Collaborative Tagging - Folksonomy


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Folksonomy - Advantages over taxonomy and how it influence semantic web.

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Collaborative Tagging - Folksonomy

  1. 1. Collaborative Tagging
  2. 2. Agenda <ul><li>Introduction </li></ul><ul><li>Taxonomy </li></ul><ul><li>Folksonomy </li></ul><ul><li>Tagging in Folksonomy </li></ul><ul><li>Visualizing Folksonomy </li></ul><ul><li>Folksonomy and Semantic Web </li></ul><ul><li>Metadata and Semantic Web </li></ul><ul><li>Folksonomy Advantages </li></ul><ul><li>Folksonomy Disadvantages </li></ul><ul><li>Conclusion </li></ul>
  3. 3. Taxonomy <ul><li>One of the most common strategies for organizing content </li></ul><ul><li>Only admin / authorized person can add / edit categorize the content </li></ul><ul><li>Use of taxonomy is not possible in websites with user generated content </li></ul><ul><li>Content is constantly changing and its not possible to have a standalone taxonomy </li></ul><ul><li>No single party can enforce taxonomy in whole user community </li></ul><ul><ul><li>Example, Wordpress blog categories. </li></ul></ul><ul><ul><li>To overcome the disadvantages in Taxonomy, Folksonomy introduced. </li></ul></ul>
  4. 4. Folksonomy <ul><li>Folksonomy became popular in 2004 </li></ul><ul><li>Folksonomy is a characteristic of web 2.0 </li></ul><ul><li>Folksonomy = Collective Tagging = Tagging = Social Tagging = Social Indexing = Collaborative Tagging </li></ul><ul><li>Folksonomy </li></ul><ul><li>Online => Delicious Offline => Library Records </li></ul><ul><li>Folksonomy => Folk + Taxonomy </li></ul><ul><ul><li>Folks => Done by people </li></ul></ul><ul><ul><li>Taxonomy => Classification of item into groups </li></ul></ul>
  5. 5. Tagging in Folksonomy <ul><li>TAG </li></ul><ul><li>Tag is simply a freely chosen set of textual keywords. </li></ul><ul><li>Tags not created but specialists and created by users </li></ul><ul><li>Tag can be categorized with any word that defines a relationship between the online resource and a concept in the user's mind </li></ul><ul><li>Any number of words might be chosen, some of which are obvious representations, others making less sense outside the tag author's context. </li></ul>Resources Users Tags
  6. 6. Visualizing Folksonomy <ul><li>Tag cloud – Way to visualize tag in a Folksonomy. </li></ul><ul><li>Tag clouds represents by size, number of times the tag applied to single item and quality of content. </li></ul><ul><li>Tag clouds are interactive </li></ul><ul><li>Tags are hyperlinks thus allows users to drill down on the data. </li></ul><ul><li>Delicious is the first bookmarking site to introduce tagging concept. </li></ul>
  7. 7. Folksonomy and Semantic Web <ul><li>Folksonomy intended to make a body of information increasingly easy to search, discover, and navigate over time </li></ul><ul><li>Folksonomy hold a key in developing semantic web and information retrieval system. </li></ul><ul><li>Web content searchable through machine readable meta datas. Not sure every web authors have added metadata in their pages. </li></ul><ul><li>Time consuming to learn and use </li></ul><ul><li>How SE Categorize content in WEB </li></ul><ul><li><meta name=&quot;keywords&quot; content=&quot;computing, computer software, computer&quot;> </li></ul><ul><li><meta name=&quot;description&quot; content=&quot;Cheap widgets for sale&quot;> </li></ul><ul><li><meta name=&quot;author&quot; content=“Mercy Livingstone&quot;> </li></ul>
  8. 8. Metadata and Semantic Web <ul><li>Examples of Metadata for Book </li></ul><ul><ul><li>Title </li></ul></ul><ul><ul><li>Author </li></ul></ul><ul><ul><li>Date of Publication </li></ul></ul><ul><ul><li>Subject </li></ul></ul><ul><ul><li>Unique Indentifier (International Standard Book Number) </li></ul></ul><ul><ul><li>Number of pages </li></ul></ul><ul><ul><li>Language of text </li></ul></ul>
  9. 9. Metadata and Semantic Web <ul><li>Example of Metadata for Audio </li></ul><ul><ul><li>Album Name </li></ul></ul><ul><ul><li>Song title </li></ul></ul><ul><ul><li>Year </li></ul></ul><ul><ul><li>Composer </li></ul></ul><ul><ul><li>Contributing Author </li></ul></ul><ul><ul><li>Track Number </li></ul></ul><ul><ul><li>Album Artist </li></ul></ul><ul><li>People also use “Dublin Core” metadata which consists of standard 15 metadata. </li></ul>
  10. 10. Folksonomy Advantages <ul><li>To provide additional keywords to help search engines and tag services add up your keyword counts and classify your post content. </li></ul><ul><li>To provide additional navigation on your site, like an index reference, helping the user find related post content. </li></ul><ul><li>Cheap, easy way to classify web content </li></ul><ul><li>Capable to adapt to user style </li></ul><ul><li>Scalability – easy for everyone use </li></ul><ul><li>Reflects user's vocabulary </li></ul><ul><li>Help machine to retrieve best information in the web.(If done with accuracy) </li></ul>
  11. 11. Folksonomy Disadvantages <ul><li>Polisemy - Same tag with different meaning </li></ul><ul><ul><ul><li>Ex, Chicken, Windows </li></ul></ul></ul><ul><li>Synonyms – Different tags with same meaning </li></ul><ul><ul><ul><li>Ex, Mate,Friend; Ocean, Sea </li></ul></ul></ul><ul><li>Plural Vs Singular </li></ul><ul><li>Acronym and Abbreviations </li></ul><ul><li>No spaces allowed (only single word) </li></ul><ul><li>Language Barrier </li></ul><ul><li>Organized by amateur </li></ul><ul><li>Anti-spam measure is tough </li></ul>
  12. 12. Conclusion <ul><li>Web is infinite, can’t rely on experts to classify things </li></ul><ul><li>Its upto end users to contribute </li></ul><ul><li>Single tag is not going to speak the language. The number of increase in tag that matters. Ex. Flickr </li></ul><ul><li>Some extend taxonomy also can’t be ruled out. Ex. Library Catalogue. </li></ul><ul><li>We have to capitalize on the benefits of both the systems. </li></ul><ul><li>University of Pennsylvania adopted Penn Tagg </li></ul><ul><li>Beyond the partnership with Taxonomy, Folksonomy moves forward in future classifying web towards creating semantic web. </li></ul>
  13. 13. Thank you