Ca 8 social tagging and folksonomie

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Ca 8 social tagging and folksonomie

  1. 1. Social Tagging and Folksonomies 1
  2. 2. What are tags?  Keywords or terms associated with or assigned to a piece of information  They enable keyword-based classification and search of information 2
  3. 3. Basic Model for Tagging Systems USER RESOURCES TAGS OPAL Conference, August 2008 3
  4. 4. OPAL Conference, August 2008 4
  5. 5. OPAL Conference, August 2008 5
  6. 6. OPAL Conference, August 2008 6
  7. 7. OPAL Conference, August 2008 7
  8. 8. Don’t confuse tags with keywords or full-text searching     Keywords are behind the scenes, tags are often visibly aggregated for use and browsing Keywords can not be hyper-linked Keywords imply searching, tags imply linking It’s more about connecting items rather than categorizing them. OPAL Conference, August 2008 8
  9. 9. Tags can be…  Descriptions of the subject matter  Where the item is located  The intended use of the item  Individual  Different people have different tagging patterns  Tagging systems encourage differences OPAL Conference, August 2008 9
  10. 10. Tags are  Non-hierarchical A way to create links between items by the creation of sets of objects  A means of connecting with others interested in the same things OPAL Conference, August 2008 10
  11. 11. Tagging Systems Define  Who can tag  What can be tagged  What kinds of tags can be used  Tagging systems may result in the creation of a “folksonomy” OPAL Conference, August 2008 11
  12. 12. Types of Tagging Systems  Managing personal information  Social bookmarking  Collecting and sharing digital objects  Improving the e-commerce experience OPAL Conference, August 2008 12
  13. 13. Why is tagging so popular?  It is easy and enjoyable  It has a low cognitive cost  It is quick to do  It provides self and social feedback immediately OPAL Conference, August 2008 13
  14. 14. What is a folksonomy?  Folksonomy refers to an “emergent, grassroots taxonomy” An aggregate collections of tags  A bottom-up categorical structure development  An emergent thesaurus According to Wikipedia: A folksonomy is the practice and method of collaboratively creating and managing tags to annotate and categorize content. In contrast to traditional subject indexing, metadata is generated not only by experts but also by creators and consumers of the content. Usually, freely chosen keywords are used instead of a controlled vocabulary  OPAL Conference, August 2008 14
  15. 15. What makes folksonomies popular?  Their dynamic nature works well with dynamic resources  They’re personal  They lower barriers to cooperation OPAL Conference, August 2008 15
  16. 16. Strengths of folksonomies  Cost-effective way to organize Internet.  Social benefits.  It’s inclusive.  For many environments, they work well. OPAL Conference, August 2008 16
  17. 17. Weaknesses of folksonomies       They do not yield the level of clarity that controlled vocabularies do. Term ambiguity – words with multiple meanings No synonym control. Singular and plural forms create redundant headings No guidelines for the use of compound headings, punctuation, word order No scope notes and no cross references How does wrong information impact retrieval  Conflicting cultural norms  Sometimes authority counts  OPAL Conference, August 2008 17

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