Folksonomy and Tagging in the Social Web

Folksonomy and Tagging in the Social Web Dr. Harry Chen CMSC 491S/691S February 18, 2008

Agenda ,[object Object],[object Object],[object Object],[object Object]

Tags Everywhere It’s almost a de facto standard for Web 2.0 sites to support tagging.

Tags are on fire! ,[object Object]

Tags and Tagging ,[object Object],[object Object],[object Object],[object Object],[object Object]

Why Use Tags ,[object Object],[object Object],Can better search algorithms replace the need for tags?

Tags are Old School ,[object Object],Melvil Dewey http://www.redhill.dudley.gov.uk/LearningCentre/old_site/LearningCentre/deweysystem.htm The Dewey Decimal System (DDS)

DDS in Action http://www.db.dk/bh/lifeboat_ko/SPECIFIC%20SYSTEMS/dewey_decimal_classification.htm How do you think these categories are created?

Definition: Taxonomy ,[object Object],[object Object],[object Object],[object Object]

Taxonomy on the Web ,[object Object],Keywords defined by their editors to encourage the readers to stay on their Web sites.

Criticisms Against Taxonomy ,[object Object],[object Object],[object Object],[object Object],Do you think it’s a good idea to organize your Web site using DDS?

Folksonomy Emerges ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Definition: Folksonomy ,[object Object],[object Object],[object Object],http://en.wikipedia.org/wiki/Folksonomy

IMHO ,[object Object],[object Object],[object Object],[object Object]

How do we tag? ,[object Object],[object Object],[object Object]

Traditional Subject Indexing ,[object Object],[object Object],Conceptual analysis Translation Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne.

Conceptual Analysis ,[object Object],[object Object],[object Object],Conceptual analysis Translation

Translation ,[object Object],[object Object],Conceptual analysis Translation

About Traditional Subject Indexing ,[object Object],[object Object],[object Object]

Subject Indexing with feedback ,[object Object],[object Object],Conceptual analysis Translation Feedback

Wikipedia: Subject Indexing with Feedback Wikipedia editors may assign at least 1 category to a page. Editors can reuse the exist category. Editors can suggest new category  “feedback”.

Interesting human behavior in Wikipedia’s Feedback system ,[object Object],[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Any thoughts on why people may have behaved this way?

A Cognitive Analysis of Tagging ,[object Object],[object Object],[object Object],Adopted from “A cognitive analysis of tagging” by Rashmi Sinha. http://www.rashmisinha.com/archives/05_09/tagging-cognitive.html

A Two-Stage Process ,[object Object],[object Object],[object Object],[object Object]

Stage 1: Relate Category Activation Concepts come to you mind: “news”, “video”, “breaking news”, “Atlanta”, “GA”, “cable”, “TV” etc. About to tag: “http://cnn.com”

Stage 2: The Decision How do I choose what concepts to use? “news”, “video”, “breaking news”, “Atlanta”, “GA”, “cable”, “TV” etc.

Decision making is hard! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Analysis Paralysis ,[object Object]

Other questions will slow you down ,[object Object],[object Object]

Web 2.0 Tagging Comes to Help ,[object Object],[object Object],[object Object],[object Object]

Exercise ,[object Object],[object Object]

Tagging Systems ,[object Object],User Resources Tags What kind of relationships exist between users and tags? What kind of relationships exist between resources and tags? What kind of relationships exist between user and resources?

A Typology of Tagging Systems Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Tagging Rights ,[object Object],[object Object],[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Source of Resources ,[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Resource Representation ,[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Automatic Tagging ,[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Resource Connectivity ,[object Object],[object Object],[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Vocabulary Connectivity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Vocabulary Control ,[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Tagging Aggregation ,[object Object],[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Tagging Feedback ,[object Object],[object Object],[object Object],[object Object],Source: Tagging, Folksonomy & Co – Renaissance of Manual Indexing. Jakob Vob, Submitted to the 10 th International Symposium for Information Science, Cologne. Automatic Tagging Resource Connectivity Vocabulary Connectivity Vocabulary Control Tagging Aggregation Tagging Feedback Tagging Rights Source of Resources Resource Representation Tagging System

Tag Visualization ,[object Object],[object Object],[object Object],[object Object],[object Object]

Yahoo! Tagline http://www.research.yahoo.com/taglines/

Tag Cloud as Home Page http://83degrees.com

Elastic Tag Maps http://well-formed-data.net/experiments/tag_maps_v5/

Tag Cloud for a Quick Summary http://tinyurl.com/yu5l2r

Summary ,[object Object],[object Object],[object Object]

Homework for this week! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Next Class: Oxford 2.0 style debate ,[object Object],[object Object],[object Object]

Prior to the day of the debate ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

On the day of the debate ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],There is a catch!

After the debate ,[object Object],[object Object]

Now. Decide the next debate groups

Resolution for Feb. 20, 2008 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Folksonomy and Tagging in the Social Web

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