collaborative tagging

8/14/2019 Collaborative Tagging

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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/


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collaborative tagging

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