Semantic Web, It's for real

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3 Απρ 2012 (πριν από 5 χρόνια και 4 μήνες)

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Jim Hendler Tetherless World Professor of Computer and Cognitive Science Assistant Dean of Information Technology and Web Science Rensselaer Polytechnic Institute

Tetherless World Constellation


The Semantic Web:

It

s for Real

Jim Hendler

Tetherless World Professor of Computer and Cognitive Science

Assistant Dean of Information Technology and Web Science

Rensselaer Polytechnic Institute


http://www.cs.rpi.edu/~hendler

@jahendler (twitter)

Tetherless World Constellation


My Web page

http://www.cs.rpi.edu/~hendler

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My embedded metadata

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My talk today

From Research

to Web

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DAML

Notional Schedule


Now

Later

2001: We will change the world!

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On the Web
--

links are critical!

<a href=

URI>

HTML

Web page

Any Web Resource

<a href=

http://…

>

RDF

URI

URI

URI

RDF is like the web!

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<mind:Person rdf:id=

Hendler

>


<mind:title jobs:Professor>


<jobs:placeOfWork http://www.cs.rpi.edu>

</mind:Person>

DOC1

Hendler

DOC1

Mind:title

Jobs:placeOfWork

Web Page

http://www…

Professor

Jobs:

Mind:

Jobs:

Links in the data

Tetherless World Constellation


<mind:Person rdf:id=

Hendler

>


owl:sameAs

<http://dbpedia.org/page/James_Hendler>




DOC2

Hendler

Mind:title

Jobs:placeOfWork

Web Page

http://www…

Jobs:Professor


Asserting Links in the data

Dbpedia:Hendler

Owl:sameAs

Dbpedia:ComputerScientist

Dbpedia:occupation

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Linking Web Resources

Sindice.com

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Linked Data is entering many sectors


Linkeddata.org 37 billion links

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Linked Data + Semantics


"Linked Data"
approach finds its
use cases in Web
Applications (at
Web scales)


A lot of data, a
little semantics


Finding
anything in the
mess can be a
win!


http://www.cs.rpi.edu/~hendler/LittleSemanticsWeb.html


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Semantic Web


What is different now?


Semantic Search


Advertising drives Web market


Some Visible successes


Watson, Siri, Evi…




Buzz


around data on the Web


Esp open govt data


Enterprise Technology Maturity


Market demand pushing tech maturation


(BUT
-

business models still not mature)


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Semantic Web


What is driving the change?


Maturation of RDF technologies


SPARQL endpoints


Embedded markup


Schema.org & RDFa


Lightweight Knowledge


A little semantics goes a long way

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Maturation of the

bottom


of the Semantic Web


What is

seeing

the most

use??

RDFa

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Facebook

s Open Graph Protocol

April 2010

Today

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Because they need the links!

2012: Extending the Social Graph

Tetherless World Constellation


Creates a platform for SW
-
powered apps

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Schema.org (6/2011)

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Schema.org

Video results show above regular results because of the embedded schemas


-

Google isn

t

guessing


on these

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Rumors of bigger Google play coming soon

July 2010

Feb 2012

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Semantic Web in the Enterprise

Aug 2010

cf.
Oracle 2012

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Enterprise Semantic Web

DoD RFI


12/2011

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Watson and Semantic Web

IBM

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Watson and Semantic Web

IBM

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Agents coming

Agent Technology is here

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With more to come

Agent Technology is here


(and more to come…)

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Semantic Search

IEEE Computer, Jan 2010; IEEE Computing Now, Feb 2010 (free)

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Semantic Search 2009
-
2010

Emerging search engines, new functionality

Tetherless World Constellation


Semantic Search 2011
-
12

Integrated into search engines, continuing improvement

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Linked Data
(RDF, SPARQL)

Semantic Web
(RDFS, owl)

Web 3.0

Web 2.0

Web 3.0 extends current Web applications using Semantic
Web, esp semantic and real
-
time search, technologies and
graph
-
based, open data.


Web 3.0


Web (REST API)

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Example:Trialx.com

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Unclear business model

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Which may be a feature


Significant and growing
commercial interest…


Web: Google, Amazon, Travelocity…


Web 2.0: Facebook, Wikipedia,
YouTube, Twitter…


Web 3.0: ??


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Summary


The Semantic Web is real


People asking

how,


not why


So far the commercial driver has been

weak
semantics



Very Simple

ontologies




Lots of linking


Metadata agreements, not ontology alignments


Web 3.0 adds semantics as a value add to regular
Web functionality



Data mashup


Semantic search


Semantic match


Investor excitement: The big one is still out there


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Your Questions Were


Requested Session Focus


My internal contacts here at Nuance have requested a basic
introduction on semantic web, with the discussion biased toward
two use cases:


Question answering by machine



When does home depot close?





Who has tylenol on sale?





Where is the nearest shoe store that carries Rockport?


(See Semantic Search)


Automated agents




Buy two tickets to the Patriots Jets game.





Reorder Bond Street English Breakfast from Upton Tea.





Find the lowest price on a Canon 70 to 200 f4 IS lens and email me the
link.


(Discuss Siri)