Transcript Chapter 4 Organizing Information

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Organizing Information
Web 2.0:
Concepts and
Applications
Overview
 Information once stored physically now is becoming
available digitally
 Tagging is the process of assigning short, descriptive
labels to digital information
– Tag
– Collaborative process
– Many online services and Web applications support tagging
 Social bookmarking is the process by which users
post the URLs of their favorite Web sites online
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Organizing Digital Information
Two popular approaches to organizing digital
information
– Hierarchical organization
• Dmoz
– Nonhierarchical organization
• Delicious
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Organizing Digital Information
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Organizing Digital Information
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Organizing Digital Information
Storing files in folders on your personal
computer uses hierarchical organization
Adding tags to your pictures uses
nonhierarchical organization
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Organizing Digital Information
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Tagging Information on the Web
On the Web, you can tag items such as:
– E-mail messages
– Items in your news reader
– Blog posts
– Photographs
– Articles or content of interest
You can associate a single item with multiple
different tags
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Tagging Information on the Web
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Tagging Information on the Web
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Tagging Information on the Web
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Tagging as a Means of Collective
Organization
Tagging can create associations between
pictures, documents, or other digital
information
– Tags should be descriptive
Taxonomy is a methodical, scientific way of
unambiguously classifying information
Folksonomy describes the collective result of
different people individually applying tags to
the same online content
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Tagging as a Means of Collective
Organization
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Using Tagged Data
 Tagged data enables
the capability of
recommending products
to potential customers
 Collaborative filtering is
a method whereby
predictions are made
about one user’s
interests by collecting
and analyzing data from
many users
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Sharing and Tagging Photos
on Flickr
Flickr is a popular Web site for uploading,
sharing, and organizing digital pictures and
videos
– You must first create an account in order to use
the service
Your collection of pictures on Flickr is called a
photostream
– Recently uploaded pictures are displayed first
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Sharing and
Tagging
Photos
on Flickr
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Sharing and Tagging Photos on Flickr
Clicking on a photo displays that photo’s page
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Activity
Visit flickr.com
Explore photos by tags
Find the following photos.
Hint: Use the Advanced options to locate
photos more quickly.
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Sharing and Tagging Photos
on Flickr
 After uploading your
photos, you can
organize them into
sets based on the
location or event
 You also can view
all of your assigned
tags as a tag cloud
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Sharing and Tagging Photos on Flickr
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Syndicating Your Photos Using RSS
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Setting Creative Commons Licenses
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Adding Geotags
 A geotag contains the
latitude and longitude
coordinates of where a
photo was taken in
order to plot it on a map
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Social Bookmarking
with Delicious
Web browsers use different terminology to
refer to the collection of favorite Web sites
– Favorites
– Bookmarks
You can organize your favorites and
bookmarks into folders
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Social Bookmarking with Delicious
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Question
How many bookmarks do you keep on your
phone/ipad/laptop?
–
–
–
–
0
1-10
11-30
Over 30
How often do you use bookmarks when surfing
the web?
– Everytime
– Most of the time
– Occasionally
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Sharing and Tagging Bookmarks
with Delicious
Delicious provides a way to store your
bookmarks online
– Must have an account
You can share your bookmarks with others
Delicious measures the popularity of a
particular Web page
Question: How do you share a bookmarked link
with your friends?
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Sharing and Tagging Bookmarks with Delicious
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Interacting with Delicious
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Saving a Bookmark
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Saving a
Bookmark
 You can save
others’
bookmarks into
your collection
 You can click on
related tools to
find other
bookmarks that
may be of interest
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Searching for Bookmarks
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Advanced Features of Delicious
Syndicating Bookmarks Using RSS
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Advanced Features of Delicious
Sharing Bookmarks with Other Users
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Advanced Features of Delicious
A linkroll displays the most recently added
bookmarks on your blog or Web site
A tagroll displays your tags as a tag cloud
To display a linkroll or tagroll on your blog,
copy and paste the HTML code for the linkroll
or tagroll from the Delicious Web site into the
HTML editor
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Advanced Features of Delicious
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Advanced Features of Delicious
Encouraging Users to Tag Your Content on
Delicious
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Summary
 Tagging allows individuals to use keywords to
describe digital information
 Several Web sites allow users to organize digital
content using tags
– Flickr
 Search engines and tag-based searches
 Both Flickr and Delicious promote the use of tags to
describe and organize content in ways that are
personally relevant
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Organizing Information
Chapter 4
Complete
Web 2.0:
Concepts and
Applications