Lecture 1 Jan 08, 2008. Outline Course logistics Introducing tools to be used in the course Overview of Social Web and Web 2.0 Definition History Key.

Lecture 1Jan 08, 2008

Outline

Course logisticsIntroducing tools to be used in the courseOverview of Social Web and Web 2.0

DefinitionHistoryKey elementsExample applications

Logistics

Weekly CourseworkAssignmentsFinal Project

Weekly Coursework

Assigned reading2 papers out of 4-6 assigned readings for two

topics per week

Response to assigned reading2 postings

A critique, an elaborated question creating discussion, or a reply to earlier posts

To be posted by Sunday midnight before the class in Comtella-D

15% of the grade

Weekly Coursework

Learning journal Reflection of what you have learned about the

topics covered last weekAbout one paragraphTo be posted by the next class on your blog

8% of the grade

Weekly Coursework

Resource sharingFinding 2 interesting resources (a system, a

video, a blog posting, a comic, etc.) related to either topics discussed every class

Include a short remark describing the resource

To be posted by the next class in Umtella

5% of the gradeShow and Tell

2 times throughout the semesterPresents the resources you have found to class

5% of the grade

Assignments & Final Project

AssignmentsCreating “About You” on Facebook (2%)Programming assignment using social web

technologies (10%)Before midterm

Comprehensive study of several social systems (15%)

Midterm

Final projectGroup projectMash-ups, Facebook APIs, DRUPAL, … (40%)

Facebook

Social networkingUser InteractionCreating and Sharing of content

PurposeAbout You

URL: www.facebook.com

Wordpress Blog

WeblogSoftware tools allowing easy creation of a website

PurposePersonal learning journal

URL: www.wordpress.com

Wiki

Collaborative development of a websitePurpose

Summary of lectures

Sample wikihttp://ir.exp.sis.pitt.edu/paws_resources/index.php/Main_Page

Umtella

PurposeResource sharing

URL: http://umtella.usask.ca/um

Comtella-D

Discussion forumPurpose

Postings on assigned readingsURL

http://fire.usask.ca/Login.aspx

CoPE

Paper summary sharing sitePurpose

Post summaries of core topic papersURL: http://adapt2.sis.pitt.edu/cope/

CiteULike

Research paper sharing sitePurpose

Post discovered relevant papers

URL:http://www.citeulike.org/

Social Web

What do you think?

The Social Web

Open global distributed data sharing network similar to today's World Wide Web, except instead of linking documents, the Social Web will link people, organizations, and concepts.

Coverage of Social Web in Media

Web 2.0

Term was introduced following the first O'Reilly Media Web 2.0 conference in 2004

By September 2005, a Google search for Web 2.0 returned more than 9.5 million results

Next generation web exploiting user-generated content in sophisticated and powerful way

Web 2.0 video by Tim OR’eilly (http://youtube.com/watch?v=CQibri7gpLM)

What Web 2.0 is and what is not

Semantic web

Collection of new web technologies

Innovative applications of existing

technologies

blogs, wikis, and RSS

Living Web Read-Write Web

What is Web 2.0

Web 1.0 Web 1.0

Web 2.0

Semantic Web

User Centric

Data Centric

Fun Video on YouTube (http://youtube.com/watch?v=XPYLn2QblNI)

Key Elements

What comes to your mind first when you think about web 2.0?

Key Elements

1. Collective IntelligenceThe web of connections

grows organically as an output of the collective activity of all web users

Critical mass of participation act as filtering what is valuable

User reviews on Amazon.com

Key Elements

• 25%-40% of Amazon’s sales• 1/5 of netflix rentals comes

from not top 3000 movies

2. Long TailFirst coined by Chris Anderson (2004)

“Businesses with distribution power can sell a greater volume of otherwise hard-to-find items at small volumes than of popular items at large volumes. “

Majority of truly relevant information available on the web is not on the well known web servers

Key Elements

3. Data ReuseUsage of APIs (Application Programming

Interfaces)Mash-ups

programming on the web

High level of abstraction

Successes

Amazon.com Winning over competitors by engaging users

Successes

Google PageRank search algorithmUsing the link structure of the web

Successes

eBayCollective activity of all its users

Time-bar of Web 2.0

Collaboration & Collective Intelligence

Intelligence that emerges from collaboration of many individuals

Social navigationNavigation towards cluster of peopleNavigation because other people have looked at

somethingFollowing footprint of others

Collaborative browsingNavigation of the Internet by several people

sharing the same information seeking goal and interests

Community based Systems

Harnessing the power of the community to create and structure new informationCommunity based web searchCommunity based browsing

1

10Synthesizers

100consumers

creators

Technologies

RSSReally Simple SyndicationXML based metadata contentProvides updates when the content is modified

Web services"a software system designed to support interoperable Machine to Machine

interaction over a network." SOAP

Simple Object Access ProtocolA protocol for exchanging XML-based messages over computer networks,

normally using HTTP/HTTPSAjax

Asynchronous JavaScript and XMLA group of inter-related web development techniques used for creating

interactive web applicationsMash-up

A web application that combines data from more than one source into a single integrated tool

Social Technologies

FolksonomyCollaborative tagging

The practice and method of collaboratively creating and managing tags to annotate and categorize content

Social Technologies

PodcastingiPod + BroadcastA collection of digital media files which is

distributed over the Internet using syndication feeds for playback on portable media players and personal computers

Famous Web 2.0 Applications

WikipediaLaunched in 2001Largest and fastest growing, and most popular reference workAs of December 2007

9 ¼ million articles in 253 languages2,154,000 articles in English

Famous Web 2.0 Applications

Delicious & FlickrPioneered the concept of folksonomy

Collaborative categorization using freely chosen keywords (tags)

Famous Web 2.0 Applications

CloudmarkCollaborative spam filtering

Aggregate the individual decisions of email users

Famous Web 2.0 Applications

SourceForge.netPeer-production methods of open source software projects

Future

2.0 2.0

Reading for next class

Social Navigation1. Footprints: history-rich tools for information

foraging (http://www.citeulike.org/user/brusilovsky/article/518781)

2. Supporting Social Navigation on the World-Wide-Web (http://www.citeulike.org/user/claudioferreira/article/86730)

Social Search