Folksonomies: In General and in Libraries
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Workshop on "Folksonomies" held at the National Library Board in Singapore, 2009.
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Folksonomies: In General and in Libraries
- 1. Workshop on FOLKSONOMIES Singapore, February 9, 2009
- 2. We are very proud to hold a workshop in the „informational city“ of Singapore.
- 3. Wolfgang G. Stock Isabella Peters Researcher, Dept. for Information Science, Heinrich-Heine-University Düsseldorf, Germany Lectures on Web 2.0 Services and Information Retrieval Main research area: Folksonomies in Knowledge Representation and Information Retrieval Professor, Head of Dept. for Information Science, Heinrich-Heine-University Düsseldorf, Germany Lectures on Information Retrieval, Knowledge Representation, Informetrics and Information Market Main research areas: Folksonomies, Emotional Information Retrieval and Informetrics of LIS Journals
- 6. Lesson 1 Folksonomies – Indexing without Rules
- 8. Indexing
- 11. Cognitive Indexing Processes Source: Sinha (2005)
- 12. Library 2.0
- 15. Network Economy: Positive Feedback Loop Time Number of active (tagging) users Critical Mass New users come along. Value of the network increase. Number of users of the network increase. „ success breeds success“ only one standard (in a technological area)
- 16. Time red: Competitor yellow: Your Library 2.0 Service „ Combat Area“ „ Take off“ Positive Feedback „ Saturation“ „ Entry“ Number of active (tagging) users Critical Mass
- 19. Lesson 2 Folksonomies in Information Services and Library Catalogues
- 24. Tagging of OPACS: Within Library’s Website: PennTags http://tags.library.upenn.edu/
- 25. Tagging of OPACS: Within Library’s Website: Ann Arbor District Library http://www.aadl.org/catalog
- 26. Tagging of OPACS: Within Library’s Website: University Library Hildesheim http://www.uni-hildesheim.de/mybib/all_tags
- 29. Tagging of Resources Outside the Library‘s Firewall: HEIDI http://katalog.ub.uni-heidelberg.de/cgi-bin/search.cgi
- 30. Tagging of Resources Outside the Library‘s Firewall: LibraryThing http://www.librarything.com/search
- 31. Tagging of Resources Outside the Library‘s Firewall: BibSonomy http://www.bibsonomy.org/
- 46. Short Break
- 47. Lesson 3 Folksonomies and Knowledge Representation
- 49. Power Law Tag Distribution Source : http:// del.icio.us f (x)= C / x a Users Tags 80/20-Rule Long Tail Power Tags
- 50. Inverse-logistic Tag Distribution Source : http:// del.icio.us Users Tags f (x)= e -C‘(x-1) b Long Trunk Long Tail Power Tags
- 51. Document-specific Tag Distributions distributions of the top 10 tags in a broad folksonomy (sample: Delicious) N = 650 bookmarks (minimum of 100 different taging users) Source : Reher (2008); unpublished
- 55. Documents which Provoke Emotions Tagging using scroll-bars Source: Schmidt and Stock (2009)
- 56. Tag Types
- 57. Discrimination Power of Tags low discrimination very low discrimination rare “ Long tail” strong discrimination low discrimination frequent “ Power tags” rare frequent Tags in Concrete Document Tags in Folksonomy
- 60. Lesson 4 Folksonomies and Information Retrieval
- 64. Relevance Ranking of Tagged Documents Source: Peters and Stock (2007)
- 68. Short Break
- 69. Lesson 5 Tag Gardening for Folksonomy Enrichment and Maintenance
- 70. The Folksonomy Tag Garden
- 71. Goal of Tag Gardening: Emergent Semantics
- 77. (geographical) meronymy synonymy hyponymy Hidden Paradigmatic Relations Source : http:// www.flickr.com
- 80. Maintenance of KOS and Folksonomy Source : Christiaens (2006) Folksonomy KOS Tag Gardening new terms – new relations
- 82. Lesson 6 Find „More like me!“ The Social Function of a Folksonomy
- 83. Users – Tags - Documents thematically linked shared users thematically linked shared documents
- 86. More like me! Or: More like This User! single linkage clustering (fictitious example) Sim(tag) = 0.21 Sim(doc) = 0.25 Sim(tag) = 0.65 Sim(doc) = 0.55 Sim(tag) = 0.33 Sim(doc) = 0.29 Sim(tag) = 0.17 Sim(doc) = 0.23 Sim(tag) = 0.08 Sim(doc) = 0.11 Sim(tag) = 0.15 Sim(doc) = 0.17 Sim(tag) = 0.45 Sim(doc) = 0.36
- 88. Final Discussion Folksonomies in Library Catalogues – Lessons Learned
- 95. We would like to thank you very much for attending this Workshop. Greetings from Düsseldorf, Germany!
Hinweis der Redaktion
- Zu Punkt 3): In some cases, taggers are allowed to view the full content of a given resource, and then to assign, directly to that resource, tags that describe it; in others, taggers are allowed merely to view the record describing a given resource, and then to enhance that record by adding to it tags that further describe the resource.
- Zu Punkt 3): For instance, are tags searched when users do “keyword” searches of the OPAC? Is it possible to search or browse tags from within the OPAC?
- Zu Punkt 2): (i) by enhancing the quality of existing records, and/or (ii) by allowing users to discover resources in a new way, viz. by taking account of the recommendations of other users like themselves; Zu Punkt 3): by offering users the opportunity to bookmark resources that they like and that they predict they will wish to access again;
- Zu Punkt 2): (i) by enhancing the quality of existing records, and/or (ii) by recommending resources that are determined to be of potential interest to others