Copyright 2005 Digital Enterprise Research Institute. All rights reserved.

www.deri.org

DM110 Emerging Web Media

Dr. John Breslin

john.breslin@deri.orghttp://sw.deri.org/~jbreslin/

Week 1: Introductions

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Who am I?

Overview

1. Introductions / Web 2.02. Blogs3. Wikis4. Social networks5. Audio podcasting6. Video podcasting

7. Machinima8. Content sharing

9. Content syndication10. Semantic Web / Web 3.0

11. Study week12. Exam (27 March 2007)

Site

The DM110 Emerging Web Media course will have online content at the DERI E-Learning site:

http://teaching.deri.ie/

(Click on DM110!)

Signup

• First task:

Create a new account on the DERI E-Learning site (click on “Login” and go from there)

Enrol on the DM110 course (the enrollment key is “open”)

Create a post and say hello on the forum called “Introductions” (see next slide)

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The current (syntactic / structural) Web

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Was the Web meant to be more?

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– “An extension of the current Web in which information is given well-defined meaning, better enabling computers and people to work in cooperation.”

• Sir Tim Berners-Lee et al., Scientific American, 2001: tinyurl.com/i59p

– “…allowing the Web to reach its full potential…” with far-reaching consequences

– “The next generation of the Web”

What is the Semantic Web?

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The Semantic Web in essence

• The word “semantic” stands for “the meaning of”:– The Beatles were a popular band from Liverpool; Lennon was a

member of the Beatles; "Hey Jude" was recorded by the Beatles

• The Semantic Web is a Web that is able to describe things in a way that computers can understand

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What is Web 2.0?

• The term Web 2.0 was made popular by Tim O’Reilly:– http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/

what-is-web-20.html• http://en.wikipedia.org/wiki/Web_2.0

– “Web 2.0 … has … come to refer to what some people describe as a second phase of architecture and application development for the World Wide Web.”

• The Web where “ordinary” users can meet, collaborate, and share using social software applications on the Web (tagged content, social bookmarking, AJAX, etc.)

• Popular examples include:– Bebo, del.icio.us, digg, Flickr, Google Maps, Skype, Technorati,

orkut, 43 Things, Wikipedia…

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A move from the Web to a “social Web”

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Web 2.0 and social software

• Web 2.0 focuses include:– The Web as a platform for social and collaborative exchange– Reusable community contributions– Subscriptions to information, news, data flows, services– Mass-publishing using web-based social software

• http://en.wikipedia.org/wiki/Social_Software– “Social Software lets people rendezvous, connect or collaborate

by use of a computer network. It results in the creation of shared, interactive spaces…”

• Social software for communication and collaboration:– IM, IRC, Forums, Blogs, Wikis, Social Network Services, Social

Bookmarks, Podcasts, MMOGs…

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When did Web 2.0 appear?

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Features / principles of Web 2.0

– http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html

1. The Web as platform2. Harnessing collective intelligence3. Data is the next “Intel Inside”4. End of the software release cycle5. Lightweight programming models6. Software above the level of a single device7. Rich user experiences+ The long tail

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Web 2.0 meme map

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Web 2.0 meme cloud

Web 2.0 elements

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What are tagging and folksonomies?

• Tag:– A keyword which acts like a subject or category

• Folksonomy:– A collaboratively generated, open-ended labeling system that

enables Internet users to categorise content using tags:• Web links and pages (e.g. del.icio.us) using “social bookmarking”• Online photographs (e.g. Flickr, Zooomr)• Events (e.g. Upcoming.org)• Blog entries, etc.

• Tag cloud:– A visual depiction of the tags used on a website:

• Equivalent to a weighted list in the field of visual design

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From Web 1.0 to 2.0 (updated from O’Reilly)

Web 1.0Web 1.0 Web 2.0Web 2.0

Platforms Netscape, Internet Explorer Google Services, AJAX, Flock

Web Pages Personal Websites Blogs

Portals Content Management Systems Wikis

Encyclopediæ Britannica Online Wikipedia

Talk Netmeeting Skype, Asterisk

Knowledge Directories, Taxonomies Tagging, Folksonomies

Referencing Stickiness Syndication

Content Akamai BitTorrent, P2P

Events Evite Upcoming.org

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The path to Web 3.0 (the Semantic Web)

• The Semantic Web effort is mainly towards producing standards and recommendations that will interlink applications

• The Web 2.0 meme is about providing user applications

• Not mutually exclusive:– http://www.oreillynet.com/xml/blog/2005/10/

is_web_20_killing_the_semantic.html– With a little effort, many Web 2.0 applications can and do use

Semantic Web technologies to great benefit– We will now discuss Web 2.0 and describe what happens when

we combine it with the Semantic Web

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From Web 1.0 to Web 3.0

Web 1.0Web 1.0 Web 2.0Web 2.0 Web 3.0Web 3.0

Personal Websites Blogs Semantic Blogs

Content Management Systems, Britannica Online

Wikis, Wikipedia Semantic Wikis

Altavista, Google Google Personalised, DumbFind, Hakia

Semantic Search

CiteSeer, Project Gutenberg

Google Scholar, Book Search

Semantic Digital Libraries

Message Boards Community Portals Semantic Forums and Community Portals

Buddy Lists, Address Books

Online Social Networks Semantic Social Networks

… … Semantic Social Information Spaces

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Metaweb social semantic information spaces

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1+1>2

• Semantic forums• Semantic blogs• Semantic wikis• Semantic social nets• Semantic desktop

Semantic Web +social software >sum of its parts

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Communication channel hype cycle

– http://www.globalprblogweek.com/2005/09/21/murphy-pragmatic-public-relations/