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Collaborative Tagging
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Agenda
Introduction Taxonomy Folksonomy
Tagging in Folksonomy Visualizing Folksonomy Folksonomy and Semantic Web Metadata and Semantic Web
Folksonomy Advantages Folksonomy Disadvantages Conclusion
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Taxonomy
One of the most common strategies for organizing content
Only admin / authorized person can add / edit categorize thecontent
Use of taxonomy is not possible in websites with user generated
content Content is constantly changing and its not possible to have a
standalone taxonomy
No single party can enforce taxonomy in whole user community
Example, Wordpress blog categories. To overcome the disadvantages in Taxonomy, Folksonomy
introduced.
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Folksonomy
Folksonomy became popular in 2004Folksonomy is a characteristic of web 2.0Folksonomy = Collective Tagging = Tagging = Social Tagging =
Social Indexing = Collaborative Tagging
Folksonomy
Online => Delicious Offline => Library Records
Folksonomy => Folk + TaxonomyFolks => Done by people
Taxonomy => Classification of item into groups
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Tagging in Folksonomy
TAG Tag is simply a freely chosen set of textual keywords. Tags not created but specialists and created by users Tag can be categorized with any word that defines a
relationship between the online resource and a concept in theuser's mind
Any number of words might be chosen, some of which areobvious representations, others making less sense outside thetag author's context.
Resources
U s e r
s T a g s
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Visualizing Folksonomy
Tag cloud Way to visualizetag in a Folksonomy.
Tag clouds represents bysize, number of times the tagapplied to single item andquality of content.
Tag clouds are interactive Tags are hyperlinks thus
allows users to drill down onthe data.
Delicious is the firstbookmarking site tointroduce tagging concept.
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Folksonomy and Semantic Web
Folksonomy intended to make a body of informationincreasingly easy to search, discover, and navigate over time
Folksonomy hold a key in developing semantic web andinformation retrieval system.
Web content searchable through machine readable metadatas. Not sure every web authors have added metadata intheir pages.
Time consuming to learn and use
How SE Categorize content in WEB
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Metadata and Semantic Web
Examples of Metadata for Book
Title
Author
Date of PublicationSubject
Unique Indentifier (International Standard BookNumber)
Number of pagesLanguage of text
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Metadata and Semantic Web
Example of Metadata for Audio Album Name Song title Year Composer Contributing Author Track Number
Album ArtistPeople also use Dublin Core metadata which consists of
standard 15 metadata.
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Folksonomy Advantages
To provide additional keywords to help search engines and tagservices add up your keyword counts and classify your postcontent.
To provide additional navigation on your site, like an index
reference, helping the user find related post content. Cheap, easy way to classify web content
Capable to adapt to user style
Scalability easy for everyone use
Reflects user's vocabulary Help machine to retrieve best information in the web.(If done
with accuracy)
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Folksonomy Disadvantages
Polisemy - Same tag with different meaning Ex, Chicken, Windows
Synonyms Different tags with same meaning Ex, Mate,Friend; Ocean, Sea
Plural Vs Singular Acronym and Abbreviations No spaces allowed (only single word)
Language Barrier Organized by amateur Anti-spam measure is tough
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Conclusion
Web is infinite, cant rely on experts to classify things Its upto end users to contribute Single tag is not going to speak the language. The number of
increase in tag that matters. Ex. Flickr Some extend taxonomy also cant be ruled out. Ex. Library
Catalogue. We have to capitalize on the benefits of both the systems. University of Pennsylvania adopted Penn Tagg Beyond the partnership with Taxonomy, Folksonomy moves
forward in future classifying web towards creating semanticweb.
http://tags.library.upenn.edu/tag/http://tags.library.upenn.edu/tag/http://tags.library.upenn.edu/tag/8/14/2019 Collaborative Tagging
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