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From Web 1.0 to Web 2.0 and Back – How did your Grandma Use to Tag?

From Web 1.0 to Web 2.0 and Back – How did your Grandma Use to Tag?. Sheila Kinsella , Adriana Budura, Gleb Skobeltsyn, Sebastian Michel, John G. Breslin, Karl Aberer. From Web 1.0 – Anchortext…. Users link to resources of interest from their webpages (implicit annotations)

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From Web 1.0 to Web 2.0 and Back – How did your Grandma Use to Tag?

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  1. From Web 1.0 to Web 2.0 and Back – How did your Grandma Use to Tag? Sheila Kinsella, Adriana Budura, Gleb Skobeltsyn, Sebastian Michel, John G. Breslin, Karl Aberer

  2. From Web 1.0 – Anchortext… • Users link to resources of interest from their webpages (implicit annotations) • Limited to web authors

  3. …to Web 2.0 - Tagging • Explicit annotations of resources • Anyone can participate

  4. So has anything changed?

  5. Example results (1)

  6. Example results (2)

  7. Example results (3)

  8. Experimental study • Datasets: • Web: WEBSPAM-2007, 12M pages from .uk domain • Del.icio.us: 2007 Crawl containing tags for 4.5M URLs • Overlap between datasets: 192k URLs • Goal: ? ≈

  9. Results

  10. Overlap between the tags • Anchortags overlap with del.icio.us tags • Two measures: • deliciousness@k: how many anchortags are also among del.icio.us tags • anchortextness@k: how many del.icio.us tags can be inferred from anchortext

  11. User study • Tags for 20 URLs: • top-5 tags from del.icio.us • top-5 anchortags • 25 people score every tag: • 0 (non-relevant), • 1 (somewhat relevant), • 2 (very relevant).

  12. But users don’t always agree • Relevance of a tag is highly subjective

  13. Many new social tags

  14. Conclusions • Substansial overlap between top tags derived from anchortext and del.icio.us tags • Users rate anchortags at a similar quality to user-assigned tags – but this is subjective • Del.icio.us still provides many new tags ≈ ≠

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