Web 3.0
Justin Lee

web 1.0 web 2.0
?
web 3.0
1993 2003 2010 2020

Web 1.0
Read-only content and static HTML websites.

Web 2.0
User-generated content and social network

Web 3.0
Semantic Web, machine can read the data and help us

Semantic?

What is syntax?
How you say something.

What is semantic?
The meaning behind what you say.

Web page is written in HTML

HTML describes the syntax
not the semantics.

for example,
I love you.

I love you.
Does the meaning changed?
No, but machine don’t know.

what machine see what human see
http://www.w3.org/TR/xhtml-rdfa-primer/

The goals of semantic web
Spend less time searching
Spend less time looking at things that do not matter
Spend less time explaining what we want to computers

The problems of current web

When you try to organize a trip
on the web...

You have to consult a large numbers of sites.
You had to mentally integrate all those information to
achieve your goals.
Ivan Herman, 2009

friend list on social network...

You had to type in and connect with
friends again and again for each site.

Why?

Because current web is
web of documents.

Documents is unstructured.

unstructured data structured data
word document excel spreadsheet

current web vs. semantic web
unstructured data structured data
web of document web of data

Semantic web
enables people to share content beyond
the boundaries of applications and
websites.

How semantic web works?

Add metadata to webpages.
place
person
relationship
person
event

semantic web is not A.I.
http://www.lastexittonowhere.com/media/images/uploads/productimage-picture-skynet-43.jpg

How to add metadata to webpages?
RDFa

{
People and Organizations
hCard, XFN
Calendars and Events
hCalendar
Opinions, Ratings and Reviews
VoteLinks, hReview
Licenses:
rel-license
specifications Tags, Keywords, Categories
rel-tag
Lists and Outlines
XOXO
More…

With semantic web, we can...

increase search efficiency

bring information from one place to another
http://aarronwalter.com/presentations/sxsw08/

Demo

Semantic search engine

WolframAlpha http://www.wolframalpha.com/

retrevo: electronics http://www.retrevo.com

spock: people http://www.spock.com/

http://www.google.com/squared

Semantic web browser

Firefox with Operator Add-on
http://people.mozilla.com/~faaborg/files/20061213-fundamentalTypes/informationBroker.jpg_large.jpg

IE 8 with Opmph Add-on
http://visitmix.com/lab/oomph

IE 8’s web slice
http://www.microsoft.com/windows/internet-explorer/features/easier.aspx

Semantic web=World wide database
http://www.readwriteweb.com/archives/understanding_the_new_web_era_web_30_linked_data_s.php

From current web to semantic web

Thank you!

Backup Slides

Who’s using Microformats?
Google Maps
Yahoo Local
Upcoming
Facebook
Linkedin
eBay
Amazon

Web 1.0 vs. Web 2.0 and Web 3.0
http://www.experientia.com/blog/uploads/2007/07/web_3_2.gif

Natural Language Processing
for the Semantic Web
http://208.65.30.132:2060/products/cypher/img/ad-framework.gif

example of microformat’s hCard
<li id="33458931" class="vcard"><div class="main-data"><a href="http://local.yahoo.com/
info-33458931-ra-sushi-bar-restaurant-houston" class="biz-name fn org">RA Sushi Bar
Restaurant</a>
<em class="tel">(713) 621-0800</em>
<em class="adr">
<span class="street-address">3908 Westheimer Rd</span>
<span class="locality">Houston</span>,
<span class="region">TX</span></em>
<a href="http://www.rasushi.com/" class="url" target="_blank">www.rasushi.com</a>
</div>
</li>