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Semantics (from Greek " σημαντικός " - semantikos ) is the study of meaning . - PowerPoint PPT Presentation


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Semantics (from Greek " σημαντικός " - semantikos ) is the study of meaning . It typically focuses on the relation between signifiers - words, phrases, signs and symbols - and what they stand for . From wikipedia. Semantics nowadays: Google. Example: hot dog.

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Semantics (from Greek "σημαντικός" - semantikos) is the study of meaning.

It typically focuses on the relation between signifiers - words, phrases, signs and symbols - and what they stand for.

From wikipedia




we want to find things on the web-> Google search for ‘hot dog’


Google sifts through trillions of web pages which it has come to understand


Hot dog

Hot dog ???

Google links what it thinks we mean

by a search phrase with what it thinks

a web page is about.


What is happening is Google is looking for

‘Machine readable information’



Hot dog
“Hot dog”

Is this an expression? someone’s address? a name? is this information connected with that information? What is the most important entry to display? Why does “hot dog” link to that ?


Intro to the Semantic Web http://youtu.be/OGg8A2zfWKg

The Future Internet: Service Web 3.0 http://youtu.be/off08As3siM

A story about the Semantic Web http://youtu.be/bd8zR0v7Jts


The web is moving from being a series of closed monolithic pages of information that we hop across like stepping stones


to being tiny particles of information aggregated and pages of information that we hop across like stepping stonesaligned with whatever purpose we have so that we will be able to swim through it like water.


This transition starts in pages of information that we hop across like stepping stonesthe code:by separating out the core elements

of web pages


Content pages of information that we hop across like stepping stones

Structure

Presentation


Content
Content pages of information that we hop across like stepping stones

Here’s the information


Structure
Structure pages of information that we hop across like stepping stones

Here’s the context of the information, how it should be labeled and classified


Presentation
Presentation pages of information that we hop across like stepping stones

Here’s how that information should be presented for a particular device and audience looking at it.


This simple idea of taking pages of information that we hop across like stepping stonescontent and using code to give it structure and then applying appropriate presentation is at the heart of where the web is going.


Because we have used the principle of pages of information that we hop across like stepping stonessemantics to give structure to the content we can reinterpret it and present it in any format on any device we desire.






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