engineer</span>
at <span
property="v:affiliation"
>ACME Corp</span>.
</div>
RDFa example
Subject

Predicate

Object
Frank Hurley

takes

photographs
http://nla.gov.au/nla.pic-an25043941
James Cameron
449,983
Action | Adventure | Fantasy
2009
Sam Worthington
http://nla.gov.au/nla.pic-an25043941
actor
Date
duration
director
ratingCount
genre
Last but not least, Microdata
The Microdata specification is a way to label content to describe a specific type of information
Microdata uses simple attributes in HTML tags
It uses similar approaches as RDFa and Microformats.
Microdata Global Attributes
itemscope
itemtype
itemid
itemprop
itemref

Embedded items
<div
itemscope itemtype ="http://schema.org/Movie"
>
<h1
itemprop="name"
>Avatar</h1>
<div
itemprop="director"
itemscope itemtype="http://schema.org/Person"
>
Director: <span
itemprop="name"
>James Cameron</span>
(born <span
itemprop="birthDate"
>August 16, 1954)</span>
</div>
<span
itemprop="genre"
>Science fiction</span>
<a href="../movies/avatar-theatrical-trailer.html"
itemprop="trailer"
>Trailer</a>
</div>
Launched on June 2, 2011.
Is an initiative by Bing, Google and Yahoo.
Provides a collection of schemas
Improves the display of search results
Makes it easier for users to find relevant information
Schema.org
Schema.org
(there are around 300 of them)
Schema.org
(Most Popular)
Frank Hurley

takes

photographs
AVATAR
AVATAR
Subject
Objects
Predicates
Web 1.0, Web 2.0
Microformats
Google Rich Snippets
<div
class="vcard"
>
<img
class="photo"
src="www.example.com/bobsmith.jpg" />
<strong
class="fn"
>Bob Smith</strong>
<span
class="title"
>Senior editor</span> at <span
class="org"
>ACME Reviews</span>
<span
class="adr"
>
<span
class="street-address"
>200 Main St</span>
<span
class="locality"
>Desertville</span>, <span
class="region"
>AZ</span>
<span
class="postal-code"
>12345</span>
</span>
</div>
Google Rich Snippets
itemscope
<div
itemscope
>
<h1>Avatar</h1>
<span>Director: James Cameron (born August 16, 1954) </span>
<span>Science fiction</span>
<a href="../movies/avatar-theatrical-trailer.html">Trailer</a>
</div>
itemtype
<div
itemscope itemtype="http://schema.org/Movie"
>
<h1>Avatar</h1>
<span>Director: James Cameron (born August 16, 1954)</span>
<span>Science fiction</span>
<a href="../movies/avatar-theatrical-trailer.html">Trailer</a>
</div>
itemprop
<div
itemscope itemtype ="http://schema.org/Movie"
>
<h1
itemprop="name"
>Avatar</h1>
<span>Director: <span
itemprop="director"
>James Cameron</span> (born August 16, 1954)</span>
<span
itemprop="genre"
>Science fiction</span>
<a href="../movies/avatar-theatrical-trailer.html"
itemprop="trailer"
>Trailer</a>
</div>
Resources
http://schema.org
http://support.google.com/webmasters
itemtype="http://schema.org/WebPage"
itemprop="breadcrumb"
itemtype="http://schema.org/TheaterEvent" itemprop="name"
itemprop="image"
itemprop="description"
itemtype="http://schema.org/Place" itemprop="location"
itemtype="http://schema.org/Event"
itemprop="name"
itemprop="location"
itemprop="startDate"
itemtype="http://schema.org/Place"
itemprop="name"
itemtype="http://schema.org/UserComments"
itemprop="commentText"

itemtype="http://schema.org/AggregateRating"
itemprop="reviewCount"

Questions

James Cameron
449,983
Action | Adventure | Fantasy
162 min
2009
Sam Worthington
AVATAR
James Cameron
162 min
HTML5
(Semantic)
Tools
http://www.google.com/webmasters/tools/richsnippets
http://linter.structured-data.org/
http://schema-creator.org/
http://microformats.org/code/hcard/creator
http://microformats.org/code/hcalendar/creator
http://microformats.org/code/hreview/creator
Full transcript